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:
Jul. 20, 1976
Filed:
Mar. 07, 1975
Mitsutoyo Mizusawa, Kawanishi, JA;
Nisshin Kogyo Kabushiki Kaisha, Ueda, JA;
Abstract
A device for a brake system including two independent hydraulic lines extending from a dual type brake master cylinder and connected to the respective rear wheel brakes. The device is compactly formed with its essential parts housed in a single casing and can be readily mounted across the two hydraulic lines midway thereof to serve two functions, one of warning the driver of any fluid leakage possibly occurring in one or the other of the two hydraulic lines and the other of adjusting the ratio of the front to the rear wheel brake pressure for maximized overall braking efficiency. A pair of differential pistons are slidably fitted in aligned cylinder bores to define in each an input and an output hydraulic chamber communicating with each other through a normally open control valve, which is closed upon movement of the associated piston under differential pressure. Also, a balance piston is arranged between the differential pistons and movable with either of them to actuate a switch unit inserted in an electrical alarm circuit.