Fluid-filled unit of a cylinder and a piston rod, in particular gas spring
US5806840A · kind A · utility
2Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Oct 24, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/0227
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas spring having a cylinder and a piston rod. A piston mounted on a piston rod is provided with flexible tongue, rounded ends of which elastically bear on the inside wall of the housing while the rest of the piston is free from the housing. The flexible tongues assist in preventing partial cylindrical faces of the piston from smashing against the inside wall of the piston housing when the gas spring is vibrating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.