Hot spot butane heater
US4378783A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1980 |
| Grant date | Apr 5, 1983 |
| Priority date | — |
| Expiry date | Jul 29, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6133
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A portable heater, and component parts thereof, is provided that is capable of safely generating large amounts of heat over a relatively long time frame without significant amounts of pollution. A source of combustible gas, such as a canister of liquefied butane, is in operative communication with a combustion chamber through a control valve. The combustion chamber comprises an elongated tubular member concentric with a chimney. Air and combustible gas are drawn into the bottom of the tubular combustion chamber and combust without flame on a plurality of metal heat-resistant screens. A simple relative rotation between top and bottom casing components controls the flow of gas. A removable piezoelectric igniter is mounted on top of the heater to effect ignition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.