Temperature compensated safety gas spring
US5722643A · kind A · utility
15Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Mar 7, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2222/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas spring includes a piston assembly or pack having an additional seal, pressure relief valve, and check valve that increases the output force of the gas spring. Various temperature compensation structures, also added to the piston pack, permits this increase to vary from zero at higher ambient temperatures to a maximum value at very cold temperatures thus achieving a temperature compensation, which varies, in an analog manner, inversely in response to the temperature changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.