Radiant heater for processing of polymers
US5711089A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Oct 4, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B17/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention comprises a radiant heater for use in thermally processing granular polymers and powders. The heater comprises an enclosed air-tight case for housing the reflector, the electrical and structural elements, and the lamps and lamp chamber. These comonents are all enclosed behind a quartz window, and the components and lamp chamber are forced air cooled. A plurality of air passages are provided for the case at the junctures of the window edges and surrounding wall portions of the case. These passages form air venting openings or nozzles which serve to discharge the gaseous coolant in the form of high velocity jet streams which are directed along the outside surface of the window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.