Patent · US Expired

Hydraulic pressure generator

US4685301A · kind A · utility

13Cited by
7References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 17, 1986
Grant dateAug 11, 1987
Priority date
Expiry dateSep 17, 2006

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2025/081
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The piston of the generator (6, 8) has a smooth lateral surface and cooperates in sliding sealing engagement with a pair of seals (9a, 9b) fixedly mounted in annular grooves formed in the interior surface of the single bore (2) of the tubular body (1) of the generator. The bore opens at either end of the body and comprises, in its interior surface, at least one longitudinal groove (17) extending over the entire length of the bore, the bore being closed at one end by an obturator element (4) fitted onto the body (1).

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