Patent · US Expired

Method for the manufacture of a shaft seal

US5462287A · kind A · utility

23Cited by

6References

9Claims

0Family size

Assignee

DICHTUNGSTECHNIK G. BRUSS GMBH & CO. KG · DE

Inventors

Jurgen Hering · Sievershütten, DE
Rolf Johnen · Wiemersdorf, DE
Gerd Upper · Hoisdorf, DE

Key dates

Filing date	Mar 11, 1994
Grant date	Oct 31, 1995
Priority date	—
Expiry date	Mar 11, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F11/007
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A seal for sealing the end of a shaft passing out of the end wall of a casing, as well as for sealing the end wall, is characterized in that a gasket receptacle is manufactured as a light metal pressure die casting, that a polytetrafluoroethylene sealing member is pressed from one side of the gasket receptacle towards which a recess is open and the radially outer portion of the shaft seal ring is injected round on either side with an elastomer material via a connecting channel of the die casting towards an end wall-side groove for receiving a static gasket during its moulding to the gasket receptacle. In the final operating stage, the sealing lip of the sealing member penetrated by a tube is bent axially by drawing onto a sleeve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.