Patent · US Expired

Hydraulic cylinder with an electrical contacting and sealing ring

US5560278A · kind A · utility

11Cited by
21References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 11, 1994
Grant dateOct 1, 1996
Priority date
Expiry dateOct 11, 2014

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S277/941
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A coaxial capacitor contacting and sealing structure, for electrical continuity between parts that move in relation to each other at the ends of a cavity within a hydraulic cylinder employing electromagnetic wave position sensing. The structure employs a contacting and sealing member having a high surface conductivity that is mounted in one of the parts. The mounting of the contacting and sealing member provides force for pressure contact in oil between the parts and to enhance electrical continuity with the part in which the contacting and sealing member is located.

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