US3282064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant regeneration and purification as applied to cryogenic closedcycle systems
Assignee: Raytheon Co
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Filing: 1965-06-29
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Granted: 1966-11-01
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Expires: 1985-06-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Cowans
- 👤 John B Glode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:13
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/14; F25J; F25J3/00; F25J3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A CLOSED-CYCLE REFRIGERATOR EMPLOYING A REFRIGERATING FLUID, A CLOSED HOUSING DEFINING A FIRST CYLINDER AND A SECOND CYLINDER, SAID CYLINDERS HAVING LONGITUDINAL AXES IN ANGULAR RELATO EACH OTHER, MOVABLE PISTONS DISPOSED IN THE CYLINDERS AND DEFINING THEREWITH A WORK VOLUME COMPRISING COMPRESSION AND EXPANSION CHAMBERS, SAID WORK VOLUME INCLUDING PASSAGE MEANS INTERCONNECTING THE CHAMBERS, A ROTATABLE CRANKSHAFT OPERATIVELY CONNECTED TO THE RESPECTIVE PISTONS TO INDUCE RECIPROCATION THEREOF IN A PREDETERMINED PHASE RELATIONSHIP BETWEEN THE PISTONS WHEREBY REFRIGERATING FLUID IS SEQUENTIALLY TRANSFERRED BETWEEN THE CHAMBERS, SAID HOUSING FURTHER DEFINING A CRANKCASE VOLUME COMMUNICATING WITH THE CYLINDERS AND ON THE SIDES OF THE RESPECTIVE PISTONS REMOTE FROM SAID CHAMBERS,
Claim 2
Dependent Claim
108 words
IN A CLOSED-CYCLE REFRIGERATOR EMPLOYING A REFRIGERATING FLUID, A CLOSED HOUSING DEFINING A FIRST CYLINDER AND A SECOND CYLINDER, SAID CYLINDERS HAVING LONGITUDINAL AXES IN ANGULAR RELATO EACH OTHER, MOVABLE PISTONS DISPOSED IN THE CYLINDERS AND DEFINING THEREWITH A WORK VOLUME COMPRISING COMPRESSION AND EXPANSION CHAMBERS, SAID WORK VOLUME INCLUDING PASSAGE MEANS INTERCONNECTING THE CHAMBERS, A ROTATABLE CRANKSHAFT OPERATIVELY CONNECTED TO THE RESPECTIVE PISTONS TO INDUCE RECIPROCATION THEREOF IN A PREDETERMINED PHASE RELATIONSHIP BETWEEN THE PISTONS WHEREBY REFRIGERATING FLUID IS SEQUENTIALLY TRANSFERRED BETWEEN THE CHAMBERS, SAID HOUSING FURTHER DEFINING A CRANKCASE VOLUME COMMUNICATING WITH THE CYLINDERS AND ON THE SIDES OF THE RESPECTIVE PISTONS REMOTE FROM SAID CHAMBERS,
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |