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:
Apr. 23, 1991
Filed:
Jan. 19, 1990
Applicant:
Inventor:
Hirohisa Takada, Fukaya, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L / ; B60S / ;
U.S. Cl.
CPC ...
322-8 ; 1525 / ; 1525005 ; 219203 ;
Abstract
A system for preventing frost from accumulating on a window of a motor vehicle has a heating element provided on the window, a temperature switch, which is closed when the temperature of the window is lower than 0.degree. C., and a humidity switch, which is closed when the humidity of air outside of the window becomes about 100%. When both the switches are closed, an electric circuit is closed to connect a battery with the heating element. At the same time, a wiper of the vehicle is operated for a short time to wipe out dew on the window.