Hydraulic shock absorber
US4044865A · kind A · utility
25Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1976 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | May 25, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/486
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic shock absorber includes a cylinder, a piston therein, a sleeve surrounding the cylinder wall and provided with an internal thread, the crest of which engages the cylinder wall, possibly a storage chamber for liquid provided outside the cylinder and connected to the slot of the thread, at least one cylinder chamber in communication with the slot of the thread through at least one narrow opening which may be throttled more or less by the crest of the thread, when the cylinder and the sleeve are rotated mutually.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.