Patent · US Expired

Sealing arrangement for a rotating shaft

US5108715A · kind A · utility

17Cited by

10References

31Claims

0Family size

Assignee

Ekato Industrieanlagen Verwaltungsgesellsch · DE

Inventors

Herbert Jekat · Zell im Wiesental, DE
Detlee Klatt · Schopfheim, DE
Erich Todtenhaupt · Schopfheim, DE

Key dates

Filing date	May 31, 1989
Grant date	Apr 28, 1992
Priority date	—
Expiry date	May 31, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S422/903
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In an apparatus for treating aggressive, explosive, radioactive or toxic material or solid suspensions within a container and having a rotatable shaft supported in a housing and having one end projecting into the container and another end acted upon by a drive element, an arrangement for sealing the support and the drive element of the shaft includes a mechanical seal arranged between the shaft and the housing in the area of the container, and a static, hermetically closing sealing element arranged in the area of the drive element between the shaft and the drive element, on the one hand, and the housing, on the other hand. The interior space of the housing is filled with a lubricant which is maintained at a pressure corresponding or exceeding the pressure in the container.

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