Patent US3229895A successfully refreshed from Google Patents.
US3229895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means of loading and controlling reciprocating expansion engines
Assignee: Ingersoll Rand Co
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Filing: 1964-09-29
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Granted: 1966-01-18
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Expires: 1984-09-29
Abstract
No abstract record available.
Inventors
- 👤 Irving P West
- 👤 William T Alderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:28
CPC Classifications
F; F02; F02G; F02G3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A COMPRESSED GAS SYSTEM: (A) A CONSTANT SPEED COMPRESSOR HAVING AN INLET TO RECEIVE GAS TO BE COMPRESSED AND A DISCHARGE TO PROVIDE A CONSTANT FLOW OF COMPRESSED GAS AT CONSTANT PREDETERMINED PRESSURE AND TEMPERATURE, (B) A CONSTANT TORQUE VARIABLE LOAD EXPANSION ENGINE MEANS HAVING AN INLET TO RECEIVE WASTE COMPRESSED GAS AND AN OUTLET FOR WASTE GAS AFTER ITS HAS EXPANDED, (C) COMPRESSION MEANS DRIVEN BY THE EXPANSION ENGINE MEANS HAVING AN INLET TO RECEIVE GAS TO BE COMPRESSED AND A DISCHARGE CONNECTED TO THE COMPRESSOR DISCHARGE TO PROVIDE COMPRESSED GAS TO THE COMPRESSED GAS FROM THE COMPRESSOR TO FORM THE CONSTANT COMPRESSED GAS FLOW, (D) THE COMPRESSOR HAVING MEANS FOR VARYING THE CAPACITY OF GAS IT COMPRESSES, AND (E) SENSING MEANS CONNECTED TO THE DISCHARGE OF THE COMPRESSION MEANS AND TO THE CAPACITY VARYING MEANS FOR SENSING FLOW OF OF COMPRESSED GAS FROM THE COMPRESSION MEANS AND FOR CONTROLLING THE CAPACITY VARYING MEANS IN RESPONSE THERETO.
Claim 2
Dependent Claim
159 words
IN A COMPRESSED GAS SYSTEM: (A) A CONSTANT SPEED COMPRESSOR HAVING AN INLET TO RECEIVE GAS TO BE COMPRESSED AND A DISCHARGE TO PROVIDE A CONSTANT FLOW OF COMPRESSED GAS AT CONSTANT PREDETERMINED PRESSURE AND TEMPERATURE, (B) A CONSTANT TORQUE VARIABLE LOAD EXPANSION ENGINE MEANS HAVING AN INLET TO RECEIVE WASTE COMPRESSED GAS AND AN OUTLET FOR WASTE GAS AFTER ITS HAS EXPANDED, (C) COMPRESSION MEANS DRIVEN BY THE EXPANSION ENGINE MEANS HAVING AN INLET TO RECEIVE GAS TO BE COMPRESSED AND A DISCHARGE CONNECTED TO THE COMPRESSOR DISCHARGE TO PROVIDE COMPRESSED GAS TO THE COMPRESSED GAS FROM THE COMPRESSOR TO FORM THE CONSTANT COMPRESSED GAS FLOW, (D) THE COMPRESSOR HAVING MEANS FOR VARYING THE CAPACITY OF GAS IT COMPRESSES, AND (E) SENSING MEANS CONNECTED TO THE DISCHARGE OF THE COMPRESSION MEANS AND TO THE CAPACITY VARYING MEANS FOR SENSING FLOW OF OF COMPRESSED GAS FROM THE COMPRESSION MEANS AND FOR CONTROLLING THE CAPACITY VARYING MEANS IN RESPONSE THERETO.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |