Wood burning stove
US4469083A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1981 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Jun 5, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24B5/026
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A stove for burning solid fuel such as firewood. a lower level air inlet opening is provided for so-called "primary air," and another air inlet opening is provided at a higher level for so-called "secondary air." The volume of air introduced into the stove from each inlet opening is separately controlled. An air metering means controls the amount of secondary air introduced into the stove through the higher level air inlet opening. The lower level air inlet opening and the air metering means both have a finite number of predetermined, fixed air transmitting conditions and no other air transmitting conditions. The lower level air inlet opening has preferably two predetermined, fixed air transmitting conditions--a maximum and a minimum. The air metering means has at least a predetermined, fixed maximum air transmitting condition and preferably also a predetermined, fixed minimum, transmitting condition. The level at which the two air inlet openings are located is specified. The cross-sectional area of the air passageway provided by the air metering means is carefully controlled in relation to the volume of the fire chamber. This is done either dimensionally or by a trial-and-error me…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.