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. 29, 2001
Filed:
Apr. 29, 1999
Georg Neumair, Thalhausen, DE;
Abstract
A seat valve for regulating hydraulic pressure to an adjustable value comprises: a valve seat located between a first chamber having not regulated high pressure and a second chamber having said regulated pressure with said regulated value, a seat valve closure member movable in said first chamber in relation to said valve seat, and a control piston in said second chamber for engagement at said seat valve closure member, said control piston being located counter to the regulated pressure by an adjustable regulating force. Said control piston is coupled with a position detector in motion transmitting fashion. A signal can be generated by said position detector which signal has a predetermined and essentially constant proportion to the respective value of the regulated pressure within the entire adjustment range of the leakage-proof operating seat valve.