Shock absorber
US5234084A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1992 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Aug 20, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/3214
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved piston compression valve mechanism for a shock absorber includes a seal carrier member carried by the shock absorber piston and having a radially extending flange portion and a downwardly extending cylindrical portion, an o-ring seal mounted between upper and lower radially extending arms on the flange portion, and a coil spring mounted on the piston above the seal carrier member. The lower arm of the flange portion has an inner downwardly facing surface adapted to engage an upwardly facing valve seat on the piston, and the upper arm of the flange portion has an upwardly facing surface in force transmitting contact with the lower end of the coil spring. The cylindrical portion of the seal carrier member is provided with a plurality of flow openings spaced about its circumference and along its axial length which are normally in a closed position against the piston. During a compressive movement of the shock absorber, fluid in the compression chamber of the shock absorber increases its pressure on the outer downwardly facing surface of the flange portion, causing the seal carrier member to slide upwardly on the piston initially without spring resistance and then against i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.