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:
Aug. 10, 1982
Filed:
Apr. 03, 1980
Otto Sauermilch, Stolberg, DE;
William Prym-Werke KG, Stolberg, DE;
Abstract
A machine for affixing e.g. snap fasteners, rivets and the like to workpieces has a stationary lower tool and a downwardly movable cooperating upper tool. To protect the finger of an operator against injury by the tools the machine also has a finger guard positioned to move ahead of the descending upper tool. The finger guard is mounted on two parallel upright links which are longitudinally shiftable relative to each other. When the finger guard encounters an obstacle this results in shifting of one link relative to the other and two normally engaged contacts in an electrical circuit for the machine drive move apart, interrupting the circuit and shutting down the machine drive.