The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 1989
Filed:
Oct. 05, 1988
Roland Almeras, Tournon, FR;
Societe de Prospection et d'Inventions Techniques (S.P.I.T.), Bourg les Valence, FR;
Abstract
An explosive tool driving apparatus is provided having an improved extractor mounted upon its barrel holder, and the claw of which is meant to retain the case of a propulsive charge during opening of the apparatus. A groove for passage of the claw of the extractor is formed within the barrel of the apparatus. In the firing position, the claw is disposed in front of an abutment shoulder for the collar of the case, so as to provide an initial axial clearance, the extractor is freely movable in translation between two axial stops and, during opening, is moved forwardly by the means of collar of the case the improvement thereby avoiding the hard point during opening of the apparatus