Patent · US Expired

Variable speed cylinder assembly pressure seals

US4359930A · kind A · utility

0Cited by
6References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 4, 1981
Grant dateNov 23, 1982
Priority date—
Expiry dateMay 4, 2001

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF15B15/16
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A variable speed multi-cylinder assembly is provided with expandable bushing seals to block leakage of fluid from higher speed stages to lower speed stages.

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