US3299986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve operating lifter and valve train lubricator
Assignee: Individual
•
Filing: 1965-01-25
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Granted: 1967-01-24
•
Expires: 1985-01-25
Abstract
No abstract record available.
Inventors
- 👤 Stephen F Briggs
- 👤 Joseph F Nemechek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:00
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01M; F01M9/00; F01M9/10; F01M9/104; F01M9/107; F02; F02B; F02B2275/00; F02B2275/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A VALVE ACTUATOR WHICH INCLUDES A CAM FOLLOWER SHOE, GUIDE SLEEVE, AND PUSH ROD THRUST MEMBER, SAID ACTUATOR COMPRISING, IN INTEGRAL COMBINATION, A SHOE HAVING THE FORM OF A SHALLOW CUP WITH A BOTTOM CAM FOLLOWER SURFACE, AN ANNULAR SHOULDER ABOVE SAID SURFACE, AND AN ANNULAR SIDE WALL WITH A CHANNEL INTERMEDIATE ITS ENDS AND HAVING AN UPPER RIM AND AN INTERNAL CHAMBER, A THRUST DISK HAVING A CENTRAL PUSH ROD BEARING AND PERIPHERALLY SEATED DIRECTLY ON THE UPPER RIM OF THE SIDE WALL, AND SAID GUIDE SLEEVE HAVING A LOWER END PORTION ENGAGING THE SHOULDER, SAID SLEEVE EMBRACING THE SIDE WALL AND EXTENDING ABOVE THE DISK, SAID SLEEVE HAVING AN INTEGRAL RIB ENGAGED IN THE CHANNEL OF THE SIDE WALL OF THE SHOE AND INTERLOCKING THE SLEEVE WITH THE SHOE AND FURTHER HAVING AN INWARDLY DEFORMED PORTION OVERLYING THE DISK AND HOLDING THE DISK TO THE SIDE WALL.
Claim 2
Dependent Claim
149 words
A VALVE ACTUATOR WHICH INCLUDES A CAM FOLLOWER SHOE, GUIDE SLEEVE, AND PUSH ROD THRUST MEMBER, SAID ACTUATOR COMPRISING, IN INTEGRAL COMBINATION, A SHOE HAVING THE FORM OF A SHALLOW CUP WITH A BOTTOM CAM FOLLOWER SURFACE, AN ANNULAR SHOULDER ABOVE SAID SURFACE, AND AN ANNULAR SIDE WALL WITH A CHANNEL INTERMEDIATE ITS ENDS AND HAVING AN UPPER RIM AND AN INTERNAL CHAMBER, A THRUST DISK HAVING A CENTRAL PUSH ROD BEARING AND PERIPHERALLY SEATED DIRECTLY ON THE UPPER RIM OF THE SIDE WALL, AND SAID GUIDE SLEEVE HAVING A LOWER END PORTION ENGAGING THE SHOULDER, SAID SLEEVE EMBRACING THE SIDE WALL AND EXTENDING ABOVE THE DISK, SAID SLEEVE HAVING AN INTEGRAL RIB ENGAGED IN THE CHANNEL OF THE SIDE WALL OF THE SHOE AND INTERLOCKING THE SLEEVE WITH THE SHOE AND FURTHER HAVING AN INWARDLY DEFORMED PORTION OVERLYING THE DISK AND HOLDING THE DISK TO THE SIDE WALL.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |