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. 22, 1979
Filed:
Dec. 07, 1977
David A Harries, West Midlands, GB;
Girling Limited, Birmingham, GB;
Abstract
In a fluid pressure-operated anti-skid braking system for vehicles, operating fluid from a supply is supplied to the wheel brake through a fluid-flow control valve interposed between the supply and the brake. A deceleration responsive device responsive to a skid signal is incorporated for operating the control valve to relieve the brake pressure of the fluid supplied to the brake when the deceleration of the wheel is excessive and exceeds a pre-determined value. A memory for storing a memory pressure dependant on the brake pressure at a skid is incorporated, and the memory pressure operates the control valve directly during a first stage of brake re-application, and provides a changeover point between first and second stages of brake re-application. The second stage comprises continued re-application but at a reduced rate of pressure increase.