US3190227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid device
Assignee: Marquardt Corp
•
Filing: 1964-09-04
•
Granted: 1965-06-22
•
Expires: 1984-09-04
Abstract
No abstract record available.
Inventors
- 👤 Clifford B Davids
- 👤 Roland H Thorsell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:26
CPC Classifications
F; F01; F01C; F01C11/00; F01C11/002; F01C1/00; F01C1/30; F01C1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A FLUID DEVICE COMPRISING: A DEFORMABLE TUBE SUPPORTED BY A DIAPHRAGM ABOUT ITS PERIPHERY AT A LOCATION INTERMEDIATE THE ENDS THEREOF, SAID DIAPHRAGM SEPARATING SAID TUBE INTO FIRST AND SECOND END PORTIONS TERMINATING IN FIRST AND SECOND TUBE ENDS; THE DEFORMATION OF SAID FIRST END PORTIONS RESULTING IN THE SAME DEFORMATION OF SAID SECOND END PORTION BUT WITH A PHASE DIFFERENCE OF 90 DEGREES; ROTATABLE DRIVE MEANS HAVING A DEFORMED DRIVE MEMBER LOCATED WITHIN SAID FIRST END OF SAID FIRST TUBE PORTION FOR PROGRESSIVELY DEFORMING SAID FIRST END PORTION; FLUID CAVITY MEANS RECEIVING SAID SECOND END PORTION OF
Claim 2
Dependent Claim
98 words
A FLUID DEVICE COMPRISING: A DEFORMABLE TUBE SUPPORTED BY A DIAPHRAGM ABOUT ITS PERIPHERY AT A LOCATION INTERMEDIATE THE ENDS THEREOF, SAID DIAPHRAGM SEPARATING SAID TUBE INTO FIRST AND SECOND END PORTIONS TERMINATING IN FIRST AND SECOND TUBE ENDS; THE DEFORMATION OF SAID FIRST END PORTIONS RESULTING IN THE SAME DEFORMATION OF SAID SECOND END PORTION BUT WITH A PHASE DIFFERENCE OF 90 DEGREES; ROTATABLE DRIVE MEANS HAVING A DEFORMED DRIVE MEMBER LOCATED WITHIN SAID FIRST END OF SAID FIRST TUBE PORTION FOR PROGRESSIVELY DEFORMING SAID FIRST END PORTION; FLUID CAVITY MEANS RECEIVING SAID SECOND END PORTION OF
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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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |