Damper
US8689952B2 · kind B2 · utility
5Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2011 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Mar 2, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/145
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A damper includes a housing, a cap, a rotor portion, and blade portions projecting from the rotor portion. The blade portions include deformation portions in which the blade portions expand the diameter in one rotational direction in response to a resistance received from a viscous fluid, and in which the blade portions reduce the diameter in the other rotational direction. The blade portions engage a ring member provided on an inner circumference of the housing at a time of diameter expansion, and drag the ring member around.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.