Methods employing an internal combustion fastener driving tool
US6019072A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1997 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to methods employing internal combustion fastener driving tool for driving a fastener and for starting a flooded tool. A method for starting a flooded tool includes: compressing the tool against an object to slide a piston axially within a piston housing to purge fuel and air from a combustion chamber, and to close a conduit between a metering chamber and a source of gaseous fuel; latching closed the conduit; drawing air into the combustion chamber by releasing the tool from the object; purging the air and any residual mixture of fuel and air from the combustion chamber by compressing the tool; repeating the drawing and purging steps one or more times; and opening the fluid communication between the fuel source and the combustion chamber. A method of employing the tool to drive a fastener includes: positioning a fastener within the tool for driving by the tool; providing a source of gaseous fuel to power the internal combustion driven piston; positioning the tool on a workpiece at a position for driving a fastener; compressing the tool body against the workpiece to slide a piston axially within a piston housing and to move a lock out plate to allow act…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.