Patent US3281065A successfully refreshed from Google Patents.
US3281065A
Expired / Lapsed
US
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Gas compressors
Assignee: Safran Transmission Systems SAS
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Filing: 1964-09-09
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Granted: 1966-10-25
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Expires: 1984-09-09
Abstract
No abstract record available.
Inventors
- 👤 Chaffiotte Pierre Philippe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:44
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12; F15B15/125; F01; F01C; F01C9/00; F01C9/002; F04; F04B; F04B1/00; F04B1/005; F04B27/00; F04B27/02; F04B39/00; F04B39/04; F04B39/041; F04B39/044; F04B39/047; F25; F25B; F25B31/00; F04C; F04C21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A COMPRESSOR WHICH COMPRISES, IN COMBINATION, A FRAME, A FLUIDTIGHT CASING FIXED WITH RESPECT TO SAID FRAME, PROVIDED WITH A CONSTANTLY OPEN FLUID INLET, TWO TOROIDAL CYLINDERS FIXED WITHIN SAID CASING HAVING THERE RESPECTIVE WALLS LOCATED IN THE SAME TOROIDAL SURFACE, TWO CYLINDER HEADS RIGID WITH SAID CYLINDERS AT THE OUTER ENDS THEREOF, RESPECTIVELY, TWO TOROIDAL PISTONS FITTING SLIDABLY IN SAID CYLINDERS, RESPECTIVELY, AN INLET CHECK VALVE MOUNTED IN EACH OF SAID PISTONS AND ADAPTED TO OPEN FROM THE INSIDE OF SAID CASING TOWARD THE INSIDE OF THE CORRESPONDING CYLINDER, AN OUTLET CHECK VALVE MOUNTED IN EACH OF SAID CYLINDER HEADS FOR THE OUTFLOW OF FLUID FROM THE CORRESPONDING CYLINDER, A ROD INTERCONNECTING SAID TWO PISTONS, RIGIDLY FIXED THERETO, A LEVER RIGID WITH SAID ROD PIVOTED TO SAID FRAME ABOUT THE AXIS OF SAID TOROIDAL SURFACE, AND FLEXIBLE SEALING MEANS INTERCONNECTING SAID LEVER AND SAID CASING FOR SEALING SAID CASING AS SAID LEVER OSCILLATES.
Claim 2
Dependent Claim
154 words
A COMPRESSOR WHICH COMPRISES, IN COMBINATION, A FRAME, A FLUIDTIGHT CASING FIXED WITH RESPECT TO SAID FRAME, PROVIDED WITH A CONSTANTLY OPEN FLUID INLET, TWO TOROIDAL CYLINDERS FIXED WITHIN SAID CASING HAVING THERE RESPECTIVE WALLS LOCATED IN THE SAME TOROIDAL SURFACE, TWO CYLINDER HEADS RIGID WITH SAID CYLINDERS AT THE OUTER ENDS THEREOF, RESPECTIVELY, TWO TOROIDAL PISTONS FITTING SLIDABLY IN SAID CYLINDERS, RESPECTIVELY, AN INLET CHECK VALVE MOUNTED IN EACH OF SAID PISTONS AND ADAPTED TO OPEN FROM THE INSIDE OF SAID CASING TOWARD THE INSIDE OF THE CORRESPONDING CYLINDER, AN OUTLET CHECK VALVE MOUNTED IN EACH OF SAID CYLINDER HEADS FOR THE OUTFLOW OF FLUID FROM THE CORRESPONDING CYLINDER, A ROD INTERCONNECTING SAID TWO PISTONS, RIGIDLY FIXED THERETO, A LEVER RIGID WITH SAID ROD PIVOTED TO SAID FRAME ABOUT THE AXIS OF SAID TOROIDAL SURFACE, AND FLEXIBLE SEALING MEANS INTERCONNECTING SAID LEVER AND SAID CASING FOR SEALING SAID CASING AS SAID LEVER OSCILLATES.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |