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:
Aug. 01, 1978
Filed:
Sep. 29, 1977
Applicant:
Inventors:
Michael Hoffman, Berlin, DE;
Rolf Pape, Berlin, DE;
Assignee:
Borsig Gesellschaft mit beschrankter Haftung, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16K / ;
U.S. Cl.
CPC ...
277101 ; 277104 ; 2771162 ; 277124 ; 277205 ; 251214 ;
Abstract
A seal for a drive journal of a ball valve. The elements which directly carry out the sealing action are arranged below a thrust collar which is directed against the cover of the ball valve and is displaceable in the axial direction with the aid of set screws which extend through the cover. The sealing ring is a U-ring which abuts the thrust collar and the walls of the drive journal and the housing. The U-ring is provided with an annular slot which is open toward a thrust ring and, at its deepest portion, has a metallic compensating ring followed by a spiral ring.