Venting check valve for combustion nailer
US7591236B2 · kind B2 · utility
7Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2006 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Jun 3, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2003/25
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A combustion nailer configured for reducing intake of contaminated air during operation, includes a combustion engine having a cylinder with a piston reciprocating between a prefiring position and a fully extended position, and at least one air port in the cylinder below the fully extended position. The at least one air port is provided with a venting check valve configured so that the discharge volume from the cylinder out the at least one air port is greater than the inflow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.