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. 25, 1982
Filed:
Jun. 02, 1980
Volker Berisch, Hattersheim, DE;
ITT Industries, Inc., New York, NY (US);
Abstract
The control valve is disposed between the master cylinder and the wheel cylinder for controlling the brake pressure. The control valve comprises a differential piston which has a control force applied thereto and a valve which is controlled dependent on the movement of the differential piston. To achieve a very simple construction and a great variation of different control valve types employing largely identical elements, the control valve of the present invention includes a sleeve inserted into the housing bore and a screw-in cap to close the housing bore. Associated with the sleeve and the screw-in cap are spacer members to keep the sleeve in place. The differential piston is a stepped piston having an axial pressure medium channel with the end of this channel in the smaller diameter portion of the stepped piston cooperating with a valve closing member to provide the regulating valve. The smaller diameter portion of the stepped piston is guided in the sleeve and the larger diameter portion of the stepped piston is guided in a coaxial bore of the screw-in cap.