Patent US4603558A successfully refreshed from Google Patents.
US4603558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receptacle for mounting in a freezer for assisting in the defrosting thereof
Assignee: Individual
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Filing: 1984-03-28
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Granted: 1986-08-05
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Expires: 2004-03-28
Abstract
Abstract A container or receptacle for a freezer comprises a flexible polymeric material having the shape and contour of the freezer and is adapted to be inserted into and attached to the freezer which may then be used in a conventional manner. Frost builds up on the container rather than on the walls of the freezer. To defrost the freezer, the contents are removed, and the container is removed and replaced with another container; or the removed container is flexed to remove the frost therefrom, and replaced in the freezer.
Inventors
- 👤 Michael J. McAdams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:54
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D21/00; F25D21/06; F25D2400/00; F25D2400/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
106 words
Refrigeration defrosting apparatus comprising cooling means having a surface adapted to have its temperature lowered by a refrigeration process, liner means removably mounted adjacent said cooling means and having a first surface snugly conformable to said cooling means surface and an opposite surface adapted to receive frost resulting from said lowered temperature, and means for removably connecting said liner means to said cooling means, said liner means substantially covering said cooling means surface to prevent communication between said cooling means surface and ambient air, whereby ice resulting from condensation of water vapor in the ambient air is formed on said opposite surface of said liner means.
Claim 2
Dependent Claim
106 words
Refrigeration defrosting apparatus comprising cooling means having a surface adapted to have its temperature lowered by a refrigeration process, liner means removably mounted adjacent said cooling means and having a first surface snugly conformable to said cooling means surface and an opposite surface adapted to receive frost resulting from said lowered temperature, and means for removably connecting said liner means to said cooling means, said liner means substantially covering said cooling means surface to prevent communication between said cooling means surface and ambient air, whereby ice resulting from condensation of water vapor in the ambient air is formed on said opposite surface of said liner means.
Claim 3
Dependent Claim
16 words
Refrigeration apparatus according to claim 1 wherein said liner means is formed from a polymer film.
Claim 4
Dependent Claim
21 words
Refrigeration apparatus according to claim 2 wherein said polymer film is selected from the group consisting of polythene, polypropylene, and polyvinylchloride.
Claim 5
Dependent Claim
56 words
Refrigeration apparatus according to claim 1 wherein said cooling means is in the shape of a storage chest and said cooling means surface is an inner surface of said chest adapted to maintain at a subambient temperature articles stored therein, and said liner conforms substantially to the shape of said cooling means for receiving said articles.
Claim 6
Dependent Claim
32 words
Refrigeration apparatus according to claim 1 wherein said cooling means includes a ferrous element and said connecting means comprises a magnet mounted on said liner means for attraction to said ferrous element.
Claim 7
Dependent Claim
24 words
Refrigeration apparatus according to claim 5 wherein said connecting means comprises a plurality of disc magnets set into a seam on said liner means.
Claim 8
Dependent Claim
19 words
Refrigeration apparatus according to claim 5 wherein said connecting means comprises a magnetic strip mounted on said liner means.
Claim 9
Dependent Claim
26 words
Refrigeration apparatus according to claim 1 wherein said connecting means comprises an elastic band mounted on said cooling means and adapted to circumscribe said liner means.
Claim 10
Dependent Claim
37 words
Refrigeration apparatus according to claim 1 wherein said connecting means comprises a deposit of an adhesive on an outer surface of said liner means adapted to engage said cooling means when said liner means is mounted thereon.
Claim 11
Dependent Claim
25 words
Refrigeration apparatus according to claim 9 wherein said liner means comprises a plurality of adhesive strips mounted in spaced relationship on the outer surface thereof.
Claim 12
Dependent Claim
26 words
Refrigeration apparatus according to claim 1 wherein said liner means has an aperture adjacent a corner thereof adapted to overlie a corner of said cooling means.
Claim 13
Dependent Claim
45 words
Refrigeration apparatus according to claim 1 wherein the cooling surface of said cooling means is an outer surface and said liner means has an interior surface shaped to conform to said cooling means outer surface when said liner means is inserted on said cooling means.
Claim 14
Dependent Claim
28 words
Refrigeration apparatus according to claim 12 wherein said cooling means comprises a coil and said liner means comprises a bag adapted to be snugly received on said coil.
References Cited (Backward Citations)
US2612761A
Cited
US2986014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |