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:
Feb. 16, 1988
Filed:
Apr. 03, 1986
Tokico Ltd., Kanagawa, JP;
Abstract
An anti-skid device for use in a vehicle braking system and comprising a master cylinder for generating pressurized fluid in response to the actuation of a brake pedal, a reservoir supplying hydraulic fluid to the master cylinder, a deceleration detector for detecting the deceleration of a vehicle body the speed of which having been decreased in response to the actuation of the brake pedal, a first valve device for transmitting the fluid pressure generated in the master cylinder to a wheel brake cylinder in actuating the brake pedal and for intercepting the communication between the wheel cylinder and the master cylinder when the deceleration detector detects a predetermined amount of deceleration. The first valve device includes an expansion chamber normally filled by a predetermined amount of pressurized fluid, a dump valve communicating the expansion chamber with the reservoir when the deceleration detector detects the deceleration, and a pump device for pressurizing the expansion chamber. A second valve device is interposed between the first valve device and the reservoir and include a sensor for sensing the inclination of the vehicle such that when the vehicle is at a predetermined up-hill condition the second valve device closes to intercept the communication between the expansion chamber of the first valve device and the reservoir.