Heating – Heating apparatus element having protective cooling structure – Wall – floor or roof element
Patent
1975-07-03
1977-01-18
Camby, John J.
Heating
Heating apparatus element having protective cooling structure
Wall, floor or roof element
432241, 425 77, 13 31, 13 32, 266253, F27B 504, F27D 112
Patent
active
040036979
ABSTRACT:
A pressure furnace for treating products at high temperature and high pressure includes a high pressure chamber formed of a vertical high pressure cylinder with end closures projecting into the cylinder and a press stand with a window aperture which is somewhat larger than the height of the high pressure chamber when the end closures are fully inserted for enclosing the high pressure chamber during the pressing operation. A support member is provided which holds the pressure chamber in such a position that gaps are formed between the press stand and the end closures when the latter are moved into their innermost positions in the chamber. The lower end closure is at least in part removable and includes a bottom portion provided with cooling channels, with a stationary and a movable connection unit for connecting the bottom portion to a coolant source. The movable unit is displaceable between a connected position in contact with the stationary connection unit and a release position. Valve members are arranged in the connection unit, which, in released position, close the passage through the connection unit, but are opened when the movable connecting unit is moved towards the stationary connecting unit. The movable connecting unit also holds in position a disc-like central portion of the bottom closure which fits within an annular outer portion.
REFERENCES:
patent: 2269595 (1942-01-01), Miller
patent: 2869856 (1959-01-01), Greene
patent: 3020032 (1962-02-01), Casey
patent: 3732068 (1973-05-01), Larker
patent: 3775043 (1973-11-01), Johansson et al.
patent: 3836325 (1974-09-01), Nakamura et al.
patent: 3940245 (1976-02-01), Smith, Jr. et al.
Allmanna Svenska Elektriska Aktiebolaget
Camby John J.
Yuen Henry C.
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