Noise reduction spoiler for a damper
US4688472A · kind A · utility
15Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Oct 31, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F13/24
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A spoiler is located on the damper blade of a damper assembly such that it serves to divert the flow from the hinge area to avoid air separation. Further, the spoiler does not define the most restricted portion of the flow path and thereby has a minimal effect on the flow resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.