US3128609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerated enclosure
Assignee: Dual Jet Refrigeration Co
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Filing: 1962-05-31
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Granted: 1964-04-14
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Beckwith Sterling
- 👤 Vogel Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:23
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/04; A47F3/0439; A47F3/0443; A47F3/0447; F; F25; F25D; F25D21/00; F25D21/06; F25D21/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
210 words
IN A REFRIGERATED ENCLOSURE OF THE TYPE WHICH DEFINES AN ACCESS OPENING IN ONE WALL COMMUNICATING THE OTHERWISE ENCLOSED SPACED WITH THE AMBIENT ATMOSPHERE, AND WHICH IS PROVIDED WITH AT LEAST ONE INNER COLD AIR INLET AND AT LEAST ONE OUTER WARMER AIR INLET, AT LEAST ONE INNER COLD AIR NOZZLE AND AT LEAST ONE OUTER WARMER AIR NOZZLE, SAID INLET EXTENDING IN SIDE-BY-SIDE RELATIONSHIP ACROSS AN OPPOSITE EDGE OF SAID ACCESS OPENING, PASSAGES COMMUNICATING EACH OF THE CORRESPONDING INLETS AND NOZZLES, CIRCULATING MEANS IN AT LEAST SOME OF THE PASSAGES FOR FORCING AIR THROUGH THE PASSAGES AND IN THE FORM OF PANELS ACROSS SAID ACCESS OPENING AND REFRIGERATION MEANS DISPOSED IN AT LEAST SOME OF SAID PASSAGES AND ADAPTED TO REFRIGERATE AT LEAST THE INNERMOST OF SAID PANELS, THE IMPROVEMENT COMPRISING SCREENING MEANS EXTENDING SUBSTANTIALLY COMPLETELY ACROSS SAID INLET TO IMPEDE ENTRANCE OF FOREIGN MATERIAL INTO SAID PASSAGES, THE SCREENING MEANS COVERING AT LEAST THE INNERMOST ONE OF SAID COLD AIR INLETS BEING PROVIDED WITH HEATING MEANS WHEREBY THE TEMPERATURE OF THIS SCREENING MEANS IS ADAPTED TO BE MADE HIGHER THAN THE TEMPERATURE OF THE AIR PANEL ENTERING THE COLD AIR INLET, SAID LAST MENTIONED SCREENING MEANS CONTACTING SUBSTANTIALLY ALL OF THE COLD AIR PASSING THROUGH ITS ASSOCIATED INLET.
Claim 2
Dependent Claim
210 words
IN A REFRIGERATED ENCLOSURE OF THE TYPE WHICH DEFINES AN ACCESS OPENING IN ONE WALL COMMUNICATING THE OTHERWISE ENCLOSED SPACED WITH THE AMBIENT ATMOSPHERE, AND WHICH IS PROVIDED WITH AT LEAST ONE INNER COLD AIR INLET AND AT LEAST ONE OUTER WARMER AIR INLET, AT LEAST ONE INNER COLD AIR NOZZLE AND AT LEAST ONE OUTER WARMER AIR NOZZLE, SAID INLET EXTENDING IN SIDE-BY-SIDE RELATIONSHIP ACROSS AN OPPOSITE EDGE OF SAID ACCESS OPENING, PASSAGES COMMUNICATING EACH OF THE CORRESPONDING INLETS AND NOZZLES, CIRCULATING MEANS IN AT LEAST SOME OF THE PASSAGES FOR FORCING AIR THROUGH THE PASSAGES AND IN THE FORM OF PANELS ACROSS SAID ACCESS OPENING AND REFRIGERATION MEANS DISPOSED IN AT LEAST SOME OF SAID PASSAGES AND ADAPTED TO REFRIGERATE AT LEAST THE INNERMOST OF SAID PANELS, THE IMPROVEMENT COMPRISING SCREENING MEANS EXTENDING SUBSTANTIALLY COMPLETELY ACROSS SAID INLET TO IMPEDE ENTRANCE OF FOREIGN MATERIAL INTO SAID PASSAGES, THE SCREENING MEANS COVERING AT LEAST THE INNERMOST ONE OF SAID COLD AIR INLETS BEING PROVIDED WITH HEATING MEANS WHEREBY THE TEMPERATURE OF THIS SCREENING MEANS IS ADAPTED TO BE MADE HIGHER THAN THE TEMPERATURE OF THE AIR PANEL ENTERING THE COLD AIR INLET, SAID LAST MENTIONED SCREENING MEANS CONTACTING SUBSTANTIALLY ALL OF THE COLD AIR PASSING THROUGH ITS ASSOCIATED INLET.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |