Mechanical valve lifter
US3989016A · kind A · utility
8Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1975 |
| Grant date | Nov 2, 1976 |
| Priority date | — |
| Expiry date | Jul 25, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A mechanical valve lifter including a cup member adapted to fit over the end of a valve stem, the cup member having a boss therein with an axial bore extending from one end thereof and a threaded bore extending radially from the exterior of the cup member to intersect the bore in the boss, an elastomer plug positioned in the bore of the boss, a piston member slidably received in the bore with one side thereof in abutment with the elastomer plug and the other side engageable with the end of the valve stem and, an internal wrenching head screw threaded into the threaded bore to engage the elastomer plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.