Patent US3097359A successfully refreshed from Google Patents.
US3097359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial compressor
Assignee: —
•
Filing: —
•
Granted: 1963-07-09
•
Expires: 1980-07-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:38
CPC Classifications
F; F04; F04C; F04C18/00; F04C18/08; F04C18/12; F04C18/14; F04C18/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN ELASTIC FLUID COMPRESSOR OF THE SCREW ROTOR TYPE, COMPRISING A CASING HAVING PARALLEL INTERSECTING BORES WITH INLET AND DISCHARGE PASSAGES AT OPPOSITE ENDS THEREOF, INTERENGAGING MALE AND FEMALE ROTORS IN SAID BORES AND PROVIDING A DIRECT DRIVE THEREBETWEEN, A DRIVE SHAFT ROTATABLY MOUNTED AT THE INLET END OF THE CASING, A HELICAL DRIVE GEAR FIXED TO SAID DRIVE SHAFT AND ROTATED THEREBY, EACH OF SAID ROTORS HAVING A SHAFT EXTENDING AT EACH ROTOR END, A HELICAL DRIVEN GEAR ON THE MALE ROTOR SHAFT AT THE INLET END OF THE CASING AND IN MESH WITH SAID DRIVE GEAR WHEREIN THE HELIX ANGLE OF THE GEAR TEETH ACTS TO PRODUCE AXIAL THRUST TOWARD THE DISCHARGE END, STRAIGHT RADIAL LOAD BEARINGS ON SAID SHAFT AT BOTH THE INLET AND DISCHARGE ENDS OF THE CASING, AND AN ADDITIONAL BEARING ON A SHAFT OF EACH ROTOR TO COUNTERACT THRUST IN THE DIRECTION OF THE CASING INLET END.
Claim 2
Dependent Claim
153 words
AN ELASTIC FLUID COMPRESSOR OF THE SCREW ROTOR TYPE, COMPRISING A CASING HAVING PARALLEL INTERSECTING BORES WITH INLET AND DISCHARGE PASSAGES AT OPPOSITE ENDS THEREOF, INTERENGAGING MALE AND FEMALE ROTORS IN SAID BORES AND PROVIDING A DIRECT DRIVE THEREBETWEEN, A DRIVE SHAFT ROTATABLY MOUNTED AT THE INLET END OF THE CASING, A HELICAL DRIVE GEAR FIXED TO SAID DRIVE SHAFT AND ROTATED THEREBY, EACH OF SAID ROTORS HAVING A SHAFT EXTENDING AT EACH ROTOR END, A HELICAL DRIVEN GEAR ON THE MALE ROTOR SHAFT AT THE INLET END OF THE CASING AND IN MESH WITH SAID DRIVE GEAR WHEREIN THE HELIX ANGLE OF THE GEAR TEETH ACTS TO PRODUCE AXIAL THRUST TOWARD THE DISCHARGE END, STRAIGHT RADIAL LOAD BEARINGS ON SAID SHAFT AT BOTH THE INLET AND DISCHARGE ENDS OF THE CASING, AND AN ADDITIONAL BEARING ON A SHAFT OF EACH ROTOR TO COUNTERACT THRUST IN THE DIRECTION OF THE CASING INLET END.
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |