Patent US3174680A successfully refreshed from Google Patents.
US3174680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shafting for gas compressors
Assignee: Westinghouse Electric Corp
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Filing: 1963-06-27
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Granted: 1965-03-23
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Robert R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:04
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/05; F04D29/051; F04D29/0513; F04D29/056; F04D29/057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
GAS COMPRESSOR COMPRISING A HOLOW DRIVING SHAFT, BEARINGS AROUND THE ENDS OF SAID SHAFT, A DRIVEN SHAFT WITHIN SAID DRIVING SHAFT AND HAVING ITS INNER END RIGIDLY ATTACHED TO THE INNER END OF SAID DRIVING SHAFT, THE REMAINDER OF SAID DRIVEN SHAFT BEING SPACED FROM SAID DRIVING SHAFT, SAID DRIVEN SHAFT HAVING A CYLINDRICAL ENLARGEMENT WITH AN INNER PORTION WITHIN THE OUTER END OF SAID DRIVING SHAFT AND WITH AN OUTER PORTION EXTENDING THROUGH SAID OUTER END, A COMPRESSOR ROTOR ON SAID OUTER PORTION, THERE BEING AN ANNULAR CLEARANCE SPACE BETWEEN THE OUTER SURFACE OF SAID INNER PORTION AND THE INNER SURFACE OF SAID DRIVING SHAFT WHERE IT EXTENDS AROUND SAID INNER PORTION, AND MEANS FOR SUPPLYING LUBRICANT INTO SAID CLEARANCE SPACE.
Claim 2
Dependent Claim
122 words
GAS COMPRESSOR COMPRISING A HOLOW DRIVING SHAFT, BEARINGS AROUND THE ENDS OF SAID SHAFT, A DRIVEN SHAFT WITHIN SAID DRIVING SHAFT AND HAVING ITS INNER END RIGIDLY ATTACHED TO THE INNER END OF SAID DRIVING SHAFT, THE REMAINDER OF SAID DRIVEN SHAFT BEING SPACED FROM SAID DRIVING SHAFT, SAID DRIVEN SHAFT HAVING A CYLINDRICAL ENLARGEMENT WITH AN INNER PORTION WITHIN THE OUTER END OF SAID DRIVING SHAFT AND WITH AN OUTER PORTION EXTENDING THROUGH SAID OUTER END, A COMPRESSOR ROTOR ON SAID OUTER PORTION, THERE BEING AN ANNULAR CLEARANCE SPACE BETWEEN THE OUTER SURFACE OF SAID INNER PORTION AND THE INNER SURFACE OF SAID DRIVING SHAFT WHERE IT EXTENDS AROUND SAID INNER PORTION, AND MEANS FOR SUPPLYING LUBRICANT INTO SAID CLEARANCE SPACE.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |