Seal arrangement for high temperature furnace applications

Details Seal arrangement for high temperature furnace applications Seal arrangement for high temperature furnace applications

1988-09-14

1989-06-20

Yuen, Henry C.

Heating

Processes of heating or heater operation

Including repairing, converting or assembling apparatus

432247, 432205, 432 78, F27D 116

Patent

active

048405590

ABSTRACT:
A seal arrangement is disclosed for use in a furnance which utilizes a thin, cylindrical imperforate shell member which is heated from an external source to heat work placed within the shell. An insulated arrangement within and outside of the shell extends a spaced distance from the shell's opening to sandwich the shell's wall therebetween. The arrangement prevents heat flux by radiation and convection from heating the sandwiched wall thus permitting graded cooling of the sandwiched shell wall by conduction to a temperature whereat a conventional elastomer seal can be employed to seal the shell member.

REFERENCES:
patent: 2791415 (1957-05-01), Huppert
patent: 3940245 (1976-02-01), Smith, Jr. et al.
patent: 3971875 (1976-07-01), Regalbute
patent: 4212633 (1980-07-01), Kreider et al.
patent: 4427378 (1984-01-01), Bowers
patent: 4527974 (1985-07-01), Carraroli et al.
patent: 4600378 (1986-07-01), Fujita et al.

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