Pneumatic control apparatus
United States Patent 2501957
US Patent References:
Pilot means for liquid level controls and the like
- - 2356970
Antibackflow and antisiphonage valve
- - 2389412
Pilot means for liquid level controls and the like
- - 2356970
Antibackflow and antisiphonage valve
- - 2389412
Inventors:
Moore, Coleman B.
Publication Date:
03/28/1950
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Assignee:
MOORE PRODUCTS CO
Primary Class:
Other Classes:
92/103F, 92/97, 92/103R
International Classes:
F15C3/04; F16J3/02; F15C3/00; F16J3/00