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:
Nov. 07, 2000
Filed:
Feb. 11, 1999
Josef Schumacher, Reutlingen, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
A 3/3-way valve with a control member received in a valve chamber is provided. The member, in three control positions, blocks a consumer opening and a relief opening (maintain pressure), connects the consumer opening with a supply opening and blocks the relief opening (increase pressure), and connects the consumer opening with the relief opening and blocks the supply opening (reduce pressure). To reduce manufacturing costs for a 3/3-way valve of this kind, two chamber sections delimited by the control member in the valve chamber are constantly connected with one another and the three openings are arranged at certain intervals apart from one another. The adjustment is made such that the control member in one control position covers the consumer opening and the relief opening, in another control position covers only the relief opening, and in another control position covers only the supply opening.