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US4368622A Expired / Lapsed US ⏱️ 0.0 years remaining

Refrigerator with through-the-door quick-chilling service

Assignee: General Electric Co
•
Filing: 1981-05-14
•
Granted: 1983-01-18
•
Expires: 2001-05-14
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Abstract

Abstract A refrigerator including a freezer compartment with a quick-chilling chamber having a first container section with a door for access to the interior of the container section from outside the freezer compartment and a second air-duct section. There is airflow communication between the first container section and freezer compartment, airflow communication between the second air-duct section and freezer compartment and airflow communication between the first and second sections near the top thereof. There is also provided means for moving air from the freezer compartment in a path through one section and the other section of the quick-chilling chamber and back into the freezer compartment for a selectable period of time. Thermal insulation is provided between the quick-chilling chamber and the freezer compartment.

Inventors

  • 👤 Robert B. Brooks

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 04:31
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D23/00; F25D23/02; F25D23/12; F25D2317/00; F25D2317/06; F25D2317/061; F25D2317/062; F25D2331/00; F25D2331/80; F25D2331/803; F25D2400/00; F25D2400/06; F25D2400/28

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 135 words
Refrigerator apparatus comprising: (a) a freezer compartment, (b) a quick-chilling chamber in association with the freezer compartment and having a first container section from outside the freezer compartment and a second air duct section, (c) air flow communication means between the first container section and freezer compartment, air flow communication means between the second air duct section and freezer compartment and air flow communication means between the first and second sections near the top thereof, (d) means for moving air from the freezer compartment in a path through one section then the other section of the quick-chilling chamber and back into the freezer compartment for a selectable period of time, (e) settable timing means to start and stop the means for moving air, and (f) thermal insulation between the quick-chilling chamber and the freezer compartment.
Claim 2
Dependent Claim 135 words
Refrigerator apparatus comprising: (a) a freezer compartment, (b) a quick-chilling chamber in association with the freezer compartment and having a first container section from outside the freezer compartment and a second air duct section, (c) air flow communication means between the first container section and freezer compartment, air flow communication means between the second air duct section and freezer compartment and air flow communication means between the first and second sections near the top thereof, (d) means for moving air from the freezer compartment in a path through one section then the other section of the quick-chilling chamber and back into the freezer compartment for a selectable period of time, (e) settable timing means to start and stop the means for moving air, and (f) thermal insulation between the quick-chilling chamber and the freezer compartment.
Claim 3
Dependent Claim 30 words
The refrigerator apparatus of claim 1 wherein the air flow communication means includes an air entrance opening and an air outlet opening with both openings located below the thermal insulation.
Claim 4
Dependent Claim 38 words
The refrigerator apparatus of claim 1 wherein the air flow path entering the quick-chilling chamber enters the first container section from the freezer compartment and is discharged from the second air duct section back into the freezer compartment.
Claim 5
Dependent Claim 17 words
The refrigerator aparatus of claim 1 wherein the air flow means is an electric motor driven blower.
Claim 6
Dependent Claim 48 words
The refrigerator of claim 4 wherein the blower is located at the bottom of the second air duct section and arranged to move air in a path from the freezer compartment into the first container section and from the second air duct section back into the freezer compartment.
Claim 7
Dependent Claim 41 words
The refrigerator apparatus of claim 1 wherein the quick-chilling chamber is thermally insulated such that when the means for moving the air in a path is inoperative, the temperature of the first container section rises and is maintained at above-freezing temperatures.
Claim 8
Dependent Claim 42 words
The refrigerator apparatus of claim 1 wherein means is provided for separating air flowing into the quick-chilling chamber and air flowing from the quick-chilling chamber back into the freezer compartment is separated to prevent substantial mixing of the entering and exiting air.
Claim 9
Dependent Claim 46 words
The refrigerator apparatus of claim 1 wherein the freezer compartment has an access door and the quick-chilling chamber is located on the interior of the access door and moveable with the door and the first container section access door is secured to the freezer compartment door.
Claim 10
Dependent Claim 37 words
The refrigerator apparatus of claim 1 wherein the first container section has an open grid support member and the thermal insulation between the quick-chilling chamber and the freezer compartment extends at least down to the support member.
Claim 11
Dependent Claim 221 words
Refrigerator apparatus comprising: (a) a freezer compartment, (b) a quick-chilling chamber in association with the freezer compartment and having a first container section with a door for access to the interior of the container section from the outside the freezer compartment and a second air duct section separated from the first section by apartition, (c) air flow communication means between the first container section and freezer compartment, air flow communication means between the second air duct section and freezer compartment, and air flow communication means through the partition between the first and second sections near the top thereof above the air flow communication means between the first container section and freezer compartment and the air flow communication means between the second air duct section and freezer compartment, (d) an electric motor-driven blower located near the bottom of the air duct section for moving air from the freezer compartment in a path through the first container section, the partition, and the second air duct section and back into the freezer compartment for a selectable period of time, (e) settable timing means to start and stop the blower, and (f) thermal insulation between the quick-chilling compartment and the freezer compartment such that when the electric motor-driven blower is inoperative, the temperature of the first container section rises and is maintained at above-freezing temperatures.
Claim 12
Dependent Claim 221 words
Refrigerator apparatus comprising: (a) a freezer compartment, (b) a quick-chilling chamber in association with the freezer compartment and having a first container section with a door for access to the interior of the container section from the outside the freezer compartment and a second air duct section separated from the first section by apartition, (c) air flow communication means between the first container section and freezer compartment, air flow communication means between the second air duct section and freezer compartment, and air flow communication means through the partition between the first and second sections near the top thereof above the air flow communication means between the first container section and freezer compartment and the air flow communication means between the second air duct section and freezer compartment, (d) an electric motor-driven blower located near the bottom of the air duct section for moving air from the freezer compartment in a path through the first container section, the partition, and the second air duct section and back into the freezer compartment for a selectable period of time, (e) settable timing means to start and stop the blower, and (f) thermal insulation between the quick-chilling compartment and the freezer compartment such that when the electric motor-driven blower is inoperative, the temperature of the first container section rises and is maintained at above-freezing temperatures.

References Cited (Backward Citations)

US2021096A Cited
US2677241A Cited
US2656688A Cited
US2728203A Cited
US3218111A Cited
US3225564A Cited
US3243972A Cited
US3411312A Cited
US3638717A Cited
US3659429A Cited
US3747361A Cited
US3745786A Cited
US3759053A 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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