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. 22, 1991
Filed:
Jun. 22, 1989
Applicant:
Inventor:
Susumu Watanabe, Tokyo, JP;
Assignee:
Nippon Gear Co., Ltd., Fujisawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
318603 ; 318601 ; 318434 ; 318286 ;
Abstract
When abnormal torque occurs in a valve, water gate, etc., it changes speed of a load shaft in a reduction gears, which is transmitted from a worm to a rotary encoder via a main shaft connected to an electric motor and gears. An electric signal is fed from the rotary encoder to a microcomputer in which the abnormal torque is identified to stop the elctric motor. The microcomputer also identifies a full-opening point and a complete-closing point of the valve to stop the electric motor.
Quick Actions:
Watanabe, Susumu. (1991). Electric actuator control apparatus (U.S. Patent No. 5059879). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5059879
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile