Variable flow volume control baffle and vent damper
US5682841A · kind A · utility
7Cited by
5References
11Claims
0Family size
Inventors
Key dates
| Filing date | Jan 16, 1996 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Jan 16, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H9/0026
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Apparatus for improving the efficiency of a water heater having a tank, a burner and a flue, the flue being disposed within the tank for evacuation of burned combustion gases therethrough with resulting heating of water in the tank, generally including combustion gas deflector for enhancing heat transfer from the combustion gases through a flue wall and into surrounding water during ignition of the burner, a vent damper for preventing ambient air in the flue, heated by the directing means and flue, from escaping the flue during nonignition of the burner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.