Gas fires
US4573446A · kind A · utility
9Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1984 |
| Grant date | Mar 4, 1986 |
| Priority date | — |
| Expiry date | Jan 6, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24C15/001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention discloses an open gas fire having a gas burner, the combustion products of which are fed to a flue system via a heat exchanger for use in providing heated convection air. In the invention an adjustable baffle is arranged to vary the flow-through cross-section of the path of the combustion products to the flue system, thus matching the flue cross-section to the combustion products quantity, thereby reducing the quantity of cold air drawn into the front of the fire and improving thermal efficiency of the gas fire apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.