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:
Jun. 13, 1989
Filed:
Dec. 03, 1987
Hans-Dieter Reinartz, Frankfurt am Main, DE;
Helmut Steffes, Hattersheim, DE;
Edwin Czarnetzki, Elz, DE;
Alfred Teves GmbH, Frankfurt am Main, DE;
Abstract
A pressure differential valve, in particular for pressure fluid-actuatable motor vehicle brake systems, is disclosed and comprises a housing having a valve arrangement which is loaded by a preload force and which governs a connection between an inlet and an outlet. The preload force determines the gradient of pressure between the inlet pressure and the outlet pressure of the valve. In order to create a pressure differential valve which can be easily mounted and responds quickly at a low change-over pressure, the valve arrangement is actuatable by a tappet which is movable in dependence on the position of a diaphragm.