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:
May. 26, 1987
Filed:
Oct. 03, 1986
Hans Deuring, Burscheid, DE;
Goetze AG, Burscheid, DE;
Abstract
A shaft seal assembly adapted for installation on and concentrically with a rotary shaft for sealing off a chamber laden with a gas/liquid mixture from a space situated externally of the chamber. The assembly has a chamber side and an air side and further comprises a sealing lip circumferentially surrounding a stationary part of the assembly; a labyrinth sealing ring situated axially adjacent the sealing sleeve on the chamber side of the assembly. The labyrinth sealing ring comprises a rotary wall component and a stationary wall component together defining a labyrinth gap formed of a plurality of consecutive axial and radial passages for guiding the mixture in a path having a plurality of radial and axial deflections. The shaft seal assembly further has a liquid return device situated between the sealing lip and the labyrinth sealing ring as viewed along a path of propagation of the mixture in the assembly; and a radially oriented, operationally stationary return channel situated between the sealing lip and the labyrinth sealing ring for returning liquid from the assembly into the chamber in a radially outward direction.