Shock absorbing jack, a stay comprising it and landing gear equipped with such a stay
US4821983A · kind A · utility
27Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Dec 9, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2025/325
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The shock absorbing jack of the invention includes essentially a rod in which a sliding piston defines an extension chamber and which itself slides in a body by means of a piston defining a retraction chamber, the body including a throttling device and, on the side opposite the rod, two high and low pressure gas chambers, these chambers being separated by a membrane bearing, at rest, on a support with hemispherical perforated bottom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.