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:
Dec. 22, 1992
Filed:
Aug. 17, 1990
G Emerson Brown, Niles, MI (US);
Allied-Signal Inc., Morristown, NJ (US);
Abstract
The pressure supply valve (40) provides hydraulic pressure from a pressure source (20) to the system modulators (46, 46', 48, 48', 52, 52') and isolates a hydraulic boost chamber (34) of a boosted master cylinder (12). The pressure supply valve (40) includes an armature (83) operated piston valve (72) having a through opening (79), a valve seat (85) of the piston valve (72) engageable with a ball valve (68). The ball valve (68) normally prevents fluid flow from the pressure source (20) to the modulators (46, 46', 48, 48', 52, 52'), and the piston valve (72) permits fluid flow through itself during normal and adaptive braking. During traction control operation, the piston valve (72) displaces the ball valve (68) and permits the pressure source (20) to communicate with the modulators (46, 46', 48, 48', 52, 52').