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:
Oct. 26, 1982
Filed:
Feb. 12, 1981
Thomas E Hostetler, New Carlisle, IN (US);
Ted J Ellis, Jr, Goshen, IN (US);
Bristol Corporation, Elkhart, IN (US);
Abstract
A guard apparatus for production machines having hazardous work areas in which injury to the machine operator can occur, in which a guard rod is disposed around the perimeter of the hazardous work area and is attached on one end to an emergency circuit activation mechanism connected by an electric circuit to the emergency stop circuitry of the machine. If the guard rod is deflected either upwardly or downwardly, a switch in the activation mechanism is tripped, causing the emergency circuitry of the machine to go into an emergency off condition, thereby stopping the machine. A second emergency circuit activation mechanism can be connected to the other end of the guard rod to provide a back-up for the operation of the guard apparatus if the first switch fails.