Energy damping device
US4955467A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1988 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Dec 21, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/09
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An energy damping device that includes a piston-cylinder assembly having a cylinder and a piston movable therein. A pre-loaded double acting spring, and a friction assembly, are enclosed fully within the cylinder, and engage the piston concentrically. The spring acts against the friction assembly for forcing it into frictional engagement with the inner surface of the cylinder. The friction assembly includes at least one wedge for engaging the interior surface of the cylinder. The friction assembly further includes a plurality of spaced-apart compression rings, that are interleaved with the wedges, for forcing them into radially outwardly directed frictional engagement with the interior surface of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.