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. 08, 1989
Filed:
Feb. 18, 1988
Applicant:
Inventor:
Shunsaku Nakauchi, Mitaka, JP;
Assignee:
RYOBI Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
292335 ; 292144 ; 292150 ;
Abstract
An electric key has a self-holding electromagnet for attracting movable means holding a locking block in its nonconductive state and for releasing the movable means in its conductive state by a spring. The movable means is returned by a hand-operation to a position where it is attracted on the electromagnet. This results in the saving of electric power.