Combustion chamber valve and fuel system for driven fastener hand tool
US11624314B2 · kind B2 · utility
1Cited by
129References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2019 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Nov 29, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A novel combustion chamber valve and fuel system for driven fastener hand tool is disclosed having a fuel pump disposed parallel to the combustion and piston chambers. Pressure applied a safety at the nose of the tool is activates the fuel pump in a common direction. Pressure applied on a trigger activates the valve system prior to firing in a common direction. The valve system employs a central shaft coupling three valves, an inlet valve using a novel wedged circumferential edge seal, a control valve using a novel edge circumferential seal with a ventilated support, and a charging exhaust valve using a face seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.