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:
Jan. 18, 1983
Filed:
Jun. 02, 1981
Applicant:
Inventors:
Wolfgang Brakelmann, Unna-Lunern, DE;
Gunter Smusch, Werne, DE;
Assignee:
Holstein & Kappert GmbH, Dortmund, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; F17D / ;
U.S. Cl.
CPC ...
137240 ; 137312 ; 13761417 ; 13761418 ; 13761419 ; 1376372 ; 137315 ; 1341 / ;
Abstract
A double-seat valve unit with leakage control has a greater valve plate located below a smaller valve plate, adjusting bars connected with the valve plates and arranged so that the adjusting bar of the greater valve plate extends through the interior of the adjusting bar of the smaller valve plate and both valve plates move to an open position from above downwardly, a leakage conduit having a portion located inside a valve housing and movable outwardly, an annular gap formed between the adjusting bars for flowing of cleaning fluid, and a return valve formed by the lower valve plate.