Portable heating apparatus
US4083673A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 1976 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | May 11, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/00264
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A portable heating apparatus includes a catalytic bed, a fuel for the catalyst and an electrical circuit operative at a preset time and throughout a predetermined duration of time for igniting the fuel. The circuit includes a transducer in the form of a resistive heating element connected to a source of power and a pair of switches, all arranged in series with the power source. One switch comprises a motor driven time indicator and the other switch comprises a timer which is manually latched closed and automatically unlatched upon closure of the time indicator. The duration of time during which the latter switch remains closed after unlatching may be adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.