Handheld valve replacement tool
US4095324A · kind A · utility
Inventor
Key dates
| Filing date | May 28, 1976 |
| Grant date | Jun 20, 1978 |
| Priority date | — |
| Expiry date | May 28, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53817
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand-held tool for removing or replacing valve stem keepers such as utilized with spring tensioned valves found in an internal combustion engine, the device having a rigid body with one end face of the body having a cavity disposed therein. The body cavity includes a larger diameter cavity and a relatively smaller diameter cavity. A resilient sleeve having an annular lip at one end is removeably coupleable within said smaller diameter cavity and is utilized with the rigid body for placement or replacement of valve stem keepers. The tool body includes a passage between the body exterior and the smaller cavity to provide pressure balance and ease of removal of the resilient sleeve. With the resilient sleeve removed, the device is utilized to remove the valve stem keepers in a normal manner. The body of the tool is sized to be engageable with the particular valve spring retainer located adjacent the end of a valve stem. The device facilitates combustion engine valve removal placement or replacement such that the valve keepers may be placed, removed or replaced with a single blow or any force such as a hammer applied to one end of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.