Valve assembly with manually actuated valve override
US5623968A · kind A · utility
8Cited by
17References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8663
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve assembly for a pneumatic machine including a valve body having a first end, a second end, a central bore extending through the ends and a plurality of flow ports formed in the body; a valve spool movable through the bore along an axis in response to the flow of gas through the valve, to selectively open and seal the ports; an main inlet valve for moving the valve spool a distance along the axis; and a manually actuated means for overriding the main inlet valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.