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US3305162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Motors Liquidation Co
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Filing: 1964-07-27
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Granted: 1967-02-21
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter B Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:48
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F1/00; F24F1/02; F24F1/022; F24F1/027; F24F11/00; F24F11/70; F24F11/72; F24F11/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN AIR FLOW ARRANGEMENT INCLUDING A PARTITION WALL HAVING A FIRST OPENING THEREIN, A CENTRIFUGAL FAN HAVING ITS AXIS SUBSTANTIALLY PARALLEL TO AND SUBSTANTIALLY SPACED FROM SAID WALL AND HAVING ITS PERIPHERY ADJACENT SAID OPENING AND POSITIONED TO DISCHARGE AIR THROUGH SAID OPENING AND PREPONDERANTLY IN ONE DIRECTION GENERALLY PARALLEL TO SAID WALL, SAID WALL HAVING A SECOND OPENING SPACED FROM SAID FIRST OPENING AND ALIGNED WITH SAID FIRST OPENING, A DOOR FOR CLOSING SAID SECOND OPENING, AND SELECTIVE MEANS FOR LIFTING THE EDGE OF THE DOOR NEAREST SAID FIRST OPENING AWAY FROM SAID PARTITION WALL TO PRESENT THE DOOR AS A SCOOP EXTENDING INTO THE PATH OF THE AIR DISCHARGED FROM THE PERIPHERY OF SAID CENTRIFUGAL FAN TO CAUSE SOME OF THE AIR DISCHARGED TO FLOW THROUGH SAID SECOND OPENING, SAID SELECTIVE MEANS ALSO INCLUDING MEANS FOR LIFTING THE EDGE OF THE DOOR FARTHEST FROM SAID OPENING AWAY FROM
Claim 2
Dependent Claim
150 words
AN AIR FLOW ARRANGEMENT INCLUDING A PARTITION WALL HAVING A FIRST OPENING THEREIN, A CENTRIFUGAL FAN HAVING ITS AXIS SUBSTANTIALLY PARALLEL TO AND SUBSTANTIALLY SPACED FROM SAID WALL AND HAVING ITS PERIPHERY ADJACENT SAID OPENING AND POSITIONED TO DISCHARGE AIR THROUGH SAID OPENING AND PREPONDERANTLY IN ONE DIRECTION GENERALLY PARALLEL TO SAID WALL, SAID WALL HAVING A SECOND OPENING SPACED FROM SAID FIRST OPENING AND ALIGNED WITH SAID FIRST OPENING, A DOOR FOR CLOSING SAID SECOND OPENING, AND SELECTIVE MEANS FOR LIFTING THE EDGE OF THE DOOR NEAREST SAID FIRST OPENING AWAY FROM SAID PARTITION WALL TO PRESENT THE DOOR AS A SCOOP EXTENDING INTO THE PATH OF THE AIR DISCHARGED FROM THE PERIPHERY OF SAID CENTRIFUGAL FAN TO CAUSE SOME OF THE AIR DISCHARGED TO FLOW THROUGH SAID SECOND OPENING, SAID SELECTIVE MEANS ALSO INCLUDING MEANS FOR LIFTING THE EDGE OF THE DOOR FARTHEST FROM SAID OPENING AWAY FROM
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |