US3316728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption refrigeration systems
Assignee: Individual
•
Filing: 1965-12-23
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Granted: 1967-05-02
•
Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Wendell J Biermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:08
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/02; F25B15/06; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
AN ABSORPTION REFRIGERATION SYSTEM COMPRISING AN EVAPORATOR, AN ABSORBER, A GENERATOR, AND A CONDENSER CONNECTED TO PROVIDE REFRIGERATION; SAID SYSTEM INCLUDING A REFRIGERANT, AND AN ABSORBENT SOLUTION FOR ABSORBING SAID REFRIGERANT; WHEREIN THE IMPROVEMENT COMPRISES: SAID ABSORBENT SOLUTION COMPRISING AN AQUEOUS SOLUTION INCLUDING A FIRST MATERIAL COMPRISING A LITHIUM SALT OF AN OXYACID SELECTED FROM THE GROUP CONSISTING OF LITHIUM CHLORATE, LITHIUM NITRATE, AND LITHIUM NITRITE, DISSOLVED IN SAID SOLUTION IN AN AMOUNT IN EXCESS OF ONE MOLE PERCENT; AND A SECOND MATERIAL COMPRISING A LITHIUM HALIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF LITHIUM BROMIDE AND LITHIUM CHLORIDE, DISSOLVED IN SAID SOLUTION AN AMOUNT IN EXCESS OF ONE MOLE PERCENT.
Claim 2
Dependent Claim
111 words
AN ABSORPTION REFRIGERATION SYSTEM COMPRISING AN EVAPORATOR, AN ABSORBER, A GENERATOR, AND A CONDENSER CONNECTED TO PROVIDE REFRIGERATION; SAID SYSTEM INCLUDING A REFRIGERANT, AND AN ABSORBENT SOLUTION FOR ABSORBING SAID REFRIGERANT; WHEREIN THE IMPROVEMENT COMPRISES: SAID ABSORBENT SOLUTION COMPRISING AN AQUEOUS SOLUTION INCLUDING A FIRST MATERIAL COMPRISING A LITHIUM SALT OF AN OXYACID SELECTED FROM THE GROUP CONSISTING OF LITHIUM CHLORATE, LITHIUM NITRATE, AND LITHIUM NITRITE, DISSOLVED IN SAID SOLUTION IN AN AMOUNT IN EXCESS OF ONE MOLE PERCENT; AND A SECOND MATERIAL COMPRISING A LITHIUM HALIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF LITHIUM BROMIDE AND LITHIUM CHLORIDE, DISSOLVED IN SAID SOLUTION AN AMOUNT IN EXCESS OF ONE MOLE PERCENT.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |