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:
Jul. 29, 2003
Filed:
Jan. 03, 2001
Martin Freidinger, Saarbrucken, DE;
Hydac Filterechnik GmbH, Sulzbach, DE;
Abstract
A filter arrangement includes at least two filter chambers that are alternately impinged upon through the activation of a reversing valve, a manually operated reversing lever, a compensation valve which can be activated for pressure compensation between the filter chambers, and a detent device to enable the reversing valve to be activate in dependence on the activation of the compensation valve. The reversing lever is configured in the form of a two-armed pivoted lever mounted on the reversing valve so that it can pivot such that the lever arm facing away from the handle part of the reversing lever activates the compensation valve during the pivoting movement. The second lever arm forms the handle part and moves the detent device out of its locking position and into the release position enabling the activation of the reversing valve.