Damper
US5072813A · kind A · utility
43Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1990 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Feb 15, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/504
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A damper includes a cylinder, a partition member for partitioning the interior of the cylinder into two liquid chambers, an orifice for generating a damping force by flow of liquid, and a bypass path affording communication between the two liquid chambers. The damper further includes a mass body attached to the partition member that is movable in an axial direction of the cylinder and biased to close the bypass path. The speed of the mass body when opening the bypass path is faster than the speed of the mass body when closing the bypass path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.