US3299665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purge system for refrigeration apparatus
Assignee: Borg Warner Corp
•
Filing: 1965-09-30
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Granted: 1967-01-24
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Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 Leonard A Rezin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:02
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/04; F25B43/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PURGE SYSTEM FOR EXHAUSTING NON-CONDENSIBLE GASES FROM THE ABSORBER IN AN ABSORPTION REFRIGERATION MACHINE, SAID PURGE SYSTEM COMPRISING A VACUUM SOURCE OPERATIVE TO INDUCE NON-CONDENSIBLE GASES FROM SAID ABSORBER; A FIRST CONDUIT CONNECTING SAID VACUUM SOURCE TO A ZONE ABOVE THE MINIMUM CAPACITY SOLUTION LEVEL IN SAID ABSORBER, BUT BELOW THE SHORT-TERM SHUT-DOWN SOLUTION LEVEL; SECOND CONDUIT MEANS CONNECTING SAID VACUUM SOURCE TO A ZONE IN SAID ABSORBER ABOVE THE LONG-TERM SHUT-DOWN SOLUTION LEVEL; VALVE MEANS FOR CONTROLLING FLOW OF NON-CONDENSIBLE GASES THROUGH SAID SECOND CONDUIT MEANS; AND MEANS FOR OPERATING SAID VALVE MEANS IN RESPONSE TO CHANGES IN THE SOLUTION LEVEL IN SAID ABSORBER TO PERMIT THE FLOW OF NON-CONDENSIBLE GASES
Claim 2
Dependent Claim
113 words
A PURGE SYSTEM FOR EXHAUSTING NON-CONDENSIBLE GASES FROM THE ABSORBER IN AN ABSORPTION REFRIGERATION MACHINE, SAID PURGE SYSTEM COMPRISING A VACUUM SOURCE OPERATIVE TO INDUCE NON-CONDENSIBLE GASES FROM SAID ABSORBER; A FIRST CONDUIT CONNECTING SAID VACUUM SOURCE TO A ZONE ABOVE THE MINIMUM CAPACITY SOLUTION LEVEL IN SAID ABSORBER, BUT BELOW THE SHORT-TERM SHUT-DOWN SOLUTION LEVEL; SECOND CONDUIT MEANS CONNECTING SAID VACUUM SOURCE TO A ZONE IN SAID ABSORBER ABOVE THE LONG-TERM SHUT-DOWN SOLUTION LEVEL; VALVE MEANS FOR CONTROLLING FLOW OF NON-CONDENSIBLE GASES THROUGH SAID SECOND CONDUIT MEANS; AND MEANS FOR OPERATING SAID VALVE MEANS IN RESPONSE TO CHANGES IN THE SOLUTION LEVEL IN SAID ABSORBER TO PERMIT THE FLOW OF NON-CONDENSIBLE GASES
References Cited (Backward Citations)
US2344245A
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US2733575A
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US2760350A
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US2940273A
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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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |