Rack and pinion wheel drive for an industrial sliding blade damper
US7413163B2 · kind B2 · utility
4Cited by
28References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2004 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1967
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention discloses improvements to a damper of the type used in industrial applications to open and close ducts carrying noxious or corrosive materials, such as combustion by-products. The improvements include a linear rack and wheeled pinion system to raise and lower a damper blade plate and improvements to the seal cartridge to prolong the life of the seal membrane and to prevent galling between the blade plate and the seal cartridge or damper frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.