US4783971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator drain pan apparatus
Assignee: Maytag Corp
•
Filing: 1988-02-08
•
Granted: 1988-11-15
•
Expires: 2008-02-08
Abstract
Abstract Refrigerator drain pan apparatus including a pair of spaced mounting brackets having longitudinal guide slots for receiving in sliding engagement the longitudinal rims of the drain pan. The brackets also have clamps for securely engaging gripper pads on the rims of the drain pan at the operating position for eliminating vibration noise. The guide slots include a rim support shelf and a parallel top panel space thereabove. Forward extending ramps guide the drain pan rims up into the guide slots. The clamps include V-shaped tabs positioned in front and back of the guide slots, which tabs extend below the plane of the top panel and engage the gripper pads in an interference fit at the operating position. The pan also has bumpers protruding from the rims to engage the front V-shaped path at the operating position of the drain pan thereby providing a stop. An upward cone in the pan bottom provides a drip area for incoming water.
Inventors
- 👤 Donald Alba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:59
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/14; F25B; F25B2500/00; F25B2500/12; F25D2321/00; F25D2321/14; F25D2321/143; F25D2321/144; F25D2321/1442; F25D2400/00; F25D2400/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
96 words
Apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls, a back wall, and a front wall; and means for supporting said drain pan in an elevated operating position for receiving said water formed by said defrost cycle, said supporting means comprising guide slots for slidably removing and replacing said drain pan, said supporting means further comprising means for preventing vibration noise from said drain pan in said operating position, said preventing means comprising means for clamping said drain pan to said supporting means.
Claim 2
Dependent Claim
96 words
Apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls, a back wall, and a front wall; and means for supporting said drain pan in an elevated operating position for receiving said water formed by said defrost cycle, said supporting means comprising guide slots for slidably removing and replacing said drain pan, said supporting means further comprising means for preventing vibration noise from said drain pan in said operating position, said preventing means comprising means for clamping said drain pan to said supporting means.
Claim 3
Dependent Claim
31 words
The apparatus recited in claim 1 wherein said drain pan further comprises rims extending outwardly from said side walls, said guide slots being adapted for receiving said rims in sliding engagement.
Claim 4
Dependent Claim
27 words
The apparatus recited in claim 1 further comprising a stop for preventing said drain pan from being slid in said guide slots back past said operating position.
Claim 5
Dependent Claim
129 words
Apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls, a back wall, and a front wall; means for supporting said drain pan in an elevated operating position for receiving said water formed by said defrost cycle, said supporting means comprising guide slots for slidably removing and replacing said drain pan, said supporting means further comprising means for clamping said drain pan in said operating position for preventing vibration noise; said drain pan further comprising rims extending outwardly from said side walls, said guide slots being adapted for receiving said rims in sliding engagement; and said rims having pads and said clamping means comprising means for engaging said pans in an interference fit at said operating position.
Claim 6
Dependent Claim
129 words
Apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls, a back wall, and a front wall; means for supporting said drain pan in an elevated operating position for receiving said water formed by said defrost cycle, said supporting means comprising guide slots for slidably removing and replacing said drain pan, said supporting means further comprising means for clamping said drain pan in said operating position for preventing vibration noise; said drain pan further comprising rims extending outwardly from said side walls, said guide slots being adapted for receiving said rims in sliding engagement; and said rims having pads and said clamping means comprising means for engaging said pans in an interference fit at said operating position.
Claim 7
Dependent Claim
134 words
Apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls, a back wall, and a front wall; means for supporting said drain pan in an elevated operating position for receiving said water formed by said defrost cycle, said supporting means comprising guide slots for slidably removing and replacing said drain pan, said supporting means further comprising means for clamping said drain pan in said operating position for preventing vibration noise; and a drain hose for directing said water to said drain pan, said bottom of said drain pan having an upward protrusion directly below the outlet of said drain hose wherein water dripping from said drain hose drips onto said protrusion and then runs down into water collected in said drain pan.
Claim 8
Dependent Claim
134 words
Apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls, a back wall, and a front wall; means for supporting said drain pan in an elevated operating position for receiving said water formed by said defrost cycle, said supporting means comprising guide slots for slidably removing and replacing said drain pan, said supporting means further comprising means for clamping said drain pan in said operating position for preventing vibration noise; and a drain hose for directing said water to said drain pan, said bottom of said drain pan having an upward protrusion directly below the outlet of said drain hose wherein water dripping from said drain hose drips onto said protrusion and then runs down into water collected in said drain pan.
Claim 9
Dependent Claim
135 words
Drain pan apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls having outwardly extending lips with raised pads, a back wall and a front wall; and a pair of spaced parallel longitudinal brackets for supporting said drain pan in an operating position for collecting said water, each of said brackets comprising a guide slot comprising a horizontal shelf for supporting a respective one of said lips in slidable engagement wherein said drain pan can be removed and replaced from said brackets by longitudinally sliding said lips of said pan along said horizontal shelf, each of said brackets further comprising clamps for engaging said pads in an interference fit in said operating position for preventing vibration noise between said pan and said brackets.
Claim 10
Dependent Claim
135 words
Drain pan apparatus for collecting water formed by melting ice during a refrigerator defrost cycle, comprising: a drain pan comprising a bottom, side walls having outwardly extending lips with raised pads, a back wall and a front wall; and a pair of spaced parallel longitudinal brackets for supporting said drain pan in an operating position for collecting said water, each of said brackets comprising a guide slot comprising a horizontal shelf for supporting a respective one of said lips in slidable engagement wherein said drain pan can be removed and replaced from said brackets by longitudinally sliding said lips of said pan along said horizontal shelf, each of said brackets further comprising clamps for engaging said pads in an interference fit in said operating position for preventing vibration noise between said pan and said brackets.
Claim 11
Dependent Claim
23 words
The apparatus recited in claim 6 wherein each of said guide slots further comprises a flap panel horizontally spaced above said horizontal shelf.
Claim 12
Dependent Claim
25 words
The apparatus recited in claim 7 wherein said clamps comprise forward and rearward V-shaped tabs having nadirs positioned below the plane of said flap panel.
Claim 13
Dependent Claim
55 words
The apparatus recited in claim 8 wherein said drain pan further comprises bumpers on said lips, said bumpers being positioned for contacting said forward V-shaped tabs at the operating position of said drain pan for providing a stop to prevent said drain pan from being slid inwardly on said horizontal shelves past said operating position.
Claim 14
Dependent Claim
29 words
The apparatus recited in claim 6 further comprising a downwardly inclined ramp extending forward from each of said horizontal shelves for guiding said lips up into said guide slots.
Claim 15
Dependent Claim
34 words
The apparatus recited in claim 6 wherein said drain pan further comprises a cone for providing a drip area for said water which is above the level of water collected in said drain pan.
Claim 16
Dependent Claim
22 words
The apparatus recited in claim 6 wherein said brackets suspend said drain pan in an elevated position with an air gap underneath.
References Cited (Backward Citations)
US2021065A
Cited
US2293210A
Cited
US2723533A
Cited
US4121878A
Cited
US4108519A
Cited
US4241668A
Cited
US4440461A
Cited
US4729613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |