Patent ID: 6783049
Filing Date: 2004-08-31
Classification: B25C

Abstract:
A fluid fuel-operated setting tool for driving in fastening elements, comprising a housing (11) with a combustion chamber provided therein for combusting fluid fuel, with a released energy of combustion of the fluid fuel being used for driving in a fastening element; a reservoir (20, 20â€², 22â€³) for storing the fluid fuel and from which the fluid fuel is fed to the combustion chamber; and means (17, 27) for attaching the fuel reservoir (20, 20â€², 22â€³) to the housing (20),wherein the fuel reservoir (20, 20â€², 22â€³) has, in a direction parallel to a longitudinal axis (22) thereof, a jacket (21) having an envelope shape and habit of which are defined by inscribed and circumscribing envelope circles (211, 212); wherein the fuel reservoir (20, 20â€², 20â€³) is formed so that in a direction perpendicular to the longitudinal axis (22) of the fuel reservoir (20, 20â€², 20â€³), the jacket envelope-defining, inscribed and circumscribing envelope circles (211, 212) stay in relationship such that a size of a circumference of the circumscribing envelope circle is greater than a size of a circumference of the inscribed envelope, and wherein the jacket (21) of the fuel reservoir (20, 20â€², 20â€³) is formed of a jacket sections (23, 24) having different radii.