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. 21, 1986
Filed:
Oct. 01, 1984
Nippon Soken, Inc., Nishio, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A window washer comprises a washer liquid jet nozzle provided under a windshield glass of a vehicle so as to be directed thereto for periodically deflecting the jetting direction of the washer liquid horizontally by the fluidic self-oscillating operation thereof, a pump provided in a washer liquid passage connecting the jet nozzle to a washer liquid tank for pressurizing the washer liquid and sending the pressurized washer liquid, a driving motor for driving the pump and a motor control circuit for applying a square pulse shaped voltage to the motor. The motor control circuit periodically operates the pump so that the discharge pressure thereof periodically changes. Consequently, the jetting direction of the washer liquid jetted from the jet nozzle is periodically deflected horizontally and vertically.