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:
Dec. 18, 1990
Filed:
Apr. 28, 1989
Fumio Kobayashi, Yokohama, JP;
Ohi Seisakusho Co., Ltd., Yokohama, JP;
Abstract
An electric actuator for actuating a door lock comprises an electric motor having a drive shaft and an output shaft arranged coaxial with the drive shaft, the output shaft having a helical ridge formed thereabout. A clutch is interposed between the drive shaft and the output shaft, the clutch permitting only a power transmission from the drive shaft to the output shaft. An operation rod having a threaded bore is operatively engaged with the helical ridge of the output shaft, the operation rod being adapted to connect with an operation lever of the door lock; and a rotation suppressing structure suppresses rotation of the operation rod about its axis even when the output shaft is rotated about its axis.