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. 03, 1989
Filed:
Apr. 28, 1988
Applicant:
Inventors:
Kazushi Noda, Ichinomiya, JP;
Makoto Kanai, Kani, JP;
Assignee:
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60Q / ;
U.S. Cl.
CPC ...
3403 / ; 3404255 ;
Abstract
A horn circuit for an automotive vehicle features a transistor amplifying circuit which functions to amplify an output current of a horn switch. With the help of this transistor amplifying circuit, the horn switch makes the horn circuit operative in order to actuate the horn, regardless of depressive strength applied to the switch operation. A diaphragm or membrane switch which is a small current type is usable, whereby a low-cost and highly reliable horn circuit for the automotive vehicle is realized.