Patent · US Expired

Method of fabricating a liquid spring shock absorber with integral plastic body and seal

US4628579A · kind A · utility

18Cited by
16References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 1, 1981
Grant dateDec 16, 1986
Priority date
Expiry dateApr 1, 2001

Classification

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

Abstract

A liquid shock absorber device including a plastic cylinder having first and second ends, a piston rod having a first end within the cylinder and a second end externally of the cylinder, a plastic seal formed integrally with the cylinder at the first end and defining an opening for receiving the piston rod in sealing relationship, a closure for closing the second end of the cylinder, and fluid in the cylinder. The closure on the second end may have a piston associated therewith for preloading the fluid.

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