US3337878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial heart cycling system
Assignee: Iowa State University Research Foundation Inc
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Filing: 1964-10-15
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Granted: 1967-08-29
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Expires: 1984-10-15
Abstract
No abstract record available.
Inventors
- 👤 Victor W Bolie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:22
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/196; A61M60/40; A61M60/424; A61M60/427; A61M60/50; A61M60/508; A61M60/80; A61M60/855; A61M60/89; A61M60/894; A61M60/892
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
ARTIFICAL HEART ENERGY-SUPPLY APPARATUS COMPRISING AN ARTIFICAL HEART, A MULTI-PORT VALVE EQUIPPED WITH A SPOOL ARRANGED FOR MOVEMENT BETWEEN TWO POSITIONS, THE ARTIFICAL HEAT CONNECTED TO ONE OF SAID PORTS, AN EXPANSIBLE RESERVOIR CONNECTED TO ANOTHER OF SAID PORTS, TWO OTHER PORTS BEING COUPLED TO SOURCES OF COMPRESSIBLE PRESSURE FLUID AND SUCTION, RESPECTIVELY, SAID SPOOL IN ONE POSITION COUPLING SAID COMPRESSIBLE FLUID PRESSURE SOURCE WITH SAID RESERVOIR AND SAID ARTIFICIAL HEART WITH SAID SUCTION SOURCE, THE OTHER POSITION OF SAID SPOOL COUPLING SAID ARTIFICAL HEART WITH SAID RESERVOIR WHILE BLOCKING FLUID PRESSURE FLOW RELATIVE TO SAID SOURCES, AND ELECTROMECHANICAL MEANS FOR POSITIONING SAID SPOOL, SAID POSITIONING MEANS IN THE ABSENCE OF ENERGIZATION THEREOF BEING ARRANGED TO MAINTAIN SAID SPOOL IN SAID ONE POSITION.
Claim 2
Dependent Claim
123 words
ARTIFICAL HEART ENERGY-SUPPLY APPARATUS COMPRISING AN ARTIFICAL HEART, A MULTI-PORT VALVE EQUIPPED WITH A SPOOL ARRANGED FOR MOVEMENT BETWEEN TWO POSITIONS, THE ARTIFICAL HEAT CONNECTED TO ONE OF SAID PORTS, AN EXPANSIBLE RESERVOIR CONNECTED TO ANOTHER OF SAID PORTS, TWO OTHER PORTS BEING COUPLED TO SOURCES OF COMPRESSIBLE PRESSURE FLUID AND SUCTION, RESPECTIVELY, SAID SPOOL IN ONE POSITION COUPLING SAID COMPRESSIBLE FLUID PRESSURE SOURCE WITH SAID RESERVOIR AND SAID ARTIFICIAL HEART WITH SAID SUCTION SOURCE, THE OTHER POSITION OF SAID SPOOL COUPLING SAID ARTIFICAL HEART WITH SAID RESERVOIR WHILE BLOCKING FLUID PRESSURE FLOW RELATIVE TO SAID SOURCES, AND ELECTROMECHANICAL MEANS FOR POSITIONING SAID SPOOL, SAID POSITIONING MEANS IN THE ABSENCE OF ENERGIZATION THEREOF BEING ARRANGED TO MAINTAIN SAID SPOOL IN SAID ONE POSITION.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |