Patent · US Active

Shaft seal and method for producing a shaft seal

US9726291B2 · kind B2 · utility

3Cited by

7References

9Claims

0Family size

Assignee

Karl Storz GmbH & Co. KG · DE

Inventors

Hubert Sonleiter · Markdorf, DE
Raphael Spycher · Winterthur, CH

Key dates

Filing date	Aug 18, 2014
Grant date	Aug 8, 2017
Priority date	—
Expiry date	Aug 18, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49844
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A shaft seal includes a radially outward flange area and a radially inward sealing lip connected to the flange area. An annular spring with a U-shaped or V-shaped cross section is arranged on a radial outer face of the sealing lip, wherein an outer limb bears on the flange area and an inner limb bears on the sealing lip, and wherein a surface of the spring exposed to an exterior of the shaft seal is coated with an elastomer. The invention also relates to a method for producing a shaft seal.

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