Elastomeric exhaust reed valve for combustion driven fastener hand tool
US11554471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2016 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Dec 25, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An exhaust valve comprising an elastomeric flap portion (e.g. of silicone) covering one or more exhaust ports in a normally closed position for a combustion driven fastener hand tool is disclosed. The elastomeric flap portion is much shorter than a comparable steel reed valve, allowing it to be disposed in small spaces. A single flat piece of elastomeric material can be configured held fixed to a housing surface along a line between one or more pairs of ports such that a flap portion of the material extends to each side of the line and covers one of the pairs of ports. The flat piece can be conveniently held in position against the housing surface by a rib or standoff on the interior surface of an exterior housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.