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:
Jul. 17, 1990
Filed:
Jun. 12, 1989
Hilti Aktiengesellschaft, Furstentum, LI;
Abstract
In an explosive powder actuated setting device, a driving piston (8) is displaceable between a ready-to-fire position and a fired position within a barrel (12) formed by a piston guide (5). When the piston is driven from the ready-to-fire position into the fired position, it is held by braking balls (17) supported in recesses (16) in the piston guide. As it moves into the fired position, the piston moves the braking balls into the range of a spring (18) which biases the balls inwardly against the shank (11) of the piston (8). When the piston is returned into the ready-to-fire position, the balls move out of the range of the spring releasing the biasing force acting on the piston shank via the balls.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile