Shock absorber
US3944031A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1974 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Jun 18, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Shock absorber comprising a casing delimiting an inner recess having two portions of different diameters and containing a liquid, a piston assembly consisting of two pistons of slightly different diameters mounted on the same rod and slidable into said recess, the larger of said pistons being traversed by a channel for liquid passage, a liquid reservoir either inside the rod or outside the casing, in communication with the inner recess through a further channel, sealing structure tightening the recess from the external medium and an element in the reservoir which is compressed or expanded in response to a change in the pressure of the liquid contained in the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.