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. 20, 1998
Filed:
Mar. 11, 1997
Applicant:
Inventors:
Takashi Mizuno, Aichi, JP;
Sadao Kokubu, Aichi, JP;
Hisashi Aoki, Aichi, JP;
Yoshiyuki Mizuno, Aichi, JP;
Assignee:
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70278 ; 70277 ;
Abstract
A key-operated cylinder device includes a cylinder device body into which a key having a secondary coil is inserted, the cylinder device body including a coil mounting portion forming the front end portion of said cylinder device body; a primary coil mounted in said coil mounting portion, the primary coil wound on a coil bobbin; and shielding device for preventing the magnetic flux of the primary coil from flowing into the cylinder device body, the shielding device being arranged between the coil mounting portion and the primary coil.