Long life cover for heat chamber
AssigneeSchaefer Brothers Incorporated
InventorRobert Milluzzi
Life of this patent
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Abstract
A method and means of heat insulating the opening in a heat chamber, e.g., a soaking pit, comprises applying a cover including an inside lining of ceramic fibres, under a load which is selected so that the fibres contact a peripheral wall of the opening under a pressure which is sufficient to form a seal with the wall but insufficient to cause the fibres to be crushed.
Claims8
A method of heat insulating a heat chamber having an opening bounded by a peripheral wall by means of a cover applied to the opening, the cover having an inside lining of ceramic fibre to contact the peripheral wall and thereby close the opening, the method comprising the steps of:
- connecting the cover to a counterweight supported on a frame;
- selecting the mass of the counterweight relative to the mass of the cover and the lining such that the pressure between the lining and the peripheral wall is sufficient to form a seal therebetween, but is not sufficient to cause the lining to be crushed;
- and
- moving the cover to close the opening.
A heat chamber cover assembly, comprising:
- a heat chamber having an opening bounded by a peripheral wall;
- a framework means;
- a cover overlying the opening whereby the cover has an inside lining of ceramic fibre in contact with the peripheral wall;
- and
- a counterweight connected to the cover and to the framework means, whereby the counterweight is supported by the framework means, and the mass of the counterweight is selected relative to the mass of the cover and the lining such that the pressure between the lining and the peripheral wall is sufficient to form a seal therebetween, but not sufficient to cause the lining to be crushed.
Dependencies are inferred from the claim text.