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. 12, 2002
Filed:
Jan. 29, 2002
Applicant:
Inventors:
Gerhard Ehmig, Rankweil, AT;
Norbert Heeb, Buchs, CH;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25C 1/14 ;
U.S. Cl.
CPC ...
B25C 1/14 ;
Abstract
A piston holder for a drive piston ( ) of a setting tool and including a circumferential groove ( ) provided in a stationary, with respect to the setting tool, component of the setting tool and surrounding the drive piston ( ), with the circumferential groove ( ) becoming shallower in a drive-out direction of the drive piston ( ), and an O-shaped helical tension spring ( ) located in the circumferential groove ( ) and concentrically surrounding the drive piston ( ).