Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means
Patent
1981-11-12
1984-01-03
Davis, Jr., Albert W.
Heat exchange
With alarm, indicator, signal, register, recorder, test or...
Remotely controlled inspection means
165 40, 165114, 203 1, 202202, F28F 1300, F28B 1100
Patent
active
044237669
ABSTRACT:
Apparatus for condensing vapors at reduced pressure including a cooled vapor condenser having a liquid level sensor therein with a vacuum pump being connected by way of a control valve for drawing vapor from the vapor chamber of the condenser. The liquid level sensor opens and closes the control valve to control drawing of vapor from the vapor chamber in accordance with the level of liquid in the condenser.
REFERENCES:
patent: 1778921 (1930-10-01), Swartz et al.
patent: 1897398 (1933-02-01), Raymond
patent: 2848197 (1958-08-01), Evans, Jr. et al.
patent: 4159227 (1979-06-01), Sundquist
patent: 4181577 (1980-01-01), Foley
patent: 4232598 (1980-11-01), Harlow et al.
Bernhardt Karl-Heinz
Strzala Helmut
Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH
Davis Jr. Albert W.
Dotson S. Gayle
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