Electric heating apparatus for heating thermoplastic articles
US4052593A · kind A · utility
Inventor
Key dates
| Filing date | Jun 23, 1975 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | Jun 23, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/0085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for electrically heating thermoplastic articles includes a housing having means for receiving the article in position to be heated. An infrared generator in the form of a tungsten halogen lamp is located in the housing and a split, out-of-phase parabolic reflector system is provided for directing the radiation from the lamp onto plural sides of the article. A blower in the housing provides a flow of cooling air over the lamp and reflector system. A thermal control means responsive to the combination of radiant heat absorbed from the lamp and the cooling effect of the flow of air is provided for cycling the lamp on and off to control the radiant energy emitted therefrom. The lamp may be surrounded by a foraminous thermal converter which allows some of the direct radiation from the lamp to filter through to be directed to the article and interrupts and absorbs the remainder of the radiation converting it to heat which is picked up by the air flow for delivery to the article being heated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.