Fastener driving tool
US9381634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Jul 20, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a fastener driving tool comprising a tank (2) for storing a fluid, in particular liquefied petroleum gas, a combustion chamber (1) connected to the tank (2), wherein the combustion chamber (1) has a movable piston (6) for powering a driving plunger (7), and a metering device (4) arranged between the tank (2) and the combustion chamber (1), wherein the metering device (4) has a movable displacement member (19) for ejecting the fuel out of a metering space (15), wherein the displacement member (19) can be moved by an actuation force from a first power source in a displacement direction against a pressure of the fuel, wherein an additional supporting force from a second power source acts on the displacement member (19).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.