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:
Sep. 08, 1981
Filed:
May. 21, 1980
Rudiger Hoffmann, Sindelfingen, DE;
Dieter Feichtiger, Aidlingen, DE;
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Abstract
A control valve for controlling a routing of a pressure medium in pneumatic conduits, especially those in motor vehicles, wherein the control valve includes a housing provided with a cylindrical recess and a control slide guided in the cylindrical recess in a longitudinally-displaceable fashion. A gasket or sealing arrangement is provided by means of which a central pneumatic conduit is alternatingly connected, after an operating stroke of the control slide, to a pneumatic conduit lying to the left and to the right of the central pneumatic conduit. The control valve further includes an operating sleeve longitudinally displaceable between two compression springs supported on the control slide and between two detent locations. The operating sleeve is arranged on the control slide in such a way that, upon operation of the operating sleeve, the control slide is braked as soon as sealing elements of the sealing arrangement abut against respective opposite valve seat surfaces. The operating sleeve during a further stroke, upon exceeding a specific resistance, is disengaged from one detent location and, upon further axial displacement, engages into the other detent location against the force or strength of one of the compression springs.