Radiant electric heater with fabric covering sheet
AssigneeCeramaspeed Limited
InventorsPeter Ravenscroft Wilkins, David Aubrey Plumptre
Life of this patent
Estimating the term…
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 alumino-silicate 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.
Claims18
A radiant electric heater including an inner base wall and a peripheral wall projecting outwardly therefrom to cooperatively define an outwardly opening cavity;
- at least one heating element contained in the cavity;
- and at least one covering fabric sheet operatively supported by the peripheral wall in overlying relationship to the cavity and separated from the heating element by an air space, the base wall and peripheral wall being formed of thermal insulating material, and the at least one fabric covering sheet being formed of filaments selected from ceramic filaments and metal filaments.
A radiant electric heater including an inner base wall and a peripheral wall projecting outwardly therefrom to cooperatively define an outwardly opening cavity;
- at least one heating element contained in the cavity;
- and at least one covering fabric sheet operatively supported by the peripheral wall in overlying relationship to the cavity and to an outer surface of the peripheral wall, and separated from the heating element by an air space, the base wall and peripheral wall being formed of a microporous thermal insulation material, and the at least one fabric covering sheet being formed of filaments selected from ceramic filaments and metal filaments.
Dependencies are inferred from the claim text.