Amplitude sensitive damper apparatus
US8201669B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Aug 5, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/5126
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An amplitude sensitive damper apparatus that is provided with an amplitude sensitive valve unit may include a plug coupled to a piston rod to form a spring groove with the piston rod in a predetermined section, a spool member configured and dimensioned to cover the spring groove and slidably coupled to the piston rod to move up and down along the piston rod, wherein the spool member includes a supporting portion that protrudes toward the piston rod from a middle portion of an inner surface of the spool member, upper and lower elastic members that are mounted inside the spring groove to support the supporting portion of the spool member upwards and downwards respectively along the piston rod, and an amplitude sensitive valve that is integrally mounted on an outer surface of the spool member to generate a damping force when the spool member is moving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.