US3277660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-phase ejector refrigeration system
Assignee: JOSEPH KAYE AND CO Inc
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Filing: 1965-12-13
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Granted: 1966-10-11
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Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Kemper
- 👤 George F Harper
- 👤 George A Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
F; F25; F25B; F25B41/00; F25B1/00; F25B1/06; F25B2309/00; F25B2309/06; F25B2341/00; F25B2341/001; F25B2341/0012; F25B9/00; F25B9/002; F25B9/008
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A PROCESS FOR COMPRESSING A VAPOR STREAM WHICH PROCESS COMPRISES: PRODUCING A LIQUID REFRIGERANT STREAM OF A RELATIVELY HIGH PRESSURE; INCREASING THE VELOCITY OF A VAPOR REFRIGERANT STREAM; INCREASING THE VELOCITY OF THE PRESSURIZED LIQUID REFRIGERANT STREAM AND FORMING A SUPERSONIC VELOCITY TWOPHASE VAPOR-LIQUID REFRIGERANT STREAM THEREFROM; MIXING THE TWO-PHASE VAPOR-LIQUID REFRIGERANT STREAM WITH THE INCREASED VELOCITY VAPOR REFRIGERANT STREAM; AND DECREASING THE VELOCITY OF THE MIXED STREAMS TO A VELOCITY AT WHICH THE TEMPERATURE OF THE MIXED STREAMS IS GREATER THAN THE TEMPERATURE OF THE VAPOR REFRIGERANT STREAM BEFORE ITS INCREASE IN VELOCITY.
References Cited (Backward Citations)
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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) | 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 |