Internal combustion-engined tool
US6830017B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2003 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Jul 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An internal combustion-engined setting tool includes a drive piston (15) displaceably supported in the piston guide (17) and displaceable in a setting direction (4) by expandable gases produced in the main combustion chamber (11) of the tool and pre-chamber (20) for generating pressure that is transmitted to the main combustion chamber (11) before the ignition (19) of the air-fuel mixture in the main combustion chamber takes place, with the pre-chamber (20) being formed by space a within the piston guide (17) beneath a bottom of the drive piston (15) remote from the main combustion chamber (11), when the drive piston occupies its initial position, and with the pre-chamber (20) being connected with the main combustion chamber (11) by a transfer guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.