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Patent Abstract
A water filter device for use with a brew basket associated with
a coffee maker or other brewed beverage device including a water
filter member and a filter holder member adaptable for holding the
water filter member. The filter holder member includes one or more
support tabs extending outwardly from the periphery thereof to an
extent effective for engaging the brew basket so as to support the
filter holder member on the brew basket. The filter holder member
further includes at least one guide channel positioned and located
for removably receiving the water filter member therewithin. The
water filter member may include a grip tab for allowing a user to
easily grasp the water filter member for easy insertion and removal
from the filter holder member.
Patent Claims
1. A water filter device for use with a brew basket comprising:
a water filter member; and a filter holder member adaptable for
holding said water filter member, said filter holder member having
at least one support tab extending outwardly from the periphery
thereof to an extent effective for engaging a brew basket so as
to support said filter holder member on the brew basket; said filter
holder member further including at least one guide channel for removably
receiving said water filter member therewithin.
2. The water filter device defined in claim 1 wherein said water
filter member includes a grip tab positioned and located to facilitate
grasping of the water filter member by a user.
3. The water filter device defined in claim 1 wherein said water
filter member includes an indentation, and wherein said filter holder
member includes a corresponding projection adaptable for mating
with said indentation when said water filter member is received
within said at least one guide channel.
4. The water filter device defined in claim 1 wherein said at least
one guide channel includes at least one side portion which is substantially
straight.
5. The water filter device defined in claim 1 wherein said filter
holder member includes one guide channel extending around at least
one half of the periphery thereof.
6. The water filter device defined in claim 5 wherein said one
guide channel includes substantially straight opposed side portions.
7. The water filter device defined in claim 6 wherein said water
filter member includes substantially straight opposed side portions
which correspond to the substantially straight opposed side portions
associated with said one guide channel.
8. The water filter device defined in claim 1 wherein said filter
holder member includes at least one projecting rib which extends
downwardly therefrom, said at least one projecting rib interacting
with said water filter member when said water filter member is received
within said at least one guide channel for temporarily securing
said water filter member within said at least one guide channel.
9. The water filter device defined in claim 8 wherein said water
filter member includes an edge portion, said edge portion engaging
said projecting rib for temporarily securing said water filter member
within said at least one guide channel.
10. The water filter device defined in claim 1 wherein said filter
holder member includes a date indicator.
11. A water filter device for use with a brew basket comprising:
a water filter member; and a filter holder member having at least
one support tab extending outwardly therefrom to an extent effective
for engaging a brew basket so as to suspend said filter holder member
thereupon; said filter holder member further including at least
one guide channel positioned adjacent one end portion thereof for
removably receiving said water filter member therewithin.
12. The water filter device defined in claim 11 wherein said at
least one guide channel is sized and shaped so as to correspond
to the size and shape of said water filter member.
13. The water filter device defined in claim 11 wherein said water
filter member includes a frame member, said frame member being correspondingly
shaped so as to be slidably removably received within said at least
one guide channel.
14. The water filter device defined in claim 13 wherein said frame
member includes a grip tab positioned and located to facilitate
grasping of the water filter member by a user.
15. The water filter device defined in claim 13 wherein said frame
member includes an indentation, and wherein said filter holder member
includes a corresponding projection adaptable for mating with said
indentation when said water filter member is received within said
at least one guide channel.
16. The water filter device defined in claim 11 wherein said at
least one guide channel has at least one portion thereof which is
substantially straight.
17. The water filter device defined in claim 11 wherein said filter
holder member includes at least one projecting rib, and said water
filter member includes means cooperatively engageable with said
at least one projecting rib for temporarily securing said water
filter member within said at least one guide channel when said water
filter member is received therewithin.
18. The water filter device defined in claim 17 wherein said water
filter member includes a frame member, and wherein said means cooperatively
engageable with said at least one projecting rib includes said frame
member.
19. The water filter device defined in claim 17 wherein said water
filter member includes a grip tab, and wherein said means cooperatively
engage able with said at least one projecting rib includes said
grip tab.
20. The water filter device defined in claim 17 wherein said water
filter member includes a frame member and a grip tab extending therefrom,
and wherein said means cooperatively engageable with said at least
one projecting rib includes an edge portion formed at the joinder
of said grip tab with said frame member.
21. The water filter device defined in claim 11 wherein said filter
holder member includes a date indicator.
22. The water filter device defined in claim 11 wherein said filter
holder member includes support structure extending inwardly from
the periphery thereof.
23. The water filter device defined in claim 18 wherein said frame
member includes at least one projecting rib, said at least projecting
rib associated with said filter holder member interacting with said
at least one projecting rib associated with said frame member for
temporarily securing said water filter member within said at least
one guide channel when said water filter member is received therewithin.
24. The water filter device defined in claim 19 wherein said grip
tab includes at least one projecting rib, said at least one projecting
rib associated with said filter holder member interacting with said
at least one projecting rib associated with said grip tab for temporarily
securing said water filter member within said at least one guide
channel when said water filter member is received therewithin.
25. The water filter device defined in claim 11 wherein said filter
holder member includes a plurality of support tabs.
26. A water filter device for use with a brew basket comprising:
a water filter member having a frame member and a filter element
extending therebetween; and a filter holder member adaptable for
holding said water filter member, said filter holder member having
a plurality of support tabs extending outwardly therefrom for engaging
a brew basket, said plurality of support tabs enabling said filter
holder member to be positioned and located in supporting relationship
to a brew basket such that said water filter member is positioned
in communication therewith; said filter holder member further including
a guide channel positioned and located adjacent one end portion
of said filter holder member for insertably removably receiving
said water filter member therewithin.
27. The water filter device defined in claim 26 wherein the frame
member associated with said water filter member includes a grip
tab extending outwardly therefrom.
28. The water filter device defined in claim 27 including cooperatively
engageable means associated with said filter holder member and said
water filter member for temporarily securing said water filter member
within said guide channel when said water filter member is insertably
positioned therewithin.
29. The water filter device defined in claim 28 wherein said cooperatively
engageable means includes at least one projecting rib associated
with said filter holder member and an edge portion formed at the
joinder of said grip tab with said frame member, said at least one
projecting rib engaging said edge portion when said water filter
member is insertably positioned within said guide channel.
30. The water filter device defined in claim 28 wherein said cooperatively
engageable means includes at least one projecting rib associated
with said filter holder member and at least one projecting rib associated
with said grip tab, said at least one projecting ribs interacting
with each other when said water filter member is insertably positioned
within said guide channel.
31. The water filter device defined in claim 26 wherein said filter
frame member includes substantially straight opposed side portions
and said guide channel includes substantially straight corresponding
opposed side portions.
32. The water filter device defined in claim 26 wherein the frame
member associated with said water filter member includes an indentation,
and wherein said filter holder member includes a corresponding projection
adaptable for mating with said indentation when said water filter
member is insertably positioned within said guide channel.
Patent Description
BACKGROUND OF THE INVENTION
[0001] The present invention relates to water filter devices for
brew baskets such as those used in coffee makers and other brewed
beverage devices and, more particularly, to substantially one-piece
water filter holding member which allows for quick and easy removal
and replacement of the filter member without the need of replacing
the holding structure.
[0002] Various devices have been devised to provide water filters
for coffee makers and other brewed beverage type devices, many of
them being complicated and costly. For example, one of the more
simple water filter devices includes a filter contained in a circular
filter holder that is rimmed with a plurality of flexible thermoplastic
supporting tabs. This device is pushed down into a generally conical
brew basket until the supporting tabs resiliently bend against the
interior surface of the brew basket. These flexible supporting tabs
support the overall filter within the brew basket. See, for example,
Koslow et al. U.S. Patent Publication No. US2001/0032822 A1. Unfortunately,
this device is prone to movement within the brew basket due to the
fact that the thermoplastic supporting tabs tend to soften and lose
their resiliency when subjected to heat and stress. This means that
the filter may drop onto the coffee grounds or other brewed substances,
or the filter may tip allowing unfiltered water to reach the coffee
grounds or other brewed substances.
[0003] Other known water filter constructions include a filter
holder device having the filter member fixedly mounted thereon such
as by adhesively bonding, insert molding, ultrasonically welding,
or otherwise permanently attaching the filter member to the filter
holder. In this particular arrangement, the filter member and filter
holder must be replaced as a single unit. Other prior art constructions
include a two-piece filter holder adaptable for mounting upon a
brew basket using a plurality of support tabs, the filter holder
including a carrier member having a plurality of support tabs associated
therewith, and a top retainer member wherein the filter member again
is bonded or otherwise fixed to the top retainer member. In this
construction, the top retainer member and associated filter member
must be replaced when a new filter member is desired.
[0004] Still further, another known prior art water filter device
includes a three-piece unit wherein support tabs are associated
with the filter holder, and the filter member is held in proper
position adjacent the filter holder through the use of a retaining
ring which attaches to the bottom of the filter holder such as by
screwing onto the bottom of the filter holder or by using any other
suitable interlocking means. In this construction, the filter is
sandwiched and/or clamped between the filter holder and the retaining
ring. Replacement of the filter member involves unscrewing or detaching
the retaining ring from the bottom portion of the filter holder;
removing the filter member from the retaining ring; placing a new
filter member within the retaining ring; and thereafter again suitably
attaching the retaining ring to the filter holder to sandwich the
filter member therebetween. See, Applicant's co-pending U.S. patent
application Ser. No. 10/833,530 for examples of the above-referenced
prior art structures.
[0005] Since water filters lose their effectiveness after a period
of use and therefore must be replaced, users want simple and inexpensive
water filter devices. As indicated above, replacement of prior art
water filter members can be expensive, time consuming and complicated;
some require the purchase of an entirely new water filter device,
or portions thereof other than simply the water filter member; and
some water filter devices are simply inexpensive and ineffective.
It is therefore desirable to provide a water filter device which
is inexpensive, simple, effective, and which allows users to easily
and inexpensively replace used water filter members when needed.
[0006] Accordingly, the present invention is directed to a water
filter device which overcomes one or more of the problems set forth
above.
SUMMARY OF THE INVENTION
[0007] The present invention overcomes many of the shortcomings
and limitations of the prior art devices discussed above and teaches
the construction and operation of a water filter device adapted
for use with a wide variety of different brew baskets used in association
with coffee makers and other brewed beverage making devices. In
one aspect of the present invention, the present water filter device
includes a water filter holder member having both means for supporting
the water filter holder upon a brew basket, and means for removably
receiving a water filter member adjacent one end portion thereof.
[0008] More particularly, in one aspect of the present invention,
the support means for suspending the filter holder member upon a
particular brew basket may include one or more support tabs extending
outwardly from the periphery of the filter holder member to an extent
effective to engage the brew basket. The support tabs are of sufficient
dimension and strength when supported on the brew basket so as to
demonstrate no substantial deformation, under normal heat conditions,
during use. A single support tab may extend a sufficient distance
around the periphery or rim of the filter holder member so as to
adequately suspend and support the entire device on or over the
brew basket. The receiving means for holding the filter member adjacent
one end portion of the filter holder member may include at least
one guide channel associated with the filter holder member adaptable
for slidably receiving the water filter member. In this regard,
the filter member may include a frame structure and tab means for
allowing a user to easily insert and remove the water filter member
from the filter holder member.
[0009] In another aspect of the present invention, the filter member
and filter holder member include corresponding means for properly
positioning and locating the filter member within the channel receiving
means.
[0010] In another aspect of the present invention, the filter member
and the filter holder member may include cooperatively engageable
means for temporarily securely holding the filter member within
the channel receiving means during normal use.
[0011] In another aspect of the present invention, the filter member
and the corresponding channel receiving means may include additional
means for preventing rotation of the filter member within the channel
receiving means.
[0012] In another aspect of the present invention, the filter holder
member may include a date indicator.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] For a better understanding of the present invention, reference
may be made to the accompanying drawings.
[0014] FIG. 1 is perspective view of one embodiment of the present
water filter device constructed in accordance with the teachings
of the present invention.
[0015] FIG. 2 is perspective view of one embodiment of the present
filter holder member without the water filter member inserted therein,
illustrating the construction of the top portion thereof.
[0016] FIG. 3 is another perspective view of the filter holder
member of FIG. 2 illustrating the construction of the bottom portion
thereof.
[0017] FIG. 4 is a side perspective view of the filter member of
FIG. 2 with the water filter member inserted into the filter holder
member.
[0018] FIG. 5 is a perspective view of one embodiment of the water
filter member of FIGS. 1 and 4.
DETAILED DESCRIPTION OF THE INVENTION
[0019] Referring to the drawings more particularly by reference
numbers wherein like numerals refer to like parts, the number 10
in FIGS. 1 and 5 identifies one embodiment of a water filter device
constructed according to the teachings of the present invention.
The device 10 includes a water filter holder member 12 and a water
filter member 40, and is generally annularly shaped so as to conform
with the shape of most brew baskets associated with coffee makers
and other similar type brewed beverage making devices. The filter
holder member 12 includes a plurality of support tabs 14 that extend
outwardly therefrom to engage the top surface of top rim of a typical
brew basket (not shown). The support tabs 14 rest upon an upper
surface of the walls or other structure of a brew basket and support
the filter holder member 12 upon the brew basket so as not to interfere
with the insertion and removal of the brew basket into and out of
a coffee maker or other beverage making device. As will be hereinafter
explained, the filter holder member 12 is specifically designed
to removably hold and support the water filter member 40.
[0020] As best illustrated in FIGS. 1 and 2, the filter holder
member 12 is shown as having three support tabs 14 since this number
provides sufficient support and stability to hold the filter holder
member 12 securely in place upon the brew basket while minimizing
the amount of material needed to fabricate the member 12. However,
it is recognized and anticipated that any plurality of support tabs
14 could be utilized and still be within the scope of the present
invention. In addition, it is also recognized and anticipated that
one support tab could likewise be utilized in association with the
present invention if the single support tab is formed as an annular
ring or rim encircling the rim or periphery of the filter holder
member 12, and if the single support member extends around a substantial
portion of the periphery of the holder member 12 such as extending
more than 180.degree. around the periphery thereof. Although one
support member may be used as explained, this requires substantially
more material as compared to the support tab structure 14 illustrated
in FIGS. 1 and 2. Preferably, the support tabs 14 are integrally
formed or homogeneously molded onto the filter holder member 12,
and such support tabs extend outwardly as illustrated only far enough
to adequately support the filter holder member 12 upon a typical
brew basket, but not so far as to interfere with the insertion and
removal of the brew basket from the coffee maker or other beverage
making device.
[0021] It is also recognized and anticipated that the filter holder
member 12 may be supported above a particular brew basket through
other means including other support structures such as snap-on mounting
tabs. Still further, the present filter holder member 12 may be
supported by a hinge mechanism which links the filter holder member
12 with a particular brew basket. In this particular arrangement,
the filter holder member may be removably and replaceably snap-fitted
to the brew basket such as through the use of a pair of resilient
ball and socket hinges of the type commonly used on hinged plastic
boxes and the like. A piano type hinge may also be used. A user
may simply swing open the filter holder member away from the brew
basket via the hinge mechanism. In the open position, a user can
access the contents of the brew basket, for example, to add or remove
ground coffee beans, and a user may likewise easily access and removably
replace the water filter member 40 as will be hereinafter further
explained. See Applicant's co-pending U.S. patent application Ser.
No. 10/833,530 for further disclosure with respect to snap-on mounting
tabs and various types of hinges for hingedly attaching the filter
holder member to a brew basket.
[0022] As best illustrated in FIGS. 1-4, the filter holder member
12 preferably includes the support structure 16 which extends inwardly
from the periphery of the holder member 12. The support structure
16, as illustrated, includes a plurality of cross braces 18 extending
inwardly from three points on the periphery of the filter holder
member 12, all cross brace members 18 meeting at a central point
19. It is recognized and anticipated that although the support structure
16 illustrated in FIGS. 1-4 provides adequate support for the filter
holder member 12 while minimizing the amount of material needed
to form such structure, other support structures are likewise adequate
and available for use. One skilled in the art could easily devise
other support structure orientations and formations to provide the
necessary support and stability to the holder member 12. For example,
a "cross" formation or an "X" formation would
likewise suffice. However, the support structure 16 should not take
up so much space within the interior of the filter holder member
12 as to hinder or otherwise obstruct the passage of water therethrough,
as water must pass through the open space formed by the support
structure 16 to reach the filter member 40. Although the support
structure 16 provides mechanical support and stability to the overall
filter holder member 12, one skilled in the art could likewise devise
a filter holder member construction without the need for incorporating
the support structure 16 therein, for example, by constructing the
filter holder member out of a highly structurally sound material
such as a strong composite material, a metal alloy, or other similar
materials.
[0023] As best illustrated in FIGS. 2 and 3, the filter holder
member 12 likewise includes a guide channel 20 which is preferably
integrally formed with the holder member 12 and is shaped so as
to conform to the overall shape of the filter member 40 illustrated
in FIG. 5. In the embodiment illustrated in FIGS. 1-4, the guide
channel 20 is formed adjacent the bottom portion 30 of the filter
holder member 12 and extends downwardly therefrom forming a groove
or slot 22 which extends the entire length of the guide channel
20. The groove or slot 22 is sized and shaped so as to receive the
frame member 42 associated with filter member 40 (FIG. 5). In this
regard, in the embodiment illustrated in FIGS. 1-4, the guide channel
20 includes substantially straight side portions 24 which correspond
to the substantially straight side portions 44 associated with the
filter frame member 42. The remaining portion 26 of the guide channel
20 which extends between the substantially straight side portions
24 is angularly shaped and corresponds to the angularly shaped portions
46 of the filter frame member 42. The guide channel 20 is specifically
sized and shaped so that the filter frame member 42 can be slid
into and out of the guide channel 20.
[0024] Engagement of the filter member 40 with the guide channel
20 of the filter holder member 12 is illustrated in FIG. 4. The
filter member 40 can be easily slidably maneuvered into and out
of the guide channel 20 thereby making replacement of the filter
member 40 an easy task. The filter member 40 should fit snugly within
the guide channel 20, but should not fit so tightly that it is difficult
for a user to insert and remove the filter member 40 when necessary.
The substantially straight side portions 44 of the filter frame
member 42 prevent rotation of the water filter member 40 when engaged
with the guide channel 20. However, it is recognized and anticipated
that the filter frame member 42 and associated water filter 50 could
take on a wide variety of different shapes such as circular, oval,
square, rectangular, and other polygonal shapes, and that the guide
channel 20 can be correspondingly positioned and shaped so as to
receive the frame member associated with the water filter member
40. It is also recognized and anticipated that the filter frame
member 42 and the corresponding guide channel 20 of filter holder
member 12 can be selected and configured to enable only correspondingly
conformingly shaped water filter members 40 to be used with certain
coffee makers, brew baskets, or other brewed beverage making devices.
[0025] As best illustrated in FIGS. 1-4, the rear portion of the
guide channel 20 preferably includes a protrusion 28 extending inwardly
from the guide channel 20. The protrusion 28 is sized and shaped
so as to correspond to an indentation or recessed portion 48 associated
with the filter frame member 42 as best illustrated in FIG. 5. The
interaction between the protrusion 28 of the filter holder member
12 and the recessed portion or indentation 48 of the water filter
member 40 serves as locating means or a keying mechanism for properly
positioning the water filter member 40 within the guide channel
20 and likewise serves to further prevent rotation of the filter
member 40 within the guide channel 20. The protrusion 28 and the
corresponding recessed portion 48 are optional features and merely
further facilitate proper orientation of the water filter member
40 when slidably engaged with the guide channel 20. Other locating
means or keying systems could likewise be utilized if so desired
to facilitate proper positioning of the filter member 40 within
the guide channel 20.
[0026] Although FIGS. 1-4 illustrate the use of a single guide
channel 20 extending annularly around a portion of the bottom surface
30 of the filter holder member 12, other formations and shapes of
guide channels are within the spirit and scope of the present invention.
For example, two guide channels on opposite sides of the filter
holder member 12 may suffice for engaging the water filter member
40. In fact, any plurality of spaced guide channels positioned and
located around the periphery of the filter holder member 12 may
be utilized so long as they are positioned and located to slidably
receive the filter frame member 42. The shape, configuration, and
size of the guide channels are not important so long as the guide
channels are shaped and sized so as to cooperatively receive the
correspondingly shaped water filter member 40. The only limitation
is that a user should be able to insert and remove the water filter
member 40 from the corresponding guide channels without significant
force or resistance. Although guide channel 20 is illustrated as
being positioned and located adjacent one end portion of the filter
holder member 12, it is recognized and anticipated that the guide
channel(s) can be located anywhere within the filter holder member
12 so long as once the water filter member 40 is positioned therewithin,
the filter member 40 is positioned in communication with the brew
basket such that water flowing through the filter member will enter
the brew basket.
[0027] FIG. 5 illustrates one embodiment of the water filter member
40 which includes a filter element 50 completely encased or housed
in operative position within the frame member 42. The frame member
42 extends around the circumferential edge of the filter 50 to provide
additional support and rigidity to the filter 50. The filter 50
may be adhesively bonded, insert molded, ultrasonically welded or
otherwise permanently attached or removably attached such as by
a snap fit to the filter frame member 42. In this manner, the water
filter 50 and its associated frame member 42 comprise a single unit
which may be easily replaced when necessary. The preferred water
filter 50 is a filtering agent, such as an activated carbon, sandwiched
between two porous sheets of material. A preferred water filter
member 40 is thin, perhaps no more than a sixteenth to an eighth
of an inch in thickness. The filter 50 and its associated frame
member 42 provide a means to remove impurities from the water for
brewed beverages. If the water filter member 40 is too thick, water
will filter through the filter 50 too slowly thereby causing water
to overrun around the sides of the frame member 42.
[0028] As illustrated in FIG. 5, the filter member 40 likewise
preferably includes a grip tab 52 extending outwardly from the front
portion of the water filter member 40 so that a user may easily
grasp the filter member 40 when inserting or removing the member
from the water filter holder 12. Use of the grip tab 52 helps to
prevent a user from touching the filter media 50 when inserting
and removing the filter member 40. The grip tab 52 is molded or
otherwise attached to the filter frame member 42 such that a lip
or edge 56 is formed adjacent thereto as illustrated in FIG. 5.
The lip or edge 56 functions as part of a holding mechanism for
holding the filter member 40 within the guide channel 20 as will
be hereinafter explained. The grip tab 52 may also include one or
more rib members 54 positioned and located on at least one side
portion thereof for facilitating the gripping or grasping of the
filter member 40 by a user.
[0029] As best illustrated in FIG. 3, the bottom surface 30 of
the water filter holder member 12 includes a protruding or projecting
rib 32 extending downwardly therefrom, the projecting rib 32 being
positioned and located so as to cooperatively engage the lip or
edge 56 associated with the joinder of the grip tab 52 to filter
frame member 42. In this regard, with the lip or edge 56 positioned
towards the rib 32, as the water filter member 40 is slidably positioned
within the guide channel 20, the projecting rib 32 will interact
with and engage the edge 56 thereby temporarily preventing the water
filter unit 40 from exiting the guide channel 20 without the use
of force. In other words, the water filter member 40 will not exit
the guide channel 20 during normal use. However, when a user wants
to remove the filter member 40 from the filter holder member 12,
the user merely pulls the grip tab 52 so that the projecting rib
32 is pulled over the lip or edge 56 thereby allowing the filter
member 40 to slide out of the guide channel 20. The interaction
of the member 32 with edge 56 thereby functions as an over center
mechanism for holding the water filter member 40 in proper position
within the guide channel 20.
[0030] It is also recognized and anticipated that other cooperatively
engageable means associated with the filter holder member 12 and
the water filter member 40 could likewise be utilized for temporarily
securing the water filter member 40 within the guide channel 20.
For example, the projecting rib 32 associated with the filter holder
member 12 could merely cooperatively engage a portion of the frame
member 42 of the filter member 40, or the projecting rib 32 could
engage a protrusion or projection associated with the upper portion
of the filter frame member 42. Still further, the projecting rib
32 could likewise engage a portion of the grip tab 52, or the rib
32 could engage any one of the rib members 54 associated with the
grip tab 52. In other words, the grip tab 52 and/or the filter frame
member 42 could be configured so as to interact with the projecting
rib 32 associated with the filter holder member 12 in a wide variety
of different ways and applications. It is also recognized and anticipated
that the projecting rib 32 could be replaced with equivalent structure
or some other cooperatively engageable means for interacting with
any portion of the filter frame member 42, any portion of the filter
grip tab 52, or any other edge portion or projection associated
respectively therewith. This cooperatively engageable means need
only temporarily hold and/or secure the water filter member 40 within
the guide channel 20 of the filter holder member 12 so as to prevent
the filter member 40 from sliding out of engagement with the guide
channel 20 during normal use. Other structures and locking mechanism
can likewise be used to accomplish this task.
[0031] As best illustrated in FIGS. 1 and 2, the water filter holding
member 12 may include a date indicator 32, including a slide indicator
34, a notched arcuate member 36 extending between two spaced apart
support tabs 14, a slide groove 37, and date graduations 38 positioned
opposite the notches 39. The date graduations 38 will preferably
indicate the twelve months of the year, although other date reference
means may be utilized. When the user replaces the filter member
40, a user slides the slide indicator 34 to the proper notch 39
opposite the appropriate month or other date reference so as to
indicate either the current month or the month that the filter member
40 should be replaced. In this manner, the user is reminded when
to change the filter member 40. The slide indicator 34 is adapted
to resiliently snap into and out of the notches 39. This date indicator
mechanism is further disclosed in Applicant's co-pending U.S. patent
application Ser. No. 10/833,530.
[0032] Although it is recognized and anticipated that the various
components of the present water filter device 10 can be fabricated
from a wide variety of suitable materials, it is preferred that
the water filter holder member 12 and the filter frame member 42
be constructed of a thermoplastic material. In this regard, homopolymers,
such as polyethylene and polypropylene, are inexpensive and readily
available thermoplastics. Polypropylene is preferred over polyethylene
because of its greater resistance to deformation under conditions
of heat and stress.
[0033] Because the water filter member 40 can be easily slidably
removed and replaced within the guide channel 20 of filter holder
member 12, there is no need for a user to open and close the filter
device to change the filter element 50. A user need only purchase
a new water filter member 40 when it is necessary to replace the
existing filter member, and merely slide out the old filter member
and slide in the new filter member. The water filter holder member
12 need not be discarded and can be repeatedly used with a plurality
of new water filter members 40. As a result, replacement of the
water filter member 40 is simple and inexpensive, and it does not
require the purchase of the entire water filter device. Replacement
water filter members such as the member 40 are readily available
and use of the guide channel 20 facilitates quick and easy replacement.
[0034] Thus, there has been shown and described several embodiments
of a novel water filter device which is adaptable for use with a
wide variety of different types of brew baskets associated with
coffee makers and other brewed beverage devices, which water filter
device fulfills all of the objectives and advantages sought therefore.
Many changes, modifications, variations and other uses and applications
of the present invention will, however, become apparent to those
skilled in the art after considering this specification and the
accompanying drawings. All such drawings, modifications, variations
and other uses and applications which do not depart from the spirit
and scope of the present invention are deemed to be covered by the
present invention which is limited by the claims which follow.
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