Radiant electric heater with fabric covering sheet
US6067404A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Oct 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/748
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A radiant electric heater (1) includes a heating element (4) and at least one covering sheet (7) spaced from the heating element. The at least one covering sheet is in the form of a fabric comprising glass filaments, ceramic filaments or metal filaments. Metal filaments, such as of a high temperature withstanding alloy, may be woven in the form of a fabric. Glass filaments, or ceramic filaments such as of aluminosilicate material, alumino-boro-silicate material or zirconia, may be of woven, knitted or mat form in the fabric. An apertured member (10) may be provided in contact with, or adjacent, to the covering sheet (7) of the fabric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.