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. 17, 1991
Filed:
Apr. 11, 1990
Applicant:
Inventor:
Werner Wilkendorf, Ottweiler, DE;
Assignee:
HYDAC Filtertechnik GmbH, Sulzbach/Saar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210238 ; 210341 ; 210424 ;
Abstract
A twin filter comprises two filter housings 11 and 12 which are selectively supplied by a switchover device having a housing 13 with a liquid to be filtered. A closure slide 42 is movable in the housing 13 into two closed positions in which it blocks the supply of the liquid to one of the two filter housings. The closure slide 42 is released from its closed position for displacement into the respective other closed position by a releasing device in the form of a lifting device 48.