Patent US5067627A successfully refreshed from Google Patents.
US5067627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee filter dispenser
Assignee: Individual
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Filing: 1991-01-23
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Granted: 1991-11-26
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Expires: 2011-01-23
Abstract
Abstract A first embodiment of a coffee filter dispenser has a housing in which a stack of coffee filters to be dispensed are received. A plurality of resilient grippers are axially movable between a retracted and an extended position. A crank arm is connected to the resilient grippers for actuation thereof. By manipulation of the crank arm in axial and rotary directions, a single coffee filter may be dispensed from a stack of coffee filters through resilient plastic flaps in the housing. In a second embodiment, a coffee filter dispenser utilizes an axially reciprocal and rotary plunger having an adhesive foot for removing the top filter from a stack of coffee filters. The adhesive foot is radially offset from the plunger axis, and a spiral cam groove on the plunger causes the foot to be displaced radially as the plunger moves axially. In this manner, a single coffee filter may be laterally dispensed through a pivotal door in the dispenser housing.
Inventors
- 👤 Michael L. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:07
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/06; A47J31/08
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
72 words
A new and improved coffee filter dispenser, comprising: housing means; door means in said housing means; means for holding a stack of nested coffee filters in said housing; plunger means mounted for axial and rotary motion, extending through said housing means; and means for engaging a top filter of said stack of nested coffee filters, attached to said plunger means, whereby a single coffee filter may be dispensed through said door means.
Claim 2
Dependent Claim
72 words
A new and improved coffee filter dispenser, comprising: housing means; door means in said housing means; means for holding a stack of nested coffee filters in said housing; plunger means mounted for axial and rotary motion, extending through said housing means; and means for engaging a top filter of said stack of nested coffee filters, attached to said plunger means, whereby a single coffee filter may be dispensed through said door means.
Claim 3
Dependent Claim
23 words
The coffee filter dispenser of claim 1, wherein said door means comprises a pair of flexible plastic flaps attached to said housing means.
Claim 4
Dependent Claim
23 words
The coffee filter dispenser of claim 1, wherein said holding means comprises a support platform having a plurality of upwardly extending rubber pips.
Claim 5
Dependent Claim
30 words
The coffee filter dispenser of claim 1, wherein said holding means comprises a spring biased support platform for holding a stack of nested coffee filters at a constant vertical position.
Claim 6
Dependent Claim
41 words
The coffee filter dispenser of claim 1, wherein said holding means comprises a spring biased platform having a plurality of upwardly extending rubber pips for engaging a stack of nested coffee filters and maintaining the stack at a constant vertical position.
Claim 7
Dependent Claim
29 words
The coffee filter dispenser of claim 1, where said engaging means comprises a plurality of resilient grippers for surrounding a top filter of a stack of nested coffee filters.
Claim 8
Dependent Claim
52 words
The coffee filter dispenser of claim 6, wherein said resilient grippers are surrounded by a cam sleeve for allowing said resilient grippers to extend radially as they are moved axially out of said cam sleeve and for radially retracting said resilient grippers as they are moved axially upwards into said cam sleeve.
Claim 9
Dependent Claim
22 words
The coffee filter dispenser of claim 6, wherein said resilient grippers are each provided with a prong for engaging a coffee filter.
Claim 10
Dependent Claim
27 words
The coffee filter dispenser of claim 1, wherein a crank arm having a handle is attached to said plunger means for axially and rotationally displacing said plunger.
Claim 11
Dependent Claim
18 words
The coffee filter dispenser of claim 9, wherein said crank arm is biased axially upwardly by a spring.
Claim 12
Dependent Claim
20 words
The coffee filter dispenser of claim 1, wherein said engaging means comprises an adhesive foot attached to said plunger means.
Claim 13
Dependent Claim
41 words
The coffee filter dispenser of claim 1, wherein said plunger means is provided with a spiral groove and said housing is provided with a cam pin engaging said spiral groove whereby said plunger means is rotated as it is displaced axially.
Claim 14
Dependent Claim
19 words
The coffee filter dispenser of claim 12, wherein a spring is provided for biasing said plunger means axially upwardly.
Claim 15
Dependent Claim
20 words
The coffee filter dispenser of claim 1, wherein said door means comprises a door pivotally attached to said housing means.
Claim 16
Dependent Claim
35 words
The coffee filter dispenser of claim 1, wherein said holding means comprises a plurality of resilient plastic grippers attached to a bottom interior surface of said housing for holding a stack of nested coffee filters.
Claim 17
Dependent Claim
33 words
The coffee filter dispenser of claim 15, wherein said holding means further comprises an adhesive element attached to a bottom interior surface of said housing and arranged centrally of said resilient plastic grippers.
Claim 18
Dependent Claim
24 words
The coffee filter dispenser of claim 1, wherein a stripper ring surrounds said plunger means for disengaging a coffee filter from said plunger means.
Claim 19
Dependent Claim
162 words
A new and improved coffee filter dispenser, comprising: a housing; a loading door in said housing for inserting a stack of nested coffee filters into an interior of said housing; a dispensing door comprising a pair of flexible plastic flaps in said housing; a platform base attached to a bottom interior surface of said housing; a filter support platform supported by a spring on said platform base; a plurality of rubber pips on an upper surface of said support platform; a cam sleeve stationarily mounted on an upper surface of said housing and extending downwardly within said housing; a plurality of resilient grippers each having a filter engaging prong extending downwardly through said cam sleeve; a plunger extending into said cam sleeve and connected to said resilient grippers; a crank arm connected to said plunger; a coil spring surrounding said plunger and upwardly biasing said crank arm; and a handle connected to said crank arm for rotating and axially moving said plunger.
Claim 20
Dependent Claim
162 words
A new and improved coffee filter dispenser, comprising: a housing; a loading door in said housing for inserting a stack of nested coffee filters into an interior of said housing; a dispensing door comprising a pair of flexible plastic flaps in said housing; a platform base attached to a bottom interior surface of said housing; a filter support platform supported by a spring on said platform base; a plurality of rubber pips on an upper surface of said support platform; a cam sleeve stationarily mounted on an upper surface of said housing and extending downwardly within said housing; a plurality of resilient grippers each having a filter engaging prong extending downwardly through said cam sleeve; a plunger extending into said cam sleeve and connected to said resilient grippers; a crank arm connected to said plunger; a coil spring surrounding said plunger and upwardly biasing said crank arm; and a handle connected to said crank arm for rotating and axially moving said plunger.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-25 | 1995-05-27 | 1995-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-25 | 1999-05-27 | 1999-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-25 | 2003-05-27 | 2003-11-26 | $7700.00 | Window Closed / Lapsed |