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:
Oct. 19, 2010
Filed:
Sep. 29, 2004
Volkmar Klein, Zweibrücken, DE;
Nobert Sann, Riegelsberg, DE;
Volkmar Klein, Zweibrücken, DE;
Nobert Sann, Riegelsberg, DE;
Hydac Filtertechnik GmbH, Sulzbach/Saar, DE;
Abstract
A filter device includes at least one filter element () housed in a filter housing () and connected for the flow of fluid by fluid connections () to a fluid device, in particular in the form of a hydraulic tank (), using a connector device (). A plunger valve arrangement is achieved, whereby the connector device () is provided with at least one longitudinally-displaceable blocking piece (). In the blocking position, the blocking piece blocks the provided fluid connections (). After displacement into an open position, it releases the fluid connections. A blocking or releasing of the fluid connections in a rapid operation process is permitted to carry out a filter element exchange for the used filter medium.