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. 08, 1991
Filed:
Sep. 25, 1990
Applicant:
Inventors:
Takashi Fukui, Aichi, JP;
Hironobu Kawai, Aichi, JP;
Assignee:
Asmo Co., Ltd., Kosai, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318254 ; 318116 ;
Abstract
An air damper operating system for vehicle air conditioners with a plurality of ultrasonic motors. An oscillator circuit, phase shifter and feedback circuit control the frequency of an oscillator of a motor. A feedback signal transfer switch, position sensors and a time-division switching circuit operate the motors until they are rotated to predetermined positions.
Quick Actions:
Fukui, Takashi. (1991). Air damper operating system of vehicle air conditioners (U.S. Patent No. 5055750). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5055750
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile