Patent attributes
Gas-operated fixing tool including a working chamber, a piston mounted slideably in the working chamber and comprising a driving rod of which a first longitudinal end is configured to drive a fixing element and of which a second longitudinal end is connected to a head which separates the working chamber into a first portion and into a second portion which is traversed by the rod, and at least one combustion chamber in which a mixture of air and fuel is intended to be burnt in order that combustion gases generate a rise in pressure that causes a movement of the piston in the working chamber, wherein the at least one combustion chamber is in fluid communication with the second portion in such a way that the rise in pressure causes the movement and the return of the piston into a rest position ready for firing a fixing element.
