Valve mechanisms for elongated combustion chambers
US6755159B1 · kind B1 · utility
29Cited by
13References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2003 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Feb 1, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A new and improved valve assembly for incorporation within a dual combustion chamber system of a combustion-powered fastener-driving tool comprises a single valve mechanism which can operatively control the ingress of atmospheric air into the combustion chambers, the egress of combustion products out from the combustion chambers, and the fluid flows between the first and second combustion chambers attendant VENTING, MIXING, and FIRING stages of an overall combustion cycle. The valve mechanism may comprise either a rotary valve mechanism, a linear-rotary valve mechanism, or a linear valve mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.