Liquid level control

Fluid handling – With heating or cooling of the system – With electric heating element

Patent

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Details

137392, 137393, 307118, 361178, 219324, F16K 4900

Patent

active

044911467

ABSTRACT:
Improved apparatus for providing both a liquid level control and a low water cut-off for boilers and the like, having only a single probe and a single relay.

REFERENCES:
patent: 2667178 (1954-01-01), Fred et al.
patent: 3269364 (1966-08-01), Higgins
patent: 3734123 (1973-05-01), Pomerontz
patent: 3780261 (1973-12-01), Eaton-Williams
patent: 4034203 (1977-07-01), Cooper
patent: 4139762 (1979-02-01), Pohrer et al.
patent: 4259982 (1981-04-01), Bartels

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