Patent · US Active

Seal arrangement

US11255438B2 · kind B2 · utility

0Cited by

1References

6Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Olaf Nahrwold · Ludwigshafen, DE
Stefan Sindlinger · Weinheim, DE
Boris Traber · Hirschberg, DE
Sascha Moeller · Hamburg, DE

Key dates

Filing date	Aug 13, 2018
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Dec 21, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01M13/005
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A seal arrangement for sealing a gap between a machine element comprising a shaft and a housing includes: at least one sealing element formed, at least partially, from polymeric material. The at least one sealing element is of annular design and is made of PTFE. The at least one sealing element has at least one first annular element and at least one second annular element. The at least one first element is electrically conductive and the at least one second element is electrically insulating. The at least one first element is arranged axially adjacently to the at least one second element. The at least one sealing element is provided with electrically conductive contact elements. The housing has an installation space forming an annular groove for the at least one sealing element. The installation space is provided with a lining forming an insulation.

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