Drain trap valve mechanism

Details Drain trap valve mechanism Drain trap valve mechanism

1978-05-18

1980-03-11

Schwadron, Martin P.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137449, 137192, 251279, 251280, F16K 3126

Patent

active

041923413

ABSTRACT:
A float actuated valve mechanism for automatically removing a predetermined amount of accumulated liquid condensate from a sump area of a gas pressurized drain trap or the like so as to regulate the level of liquid in such a sump area. A four-bar linkage between a float and a valve plug provides a non-linearly varying mechanical advantage throughout the movement of the float. In a closed position the valve plug mates with a rigid seating surface and an elastomeric seating surface to provide a wear-resistant seal.

REFERENCES:
patent: 1529140 (1925-03-01), Muller
patent: 1893859 (1933-01-01), Gleason et al.
patent: 2092670 (1937-09-01), Hess et al.
patent: 2790456 (1957-04-01), Shaw et al.
patent: 3324878 (1967-06-01), Dill
patent: 3363643 (1968-01-01), Skulski
patent: 3599659 (1971-08-01), Nuter
patent: 3835882 (1974-09-01), Barker et al.
patent: 3916945 (1975-11-01), Bennett

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