Patent US3108580A successfully refreshed from Google Patents.
US3108580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-rotatable valve tappet
Assignee: Individual
•
Filing: 1963-03-13
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Granted: 1963-10-29
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Expires: 1983-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Harvey J Crane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:53
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L2307/00; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A NON-ROTATABLE VALVE TAPPET FOR INTERNAL COMBUSTION ENGINES WHEREIN A PAIR OF ADJACENT TAPPETS ARE EMPLOYED TO ACTUATE ALTERNATELY THE INTAKE AND ECHAUST VALVES OF THE ENGINES, EACH TAPPET COMPRISING A CYLINDRICAL HOLLOW HOUSING OPEN AT ITS UPPER END, THE HOUSING BEING RECIPROCATABLE THROUGH A CYLINDRICAL OPENING FORMED IN A PORTION OF AN ENGINE BLOCK, A LOWER PORTION OF THE HOUSING BEING BIFURCATED TO ROTATABLY RECEIVE A ROLLER THAN ENGAGES A CAM DEVICE FORMED UPON A CAM SHAFT OF THE ENGINE, THE HOUSING BEING BIASED UPWARDLY BY A COIL SPRING THAT IS DISPOSED UPON THE UPPER PORTION OF THE HOUSING THAT EXTENDS ABOVE THE ENGINE BLOCK, THE OPPOSITE SIDES OF THE UPPER PORTION OF THE HOUSING BEING FORMED FLAT, A PLATE DISPOSED UPON THE TOP OF THE BLOCK AND WITH
Claim 2
Dependent Claim
130 words
A NON-ROTATABLE VALVE TAPPET FOR INTERNAL COMBUSTION ENGINES WHEREIN A PAIR OF ADJACENT TAPPETS ARE EMPLOYED TO ACTUATE ALTERNATELY THE INTAKE AND ECHAUST VALVES OF THE ENGINES, EACH TAPPET COMPRISING A CYLINDRICAL HOLLOW HOUSING OPEN AT ITS UPPER END, THE HOUSING BEING RECIPROCATABLE THROUGH A CYLINDRICAL OPENING FORMED IN A PORTION OF AN ENGINE BLOCK, A LOWER PORTION OF THE HOUSING BEING BIFURCATED TO ROTATABLY RECEIVE A ROLLER THAN ENGAGES A CAM DEVICE FORMED UPON A CAM SHAFT OF THE ENGINE, THE HOUSING BEING BIASED UPWARDLY BY A COIL SPRING THAT IS DISPOSED UPON THE UPPER PORTION OF THE HOUSING THAT EXTENDS ABOVE THE ENGINE BLOCK, THE OPPOSITE SIDES OF THE UPPER PORTION OF THE HOUSING BEING FORMED FLAT, A PLATE DISPOSED UPON THE TOP OF THE BLOCK AND WITH
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |