Electrical heater
US6023554A · kind A · utility
360Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1998 |
| Grant date | Feb 8, 2000 |
| Priority date | — |
| Expiry date | May 18, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C2101/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A heater is disclosed, the heater comprising: a heating element effective to generate radiant energy; a casing surrounding the heating element separated from the heating element; and support material between the casing and the heating element wherein the support material comprises a granular solid material that is translucent to radiant energy in the peak wavelength of energy which is radiated by the heating element at operating temperatures. The translucency of the support material is such that at least 50% of the radiant energy emitted by the heating element is radiated to the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.