Patent · US Expired

Shock absorber with external air cylinder spring

US6311962A · kind A · utility

188Cited by
15References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 30, 1998
Grant dateNov 6, 2001
Priority date
Expiry dateNov 30, 2018

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16F9/062
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A gas spring shock absorber (10) includes a damping fluid cylinder (14) telescopically housed within a gas cylinder (12). A shaft (16) connects a sealed, outer end (18) of the gas cylinder (12) with a vented piston (32) movably mounted within damping fluid cylinder (14). Shaft (16) passes through a sealed inner end (28) of damping fluid cylinder (14) so that a sliding seal (34) located between gas cylinder (12) and damping fluid cylinder (14) creates a sealed variable-volume gas cylinder (40) between the cylinders.

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