US3086476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pumps
Assignee: American Thermocatalytic Corp
•
Filing: 1959-09-17
•
Granted: 1963-04-23
•
Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Weiss Gerhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:24
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F01C1/352; F01C21/00; F01C21/10; F01C21/104; F01C21/106; F04; F04C; F04C15/00; F04C15/0003; F04C15/0007; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A PUMP COMPRISING A LONGITUDINALLY EXTENDING STATOR HAVING AT LEAST A PART-CYLINDRICAL PERIPHERY, A SHAFT AXIALLY CO-INCIDENT WITH THE AXIS OF SAID CYLINDRICAL PORTION OF SAID PERIPHERY, AT LEAST ONE RADIALLY AND LONGITUDINALLY EXTENDING FLAT THIN BLADE WITHIN SAID STATOR MOUNTED ON SAID SHAFT, MEANS ROTATING SAID SHAFT ABOUT ITS AXIS, THE FREE END OF SAID BLADE WHEN PASSING THE CYLINDRICAL PORTION OF SAID PERIPHERY BEING SEPARATED THEREFROM BY A SMALL CLEARANCE GAP, AN ADHESIVE BASE ON SAID CYLINDRICAL PORTION OF SAID PERIPHERY, FIBERS ADHERINGLY EMBEDDED IN SAID ADHESIVE BASE AND PROJECTING DENSELY THEREFROM TOWARDS SAID AXIS TO A DISTANCE SEVERAL TIMES THE GAP DISTANCE BETWEEN SAID CYLINDRICAL PORTION OF SAID PERIPHERY AND SAID FREE END OF SAID BLADE, AND MEANS RECEIVED AND HELD BY SAID FIBERS TO WHICH THE FREE ENDS OF SAID FIBERS ADHERE WHEN BENT BY SAID BLADE SO AS TO INDUCE BY THE ACTION OF SAID BLADE MATTING OF SAID FIBERS INTO A PERMANENTLY FORMED SMOOTH CYLINDRICAL SURFACE WITH MINIMAL CLEARANCE BETWEEN SAID FORMED SURFACE AND SAID FREE END OF SAID BLADE.
Claim 2
Dependent Claim
176 words
A PUMP COMPRISING A LONGITUDINALLY EXTENDING STATOR HAVING AT LEAST A PART-CYLINDRICAL PERIPHERY, A SHAFT AXIALLY CO-INCIDENT WITH THE AXIS OF SAID CYLINDRICAL PORTION OF SAID PERIPHERY, AT LEAST ONE RADIALLY AND LONGITUDINALLY EXTENDING FLAT THIN BLADE WITHIN SAID STATOR MOUNTED ON SAID SHAFT, MEANS ROTATING SAID SHAFT ABOUT ITS AXIS, THE FREE END OF SAID BLADE WHEN PASSING THE CYLINDRICAL PORTION OF SAID PERIPHERY BEING SEPARATED THEREFROM BY A SMALL CLEARANCE GAP, AN ADHESIVE BASE ON SAID CYLINDRICAL PORTION OF SAID PERIPHERY, FIBERS ADHERINGLY EMBEDDED IN SAID ADHESIVE BASE AND PROJECTING DENSELY THEREFROM TOWARDS SAID AXIS TO A DISTANCE SEVERAL TIMES THE GAP DISTANCE BETWEEN SAID CYLINDRICAL PORTION OF SAID PERIPHERY AND SAID FREE END OF SAID BLADE, AND MEANS RECEIVED AND HELD BY SAID FIBERS TO WHICH THE FREE ENDS OF SAID FIBERS ADHERE WHEN BENT BY SAID BLADE SO AS TO INDUCE BY THE ACTION OF SAID BLADE MATTING OF SAID FIBERS INTO A PERMANENTLY FORMED SMOOTH CYLINDRICAL SURFACE WITH MINIMAL CLEARANCE BETWEEN SAID FORMED SURFACE AND SAID FREE END OF SAID BLADE.
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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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |