US3236064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption refrigeration system
Assignee: Whirlpool Corp
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Filing: 1964-05-26
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Granted: 1966-02-22
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Expires: 1984-05-26
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Whitlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:50
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/02; F25B15/04; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
IN AN ABSORPTION REFRIGERATION SYSTEM CHARGED WITH REFRIGERANT AND ABSORPTION LIQUID, APPARATUS COMPRISING: A HEATED GENERATOR MEANS FOR GENERATING GASEOUS REFRIGERANT FROM A LIQUID COMPRISING SAID REFRIGERANT AND ABSORPTION LIQUID AND PRODUCING A RESULTING WEAK LIQUID; A PAIR OF HEAT EXCHANGERS EACH HAVING A RICH LIQUID PASSAGE AND A WEAK LIQUID PASSAGE; MEANS FOR DIRECTING SAID LIQUID TO SAID GENERATOR THROUGH SAID PAIR OF RICH LIQUID HEAT EXCHANGER PASSAGES IN SERIES; ABSORBING MEANS; AND MEANS FOR DIRECTING SAID WEAK LIQUID FROM SAID GENERATOR THROUGH SAID PAIR OF WEAK LIQUID HEAT EXCHANGER PASSAGES IN SERIES, ONE OF SAID WEAK LIQUID HEAT EXCHANGER PASSAGES COMPRISING PART OF SAID ABSORPTION MEANS AND CONTAINING GASEOUS REFRIGERANT IN ABSORPTION CONTACT WITH SAID WEAK LIQUID.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |