Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1987-09-29
1989-01-10
Echols, P. W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
165169, 220 68, 220428, B21D 5300
Patent
active
047963441
ABSTRACT:
The present invention minimizes the problem of thermal stresses in a glass lined vessel by providing a heat transfer sump in the bottom portion of the vessel. A heat transfer compartment is formed by enclosing the annular space between the exterior portion of the skirt and the bottom portion of the vessel by means of an annular ring. The heat transfer compartment is enclosed by the annular ring, the interior portion of the skirt, and the bottom portion of the vessel. The heat transfer compartment is adapted to receive and hold a heat transfer medium and in this manner form a heat transfer sump.
REFERENCES:
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patent: 4140073 (1979-02-01), Androulakis
patent: 4473171 (1984-09-01), Nunlist
Cuda Irene
Dunn Michael L.
Echols P. W.
Ellis Howard M.
Studley Donald C.
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