Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1999-09-13
2000-06-27
Pelham, Joseph
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219391, 219399, 126 19R, A21B 102, A21B 300, F24C 1534
Patent
active
060809663
ABSTRACT:
An oven muffle has mutually spaced apart inner and outer insulating walls. An insulation layer composed of particulate material is disposed in an interstice between the inner and the outer insulating walls. At least one of the insulating walls is pretensioned toward the respective other insulating wall in order to exert a permanent pressure on the insulation layer.
REFERENCES:
patent: 3782360 (1974-01-01), Brucken
patent: 4880952 (1989-11-01), Hirai et al.
Mallinger Peter
Roch Klemens
BSH Bosch und Siemens Haus-geraete GmbH
Greenberg Laurence A.
Lerner Herbert L.
Pelham Joseph
Stemer Werner H.
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