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US4368625A Expired / Lapsed US ⏱️ 0.0 years remaining

Refrigeration apparatus having item thawing means

Assignee: Whirlpool Corp
•
Filing: 1981-09-03
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Granted: 1983-01-18
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Expires: 2001-09-03
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Abstract

Abstract A refrigeration apparatus having item thawing means wherein items normally stored in a freezer compartment of the apparatus are automatically transferred to an above-freezing temperature refrigerator compartment seriatim for dispensing thereof in a thawed condition. In the illustrated embodiment, the items are food items. The food items are stored in a rack within the freezer compartment and are dispensed through an opening in the wall between the freezer and refrigerator compartments automatically as a result of the removal of a food item previously delivered to the refrigerator compartment for thawing therein. The automatic movement of the food items is effected by gravity. Structure is provided for cooperating with the food items in the communicating passage for effectively closing the passage against airflow between the compartments.

Inventors

  • 👤 Clark I. Platt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 07:31
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/82; F; F25; F25D; F25D11/00; F25D11/02; F25D25/00; F25D2331/00; F25D2331/80; F25D2331/805

Claims Analysis

Total Claims: 26
Claim 1
Independent Claim 229 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refrigerated to an above-freezing temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below-freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; storage means in said freezer compartment and having a lower end opening into said passage means, said storage means being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; and receiving means adjacent said passage means and exposed to the above-freezing temperature of the refrigerator compartment, including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said storage means being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said storage means for automatic replacement of the removed food item in said receiving means.
Claim 2
Dependent Claim 229 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refrigerated to an above-freezing temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below-freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; storage means in said freezer compartment and having a lower end opening into said passage means, said storage means being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; and receiving means adjacent said passage means and exposed to the above-freezing temperature of the refrigerator compartment, including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said storage means being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said storage means for automatic replacement of the removed food item in said receiving means.
Claim 3
Dependent Claim 33 words
The refrigeration apparatus of claim 1 wherein said storage means comprises an open support providing substantial exposure of the food item stored therein directly to the below-freezing temperature air of the freezer compartment.
Claim 4
Dependent Claim 14 words
The refrigeration apparatus of claim 1 wherein said storage means comprises an open rack.
Claim 5
Dependent Claim 31 words
The refrigeration apparatus of claim 1 wherein said passage means is arranged to be effectively blocked against air movement therethrough by at least one of said food items to be dispensed.
Claim 6
Dependent Claim 21 words
The refrigeration apparatus of claim 1 wherein said storage means is arranged to store the food items in vertically stacked association.
Claim 7
Dependent Claim 259 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refrigerated to an above-freezing temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below-freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; storage means in said freezer compartment and having a lower end opening into said passage means, said storage means being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; receiving means adjacent said passage means and exposed to the above-freezing temperature of the refrigerator compartment, including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said storage means being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said storage means for automatic replacement of the removed food item in said receiving means; and sealing means for releasably engaging at least one food item at said passage to define therewith a closure means extending across said passage effectively blocking air movement through said passage.
Claim 8
Dependent Claim 259 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refrigerated to an above-freezing temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below-freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; storage means in said freezer compartment and having a lower end opening into said passage means, said storage means being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; receiving means adjacent said passage means and exposed to the above-freezing temperature of the refrigerator compartment, including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said storage means being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said storage means for automatic replacement of the removed food item in said receiving means; and sealing means for releasably engaging at least one food item at said passage to define therewith a closure means extending across said passage effectively blocking air movement through said passage.
Claim 9
Dependent Claim 16 words
The refrigeration apparatus of claim 6 wherein said sealing means is mounted to said passage means.
Claim 10
Dependent Claim 15 words
The refrigeration apparatus of claim 6 wherein said sealing means is disposed within said passage.
Claim 11
Dependent Claim 26 words
The refrigeration apparatus of claim 6 wherein said said sealing means comprises means resiliently biased to engage said at least one food item within said passage.
Claim 12
Dependent Claim 15 words
The refrigeration apparatus of claim 6 wherein said sealing means comprises resiliently compressible foam pad.
Claim 13
Dependent Claim 21 words
The refrigeration apparatus of claim 6 wherein said sealing means comprises at least one closure element movably mounted within said passage.
Claim 14
Dependent Claim 41 words
The refrigeration apparatus of claim 6 wherein said sealing means comprises at least one closure element movably mounted within said passage and resilient means for urging said closure element into engagement with said at least one food item within said passage.
Claim 15
Dependent Claim 245 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refrigerated to an above-freezing temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below-freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; storage means in said freezer compartment and having a lower end opening into said passage means, said storage means being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; receiving means adjacent said passage means and exposed to the above-freezing temperature of the refrigerator compartment, including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said storage means being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said storage means for automatic replacement of the removed food item in said receiving means; and air flow control means for causing the passage to be effectively blocked against air movement therethrough.
Claim 16
Dependent Claim 245 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refrigerated to an above-freezing temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below-freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; storage means in said freezer compartment and having a lower end opening into said passage means, said storage means being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; receiving means adjacent said passage means and exposed to the above-freezing temperature of the refrigerator compartment, including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said storage means being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said storage means for automatic replacement of the removed food item in said receiving means; and air flow control means for causing the passage to be effectively blocked against air movement therethrough.
Claim 17
Dependent Claim 36 words
The refrigeration apparatus of claim 13 wherein said air flow control means comprises means for selectively extending across the passage for effectively blocking air flow therethrough in the absence of a food item at said passage.
Claim 18
Dependent Claim 48 words
The refrigeration apparatus of claim 13 wherein said air flow control means comprises closure means movably mounted to said passage and means for biasing said closure means to extend across said passage for effectively blocking air flow therethrough in the absence of a food item at said passage.
Claim 19
Dependent Claim 18 words
The refrigeration apparatus of claim 13 wherein said insulated wall is horizontal and said passage opens vertically therethrough.
Claim 20
Dependent Claim 23 words
The refrigeration apparatus of claim 13 wherein said insulated wall is vertical and said passage opens therethrough at an angle to the vertical.
Claim 21
Dependent Claim 244 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refigerated to an above-freezing low temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; a storage rack in said freezer compartment and having a lower end opening into said passage means, said rack being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; receiving means disposed in the refrigerator compartment adjacent said passage means and including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said rack being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said rack for automatic replacement of the removed food item in said receiving means; and yieldable means engaging a food item in said passage for cooperating therewith to block air flow through said passage.
Claim 22
Dependent Claim 244 words
In a refrigeration apparatus having means defining a freezer compartment refrigerated to a below-freezing temperature, a refrigerator compartment refigerated to an above-freezing low temperature, and an insulated wall separating said compartments, means for thawing food items normally stored at below freezing temperatures in said below-freezing compartment prior to removal thereof from said apparatus for use at above-freezing temperatures, said thawing means comprising: passage means defining a passage through said insulated wall for passing said food items seriatim therethrough; a storage rack in said freezer compartment and having a lower end opening into said passage means, said rack being arranged to hold a plurality of said food items for gravitational movement downwardly toward said lower end; receiving means disposed in the refrigerator compartment adjacent said passage means and including means for receiving and retaining for user access at least one of said food items delivered to said passage means to be thawed by the exposure thereof to said above-freezing temperature, the remaining food items in said rack being releasably retained against downward gravitational movement by said at least one food item retained by said receiving means, the removal of a food item from said receiving means by the user permitting gravitational downward movement of a food item from those stored in said rack for automatic replacement of the removed food item in said receiving means; and yieldable means engaging a food item in said passage for cooperating therewith to block air flow through said passage.
Claim 23
Dependent Claim 28 words
The refrigeration apparatus of claim 18 wherein said yieldable means comprises flap means extending from said passage means into releasable engagement with said food item in the passage.
Claim 24
Dependent Claim 36 words
The refrigeration apparatus of claim 19 wherein said passage defines a pair of opposed, facing recesses and said flap means comprises a resilient pivotally mounted flap disposed in each recess and biased outwardly across said passage.
Claim 25
Dependent Claim 22 words
The refrigeration apparatus of claim 18 wherein said yieldable means comprises compressible pad means resiliently engaging said food item in the passage.
Claim 26
Dependent Claim 25 words
The refrigeration apparatus of claim 21 wherein said pad means effectively defines a resilient inner surface along at least a portion of said passage means.

References Cited (Backward Citations)

US2671001A Cited
US2826471A Cited
US2903315A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-01-17 1986-07-19 1987-01-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-01-17 1990-07-19 1991-01-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-01-17 1994-07-19 1995-01-18 $7700.00 Window Closed / Lapsed

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