Vent damper apparatus
US6868806B1 · kind B1 · utility
4Cited by
9References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jul 28, 2003 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Jul 28, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H1/205
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A vent damper apparatus provided for limiting flow of ambient air in a flue of a water heater. The apparatus generally includes a base structured to be connected to a water heater, and a damper assembly, extending from the base and structured to be responsive to a variable flow of exhaust gasses passing from a flue of the water heater. The damper assembly includes a plurality of independently movable dampers, and a frame structured to provide support to the plurality of independently movable dampers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.