US3140698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic tappet unit inverted
Assignee: Individual
•
Filing: 1962-04-13
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Granted: 1964-07-14
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Expires: 1982-04-13
Abstract
No abstract record available.
Inventors
- 👤 Voorhies Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:03
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/2411; F01L1/26; F02; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02F2001/244; F02F2001/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A HYDRAULIC LASH ADJUSTER UNIT, SAID UNIT COMPRISING A GUIDE INSERTABLE IN A CLOSED-END CAVITY OF A MOVABLE ELEMENT OF A VALVE ACTUATING LINKAGE, A CYLINDER MOUNTED THEREIN FOR RECIPROCATION, MEANS PREVENTING SEPARATION OF SAID CYLINDER FROM SAID GUIDE, A HOLLOW PISTON MOUNTED WITHIN SAID CYLINDER FOR RECIPROCATION, AN OPENING IN ONE END OF SAID PISTON, THE OPPOSITE END OF SAID PISTON BEING CLOSED BY A MEMBER SHAPED WITH A ROUNDED EXTERIOR SURFACE PORTION DISPOSED TO ENGAGE THE CLOSED END OF SAID CAVITY WHEN THE UNIT IS INSERTED THEREIN, SAID PISTON BEING PERFORATED IN ITS WALL, THERE BEING CLEARANCE BETWEEN SAID PISTON AND THE ADJACENT WALL OF SAID CYLINDER ADAPTED TO ESTABLISH A PASSAGE TO THE INTERIOR OF SAID PISTON.
Claim 2
Dependent Claim
120 words
A HYDRAULIC LASH ADJUSTER UNIT, SAID UNIT COMPRISING A GUIDE INSERTABLE IN A CLOSED-END CAVITY OF A MOVABLE ELEMENT OF A VALVE ACTUATING LINKAGE, A CYLINDER MOUNTED THEREIN FOR RECIPROCATION, MEANS PREVENTING SEPARATION OF SAID CYLINDER FROM SAID GUIDE, A HOLLOW PISTON MOUNTED WITHIN SAID CYLINDER FOR RECIPROCATION, AN OPENING IN ONE END OF SAID PISTON, THE OPPOSITE END OF SAID PISTON BEING CLOSED BY A MEMBER SHAPED WITH A ROUNDED EXTERIOR SURFACE PORTION DISPOSED TO ENGAGE THE CLOSED END OF SAID CAVITY WHEN THE UNIT IS INSERTED THEREIN, SAID PISTON BEING PERFORATED IN ITS WALL, THERE BEING CLEARANCE BETWEEN SAID PISTON AND THE ADJACENT WALL OF SAID CYLINDER ADAPTED TO ESTABLISH A PASSAGE TO THE INTERIOR OF SAID PISTON.
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |