Fastener driving device with trigger valve
US5865360A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Dec 5, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/043
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved pneumatically operated fastener driving device comprising an actuating assembly mounted with respect to a housing assembly and movable from an inoperative position to an operative position. A first sealing element is mounted with respect to a feed path. The first sealing element moves from a sealed position, wherein it prevents communication between an air pressure reservoir and a control pressure chamber when the actuating assembly is in the operative position, and an unsealed position, wherein the first sealing element permits such communication to move a main valve to a closed position when the actuating assembly is in the inoperative position. A second sealing element is mounted with respect to an exhaust port and moves from a sealed position, wherein it prevents communication between the control pressure chamber and the atmosphere when the actuating assembly is in the inoperative position, and an unsealed position, wherein the second sealing element permits such communication, thereby affecting movement of the main valve to an open position, when the actuating assembly is in the operative position. A biasing element is operatively associated with the second sealing…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.