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. 11, 2018
Filed:
Jan. 12, 2016
Hydac Filtertechnik Gmbh, Sulzbach/Saar, DE;
Volkmar Klein, Zweibruecken, DE;
Michael Sakraschinsky, St. Ingbert, DE;
HYDAC FILTERTECHNIK GMBH, Sulzbach/Saar, DE;
Abstract
A filter apparatus includes a filter housing having a filter head () and a filter bowl (). The housing accommodates a filter element that separates a non-filtrate side () from a filtrate side (). A differential pressure measurement device () indicates at least a blockage of the filter element during filtration operation and has a measurement piston () that is guided in a measurement housing () in a longitudinally displaceable manner. An end face () of that piston is subjected to the instantaneous pressure of the non-filtrate side (). The opposite end face of the piston is subjected to the instantaneous pressure of the filtrate side (). Each instantaneous pressure passes into the measurement housing () via at least one conduit (). At least a section () of the conduit is arranged in an element cap () of the filter element.