US3277668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed liquid circuit for a combined refrigeration and air conditioning system
Assignee: Individual
•
Filing: 1964-09-14
•
Granted: 1966-10-11
•
Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Victor C Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:59
CPC Classifications
F; F25; F25B; F25B13/00; F24; F24F; F24F3/00; F24F3/001; F25D; F25D17/00; F25D17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A CLOSED LIQUID STORAGE AND RE-CIRCULATING SYSTEM FOR SIMULTANEOUSLY SERVING REFRIGERATION UNITS AND AIR CONDITIONING MEANS, A LIQUID STORAGE TANK INSULATED FROM ATMOSPHERIC TEMPERATURE CHANGES, A LIQUID DELIVERY LINE LEADING FROM SAID STORAGE TANK, A LIQUID CIRCULATIONG PUMP OPERATIVELY CONNECTED WITH SAID DELIVERY LINE, MEANS FOR DISCONNECTING SAID PUMP AND FOR SHUTTING OFF SAID DELIVERY LINE, A LIQUID SUPPLY HEADER CONNECTED WITH SAID DELIVERY LINE BEYOND SAID PUMP, A REFRIGERATION UNIT INCLUDING A HEAT TRANSFER CHAMBER, A BRANCH LINE FROM SAID SUPPLY HEADER CONNECTED WITH SAID TRANSFER CHAMBER, A DISCHARGE LINE LEADING FROM SAID TRANSFER CHAMBER, AIR CONDITIONING MEANS, A SECOND BRANCH LINE FROM SAID SUPPLY HEADER CONNECTED WITH SAID AIR CONDITIONING MEANS, A RETURN LINE FROM SAID AIR CONDITIONING MEANS, MEANS FOR
Claim 2
Dependent Claim
124 words
IN A CLOSED LIQUID STORAGE AND RE-CIRCULATING SYSTEM FOR SIMULTANEOUSLY SERVING REFRIGERATION UNITS AND AIR CONDITIONING MEANS, A LIQUID STORAGE TANK INSULATED FROM ATMOSPHERIC TEMPERATURE CHANGES, A LIQUID DELIVERY LINE LEADING FROM SAID STORAGE TANK, A LIQUID CIRCULATIONG PUMP OPERATIVELY CONNECTED WITH SAID DELIVERY LINE, MEANS FOR DISCONNECTING SAID PUMP AND FOR SHUTTING OFF SAID DELIVERY LINE, A LIQUID SUPPLY HEADER CONNECTED WITH SAID DELIVERY LINE BEYOND SAID PUMP, A REFRIGERATION UNIT INCLUDING A HEAT TRANSFER CHAMBER, A BRANCH LINE FROM SAID SUPPLY HEADER CONNECTED WITH SAID TRANSFER CHAMBER, A DISCHARGE LINE LEADING FROM SAID TRANSFER CHAMBER, AIR CONDITIONING MEANS, A SECOND BRANCH LINE FROM SAID SUPPLY HEADER CONNECTED WITH SAID AIR CONDITIONING MEANS, A RETURN LINE FROM SAID AIR CONDITIONING MEANS, MEANS FOR
References Cited (Backward Citations)
US2167878A
Cited
US3036441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |