US3306270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve operation system
Assignee: Individual
•
Filing: 1964-07-09
•
Granted: 1967-02-28
•
Expires: 1984-07-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Mccarl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/30; F01L9/00; F01L9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A VALVE OPERATING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE PROVIDED WITH A CYLINDER, A VALVE FOR CONTROLLING FLUID FLOW BETWEEN SAID CYLINDER AND A PASSAGE EXTERNALLY THEREOF, AND A SEAT FOR SAID VALVE; CAM MEANS DRIVEN BY THE ENGINE, MEANS FOR PROVIDING A POSITIVE MECHANICAL DRIVING CONNECTION BETWEEN SAID CAM MEANS AND VALVE FOR OPENING THE VALVE AND INCLUDING AN EXPANSIBLE CHAMBER HAVING A MOVEABLE WALL CONNECTED FOR MOVEMENT WITH THE VALVE AND FACING IN THE DIRECTION OF MOVEMENT OF THE WALL CORRESPONDING TO OPENING OF THE VALVE, MEANS PROVIDING A SECOND EXPANSIBLE CHAMBER HAVING A MOVEABLE WALL, MEANS PROVIDING A LIQUID PASSAGE BETWEEN THE CHAMBERS, A SUBSTANTIALLY INCOMPRESSIBLE LIQUID FILLING SAID CHAMBERS AND PASSAGE, SAID CAM MEANS BEING OPERATIVELY ASSOCIATED WITH THE MOVEABLE WALLS OF SAID CHAMBER ALTERNATELY TO EFFECT CONTRACTION OF THE FIRST CHAMBER AND SIMULTANEOUS EXPANSION OF THE SECOND CHAMBER AND CONTRACTION OF THE SECOND CHAMBER AND SIMULTANEOUS EXPANSION OF THE FIRST CHAMBER IN RESPONSE TO
Claim 2
Dependent Claim
160 words
IN A VALVE OPERATING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE PROVIDED WITH A CYLINDER, A VALVE FOR CONTROLLING FLUID FLOW BETWEEN SAID CYLINDER AND A PASSAGE EXTERNALLY THEREOF, AND A SEAT FOR SAID VALVE; CAM MEANS DRIVEN BY THE ENGINE, MEANS FOR PROVIDING A POSITIVE MECHANICAL DRIVING CONNECTION BETWEEN SAID CAM MEANS AND VALVE FOR OPENING THE VALVE AND INCLUDING AN EXPANSIBLE CHAMBER HAVING A MOVEABLE WALL CONNECTED FOR MOVEMENT WITH THE VALVE AND FACING IN THE DIRECTION OF MOVEMENT OF THE WALL CORRESPONDING TO OPENING OF THE VALVE, MEANS PROVIDING A SECOND EXPANSIBLE CHAMBER HAVING A MOVEABLE WALL, MEANS PROVIDING A LIQUID PASSAGE BETWEEN THE CHAMBERS, A SUBSTANTIALLY INCOMPRESSIBLE LIQUID FILLING SAID CHAMBERS AND PASSAGE, SAID CAM MEANS BEING OPERATIVELY ASSOCIATED WITH THE MOVEABLE WALLS OF SAID CHAMBER ALTERNATELY TO EFFECT CONTRACTION OF THE FIRST CHAMBER AND SIMULTANEOUS EXPANSION OF THE SECOND CHAMBER AND CONTRACTION OF THE SECOND CHAMBER AND SIMULTANEOUS EXPANSION OF THE FIRST CHAMBER IN RESPONSE TO
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |