E.g.o. Elektro Gerate Blanc U. Fischer

Wacker-chemie Gmbh

E.g.o. Elektro-geraetebau Gmbh

Bernhard Mikschl

Eugen Wilde

Robert Kicherer

Gunter Kratel

Thomas Eyhorn

Erich John

Guenter Kratel

Johann Klaus

Gerhard G/o/ Ssler

Horst Pfob

A shaped thermal insulation body comprises inorganic material. The shaped body has the following, weight-related composition: approx. 20 wt. % inorganic filling material: approx. 40 wt. % opacifier; approx. 10 wt. % fibrous material; and approx. 15 wt. % hardening agent as well as approx. 15 wt. % water. The shaped body only contains a small amount of fumed silica with a comparatively small BET surface. Water glass is excluded during its manufacture. It can be used as a spacer for radiant heaters.

Shaped thermal insulation body

A heat insulating molded body made of inorganic material and inorganic reinforcement fibers is disclosed, as well as a process for producing the same and its use. The molded body is characterized by the following composition: (a) 30-70 wt. % blown vermiculite; (b) 15-40 wt. % inorganic binder; (c) 0-20 wt. % infrared opacifier; (d) 15-50 wt. % microporous material; (e) 0.5-8 wt. % reinforcement fibers which contain maximum 2 wt. % B,O,and at most 2% alkalimetal oxide, based on the weight of the reinforcing fibers.

Heat insulating moulded body and process for producing the same

An electric radiant heater (11) for heating a glass ceramic cooking surface (12) contains a dish-shaped insulator (14), to whose inner bottom surface (18) are fixed heater coils (20). The heater coils have an oval cross-section and are pressed by their narrow sides into surface (18) and fixed. The fixing pressing in takes place during the moulding of the moist insulator (14), made from fibrous material and by means of a male mould receiving the heater coils in slots.

Electrical radiant heater for heating heating surfaces

An electrical heating element (18) for heating a plate, e.g. a glass ceramic plate (14) has a multilayer insulating support (12) in whose dish-shaped depression heater coils (18) are arranged in spiral form. The heater coils are located on the insulating support surface (17) and have downwardly directed deformations (19) comprising a turn pressed out in the downwards direction. These deformations (19) are embedded in the surface layer (16) of the insulating support, which is mechanically stronger and more thermally conductive than the underlying insulating layer (15). The deformations are produced in a mould (22, 23) carrying the heater coils in slots (21) and by means of a bladelike punch (24) a turn is pressed into a depression (25). The connection between heater coil (18) and insulating support (12) during the moulding thereof comprises a loose insulating material, the heater coil and deformations being placed in slots (27) of mould part (26).

Electrical heating element for heating a plate and process for the

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Sulzfeld, Germany

Bernhard Mikschl