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. 25, 1990
Filed:
May. 26, 1989
Applicant:
Inventors:
Wolfgang Krambrock, Vogt, DE;
Helmut Bercx, Wolfegg, DE;
Assignee:
AVT Anlagen- und Verfahrenstechnik GmbH, Weingarten, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ; F16L / ; F16K / ;
U.S. Cl.
CPC ...
277 27 ; 137375 ; 251172 ; 277 34 ; 277 71 ; 277 79 ; 277177 ; 277205 ; 277209 ;
Abstract
A ring seal on moved machine parts, in particular for use on a rotary slide valve, is proposed, which is formed by a pressurized annular channel (11) with a ring seal (12). In a connection flange (10), for this purpose an annular channel (11), parallel to the center axis (19), is formed with a pressure space (15) for pressurization of the ring seal (12).