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:
Jun. 21, 1977
Filed:
Nov. 07, 1975
Applicant:
Inventor:
Robert J Pastorel, Chicago, IL (US);
Assignee:
Appleton Electric Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
200 / ; 7448 / ; 174 / ; 200302 ;
Abstract
An explosion-proof electrical enclosure has a body, switch mounted within the body, two threaded caps cooperatively engaging manually defeatable locking bolts in the body which prevent rotation of the caps and manually operated interlocking mechanism mounted in the body to actuate a switch and prevent unlocking of the bolts in the switch on position.
Pastorel, Robert. (1977). Defeater for mechanical safety interlock for covers of explosion-proof (U.S. Patent No. 4031340). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4031340
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile