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US3263440A Expired / Lapsed US ⏱️ 0.0 years remaining

Refrigeration

Assignee: Electrolux AB
•
Filing: 1964-12-14
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Granted: 1966-08-02
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Expires: 1984-12-14
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Abstract

No abstract record available.

Inventors

  • 👤 Hellstrom Axel Gosta

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 02:43
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D11/022; F25B; F25B39/00; F25B39/02; F25B39/022; F25B39/024; F25D23/00; F25D23/08; F25D23/082; F25D23/085; F25D2400/00; F25D2400/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 222 words
A REFRIGERATOR COMPRISING A CABINET HAVING A THERMALLY INSULATED INTERIOR DIVIDED INTO FIRST AND SECOND THERMALLY SEGREGATED SPACES, A COMPRESSION REFRIGERATING SYSTEM INCLUDING A COOLING UNIT DISPOSED IN THE CABINET INTERIOR WHICH IS FORMED FROM CONTACTING METAL SHEETS HAVING PASSAGE MEANS THEREBETWEEN, SAID METAL SHEETS INCLUDING A FIRST PART FORMING THE TOP, BOTTOM AND REAR WALLS OF A FIRST LOW TEMPERATURE COOLING UNIT SECTION AND A PLATELIKE SECOND PART WHICH IS ADJACENT TO SAID FIRST PART AND DEPENDS THEREFROM AND FORMS A SECOND HIGHER TEMPERATURE COOLING UNIT SECTION AND A THIRD PART COMPRISING RELATIVELY NARROW STRIP MEANS PROVIDING A RELATIVELY POOR HEAT CONDUCTIVE PATH AND CONNECTING SAID FIRST AND SECOND PARTS, SAID PASSAGE MEANS BETWEEN SAID CONTACTING METAL SHEETS PROVIDING A PATH OF FLOW FOR REFRIGERANT HAVING PORTIONS IN SAID FIRST AND SECOND COOLING UNIT SECTIONS AND SAID CONNECTING STRIP MEANS AND IN WHICH REFRIGERANT FLOWS SERIALLY THERETHROUGH, STRUCTURE INCLUDING SAID FIRST LOW TEMPERATURE COOLING UNIT SECTION PROVIDING A FREEZER COMPARTMENT IN SAID FIRST SPACE AND FROM WHICH SAID FIRST COOLING UNIT SECTION IS ARRANGED TO ABSTRACT HEAT, AND STRUCTURE COMPRISING SAID SECOND HIGHER TEMPERATURE COOLING UNIT SECTION FOR ABSTRACTING HEAT FROM SAID SECONE SPACE, SAID CONNECTING STRIP MEANS VERTICALLY OVERLAPPING AT LEAST A MAJOR PORTION OF THE REAR WALL OF SAID FIRST PART OF SAID FIRST LOW TEMPERATURE COOLING UNIT SECTION.
Claim 2
Dependent Claim 222 words
A REFRIGERATOR COMPRISING A CABINET HAVING A THERMALLY INSULATED INTERIOR DIVIDED INTO FIRST AND SECOND THERMALLY SEGREGATED SPACES, A COMPRESSION REFRIGERATING SYSTEM INCLUDING A COOLING UNIT DISPOSED IN THE CABINET INTERIOR WHICH IS FORMED FROM CONTACTING METAL SHEETS HAVING PASSAGE MEANS THEREBETWEEN, SAID METAL SHEETS INCLUDING A FIRST PART FORMING THE TOP, BOTTOM AND REAR WALLS OF A FIRST LOW TEMPERATURE COOLING UNIT SECTION AND A PLATELIKE SECOND PART WHICH IS ADJACENT TO SAID FIRST PART AND DEPENDS THEREFROM AND FORMS A SECOND HIGHER TEMPERATURE COOLING UNIT SECTION AND A THIRD PART COMPRISING RELATIVELY NARROW STRIP MEANS PROVIDING A RELATIVELY POOR HEAT CONDUCTIVE PATH AND CONNECTING SAID FIRST AND SECOND PARTS, SAID PASSAGE MEANS BETWEEN SAID CONTACTING METAL SHEETS PROVIDING A PATH OF FLOW FOR REFRIGERANT HAVING PORTIONS IN SAID FIRST AND SECOND COOLING UNIT SECTIONS AND SAID CONNECTING STRIP MEANS AND IN WHICH REFRIGERANT FLOWS SERIALLY THERETHROUGH, STRUCTURE INCLUDING SAID FIRST LOW TEMPERATURE COOLING UNIT SECTION PROVIDING A FREEZER COMPARTMENT IN SAID FIRST SPACE AND FROM WHICH SAID FIRST COOLING UNIT SECTION IS ARRANGED TO ABSTRACT HEAT, AND STRUCTURE COMPRISING SAID SECOND HIGHER TEMPERATURE COOLING UNIT SECTION FOR ABSTRACTING HEAT FROM SAID SECONE SPACE, SAID CONNECTING STRIP MEANS VERTICALLY OVERLAPPING AT LEAST A MAJOR PORTION OF THE REAR WALL OF SAID FIRST PART OF SAID FIRST LOW TEMPERATURE COOLING UNIT SECTION.

References Cited (Backward Citations)

US2310875A Cited
US2317082A Cited
US2509011A Cited
US2672028A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-08-01 1970-01-31 1970-08-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-08-01 1974-01-31 1974-08-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-08-01 1978-01-31 1978-08-02 $7700.00 Window Closed / Lapsed

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