Patent US2518049A successfully refreshed from Google Patents.
US3311045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent breather for refrigerator
Assignee: Bastian Advanced Systems Inc
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Filing: 1964-10-13
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Granted: 1967-03-28
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Anthony R Costantini
- 👤 Angelus Anthony Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:22
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/042; F25D17/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A VENTED REFRIGERATOR STRUCTURE COMPRISING IN COMBINATION: (A) A REFRIGERATOR HAVING A COOLED STORAGE COMPARTMENT WITH AN ACCESS DOOR THERETO BY MEANS OF WHICH ARTICLES TO BE COOLED MAY BE PLACED INTO AND REMOVED FROM THE COMPARTMENT, (B) A DUCT EXTENDING TRANSVERSELY THROUGH ONE WALL OF SAID REFRIGERATOR WITH THE INNER END OF SAID DUCT IN ATMOSPHERIC COMMUNICATION WITH SAID STORAGE COMPARTMENT AND WITH THE OUTER END OF SAID DUCT BEING OPENABLE TO THE ATMOSPHERE EXTERNAL TO SAID REFRIGERATOR THROUGH A VENTING DEVICE, AND (C) A PRESSURE RESPONSIVE VENTING DEVICE ACROSS SAID DUCT CARRIED BY SAID ONE WALL OF SAID REFRIGERATOR, SAID VENTING DEVICE INCLUDING PRESSURE RESPONSIVE MEANS EFFECTIVE TO AUTOMATICALLY OPEN SAID DUCT TO ATMOSPHERE ONLY WHENEVER THE INTERNAL PRESSURE IN SAID STORAGE COMPARTMENT DROPS BELOW THE ATMOSPHERIC PRESSURE EXTERNAL TO SAID REFRIGERATOR AND TO OTHERWISE CLOSE SAID DUCT AGAINST AIR FLOW BETWEEN SAID STORAGE COMPARTMENT AND SAID ATMOSPHERE.
Claim 2
Dependent Claim
150 words
A VENTED REFRIGERATOR STRUCTURE COMPRISING IN COMBINATION: (A) A REFRIGERATOR HAVING A COOLED STORAGE COMPARTMENT WITH AN ACCESS DOOR THERETO BY MEANS OF WHICH ARTICLES TO BE COOLED MAY BE PLACED INTO AND REMOVED FROM THE COMPARTMENT, (B) A DUCT EXTENDING TRANSVERSELY THROUGH ONE WALL OF SAID REFRIGERATOR WITH THE INNER END OF SAID DUCT IN ATMOSPHERIC COMMUNICATION WITH SAID STORAGE COMPARTMENT AND WITH THE OUTER END OF SAID DUCT BEING OPENABLE TO THE ATMOSPHERE EXTERNAL TO SAID REFRIGERATOR THROUGH A VENTING DEVICE, AND (C) A PRESSURE RESPONSIVE VENTING DEVICE ACROSS SAID DUCT CARRIED BY SAID ONE WALL OF SAID REFRIGERATOR, SAID VENTING DEVICE INCLUDING PRESSURE RESPONSIVE MEANS EFFECTIVE TO AUTOMATICALLY OPEN SAID DUCT TO ATMOSPHERE ONLY WHENEVER THE INTERNAL PRESSURE IN SAID STORAGE COMPARTMENT DROPS BELOW THE ATMOSPHERIC PRESSURE EXTERNAL TO SAID REFRIGERATOR AND TO OTHERWISE CLOSE SAID DUCT AGAINST AIR FLOW BETWEEN SAID STORAGE COMPARTMENT AND SAID ATMOSPHERE.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |