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. 21, 1990
Filed:
Jan. 04, 1989
Applicant:
Inventor:
Takuji Harada, Kanagawa, JP;
Assignee:
Harada Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
388815 ; 388920 ; 318650 ; 318468 ;
Abstract
A rod antenna control system for automobiles wherein electric current is supplied continuously to a motor which pushes up an antenna motor when a current below a predetermined value is flowing to the motor, and the current is supplied intermittently to the motor when a current above a predetermined value flows to the motor, and whether or not the electric current is over or below the predetermined value is determined by integrating the motor current for certain period of time and comparing such integrated value to the predetermined value.