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:
Apr. 14, 1987
Filed:
May. 31, 1983
Tadashi Matsumoto, Osaka, JP;
Katsuya Fukakura, Osaka, JP;
National House Industrial Co., Ltd., Osaka, JP;
Abstract
A door installation and a locking device used therein. The door installation consisting of a door provided with the body of a lock a of the locking device, and frame members fitted with a receiving plate thereof. The body of lock has a bolt built-in. This bolt is held optionally in the half-projecting position between the wholly projecting position and the door-opening position by handling operating units. The bolt in turn puts a controlling means in motion, whereby it is possible to make an electric circuit operate automatically ON or OFF, which electric circuit is arranged to interpose in itself electric appliances, for example, such as lighting apparatuses being disposed indoors or outdoors, therefore giving practical effect to the simplification of operating the lighting on-and-off and to the power saving, and further contributing to the safety problem through preventing overheating and leakage caused by the possible neglect of not turning lighting off.