US3587539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic lash adjuster
Assignee: Johnson Products Inc
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Filing: 1970-04-17
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Granted: 1971-06-28
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Expires: 1990-04-17
Abstract
Abstract THIS DISCLOSURE RELATES TO A HYDRAULIC LASH ADJUSTER FOR OVERHEAD CAM ENGINES AND THE LIKE. OIL WITHIN THE THE PISTON BODY PASSES THROUGH THE TOP OF THE PISTON TO LUBRICATE A CLOSED SOCKET BETWEEN THE ROCKER ARM AND THE LASH ADJUSTER. A PIN, POSITIONED IN THE PASSAGE IS RECIPROCATABLE. THE EXTENT OF RECIPROCATION OF THE PINE WITHIN THE PASSAGE IN EITHER DIRECTION IS LIMITED TO PREVENT LOSING OF THE PIN PRIOR TO INSTALLATION OF THE LASH ADJUSTER INTO THE ENGINE.
Inventors
- 👤 Morris V Dadd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:35
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/2405; F01L1/12; F01L1/18; F01L2001/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |