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:
Dec. 16, 2014
Filed:
Jun. 27, 2009
Applicant:
Winfried Rüb, Waldshut-Tiengen, DE;
Inventor:
Winfried Rüb, Waldshut-Tiengen, DE;
Assignee:
Hydac Filtertechnik GmbH, Sulzbach/Saar, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 31/12 (2006.01); F16K 31/383 (2006.01); F15B 13/01 (2006.01); F16K 31/122 (2006.01); F15B 13/04 (2006.01); F15B 13/042 (2006.01);
U.S. Cl.
CPC ...
F16K 31/383 (2013.01); F15B 13/015 (2013.01); F16K 31/1221 (2013.01); F16K 31/1225 (2013.01); F16K 31/12 (2013.01); F15B 13/0402 (2013.01); F15B 13/0405 (2013.01); F15B 13/042 (2013.01);
Abstract
A hydraulic valve device has a valve housing () in which an activating piston () is guided in a movable manner. The activating piston () is actuatable by an actuating device () and activates a pilot valve () to connect a fluid port (T) in the valve housing () to a fluid chamber () of a shut-off piston (). The shut-off piston () activates at least one fluid-conducting connecting line () of the valve device and has a fluid conducting control line () opening from the connecting line () into the fluid chamber () of the shut-off piston ().