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:
May. 21, 1985
Filed:
Nov. 04, 1983
Akio Matsumoto, Himeji, JP;
Mitsuyoshi Yokota, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is a control for pumping devices in vehicle application. Upon closure of a brake actuator switch (4) subsequent to actuation of a power switch (6) a power transistor (81) becomes conductive and a DC voltage from batteries (5) is fed to a DC motor (2). The brake actuator switch when brought into an open position permits supply of the DC voltage to the base of the power transistor through a time constant circuit (85, 86) for a limited period of time, so that the power transistor becomes conductive to supply the DC voltage to the DC motor for that period. The DC motor activates a pump (1) which in turn operates a pressure-operating unit (10).