Dual-rate linear damper
US5535861A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1995 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Jun 8, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/09
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A plurality of embodiments of dual-rate linear dampers which can be utilized as hold open rods. These dampers provide significantly greater resistance to movement in one direction than in the other and, in one embodiment, effectively lock in the hold open position unless and until the design breakover force is incurred. The comparative resistance to movement in the two linear directions can be altered within the range of between five and ten times the force in the resistive embodiment by varying a number of parameters including, but not limited to, the number of disks in the string, the thickness of the disk flange, the number and depth of grooves in one or both surfaces of the flange, the tapering of the flange, and the properties of the elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.