US3096932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pump
Assignee: Individual
•
Filing: 1960-11-22
•
Granted: 1963-07-09
•
Expires: 1980-11-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel W Traylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:09
CPC Classifications
F; F04; F04C; F04C5/00; F04C18/00; F04C18/30; F04C18/40; F04C18/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
IN A ROTARY FLUID PUMP, AN IRREGULARLY SHAPED CLOSED CASING, SAID CASING HAVING A SMOOTHLY-FINISHED CONTINUOUSLY CURVED INTERIOR SURFACE, A ROTOR MOUNTED IN SAID CASING, A PLURALITY OF VANES MOUNTED ON SAID ROTOR FOR ROTATION THEREWITH WITH THE FREE ENDS THEREOF IN CONTINUING SEALING CONTACT WITH THE INTERIOR SURFACE OF SAID CASING ON ROTATION OF SAID ROTOR, THE OUTER PERIPHERY OF SAID ROTOR AND THE INTERIOR SURFACE OF SAID CASING DEFINING THEREBETWEEN A PLURALITY OF CHAMBERS, SAID VANES BEING ELASTICALLY DEFORMABLE VANES OF A LENGTH EXCEEDING THE MAXIMUM RADIAL WIDTH OF SAID CHAMBER, SAID VANES BEING ELASTICALLY DEFORMED BY SAID CASING INTO CONTINUING BIASING CONTACT WITH SAID CASING INTERIOR SURFACE, EACH OF SAID VANES BEING IN OVERLAPPING RELATION WITH AT LEAST ONE PRECEDING VANE, AND EACH OF SAID VANES HAVING AT LEAST ONE OUTWARLDY-DIRECTED AXIALLY-EXTENDING STEP THEREON TO PROVIDE CLEARANCE FOR A PRECEDING OVERLAPPED VANE WHEN SAID VANES PASS THROUGH THE REGION OF MINIMUM CASING DIAMETER, FLUID INLET AND OUTLET MEANS ENTERING SAID CASING AND OPENING INTO SAID
Claim 2
Dependent Claim
168 words
IN A ROTARY FLUID PUMP, AN IRREGULARLY SHAPED CLOSED CASING, SAID CASING HAVING A SMOOTHLY-FINISHED CONTINUOUSLY CURVED INTERIOR SURFACE, A ROTOR MOUNTED IN SAID CASING, A PLURALITY OF VANES MOUNTED ON SAID ROTOR FOR ROTATION THEREWITH WITH THE FREE ENDS THEREOF IN CONTINUING SEALING CONTACT WITH THE INTERIOR SURFACE OF SAID CASING ON ROTATION OF SAID ROTOR, THE OUTER PERIPHERY OF SAID ROTOR AND THE INTERIOR SURFACE OF SAID CASING DEFINING THEREBETWEEN A PLURALITY OF CHAMBERS, SAID VANES BEING ELASTICALLY DEFORMABLE VANES OF A LENGTH EXCEEDING THE MAXIMUM RADIAL WIDTH OF SAID CHAMBER, SAID VANES BEING ELASTICALLY DEFORMED BY SAID CASING INTO CONTINUING BIASING CONTACT WITH SAID CASING INTERIOR SURFACE, EACH OF SAID VANES BEING IN OVERLAPPING RELATION WITH AT LEAST ONE PRECEDING VANE, AND EACH OF SAID VANES HAVING AT LEAST ONE OUTWARLDY-DIRECTED AXIALLY-EXTENDING STEP THEREON TO PROVIDE CLEARANCE FOR A PRECEDING OVERLAPPED VANE WHEN SAID VANES PASS THROUGH THE REGION OF MINIMUM CASING DIAMETER, FLUID INLET AND OUTLET MEANS ENTERING SAID CASING AND OPENING INTO SAID
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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 |