Fluent material handling – with receiver or receiver coacting mea – Automatic control of flow cutoff or diversion – Level or overflow responsive
Patent
1989-12-29
1991-03-12
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
Automatic control of flow cutoff or diversion
Level or overflow responsive
141213, 141215, 141220, 137416, 137434, 137410, 137448, F16K 3118
Patent
active
049985710
ABSTRACT:
An overfill valve apparatus for use in a liquid storage container having a fill pipe includes an upper fill tube and a lower drop tube. A closure valve is positioned intermediate the fill tube and the drop tube. The valve includes a valve head moveable between a first open position and a second closed position. A float is attached to the valve head and is moveable from a first position when the container liquid level is less than a predetermined level and a second position when the container fills with fluid to a predetermined level. Movement of the float towards its second position produces movement of the valve head toward its closed position. The float also is moveable within an envelope corresponding to a diameter less than the diameter of the fill pipe to facilitate apparatus installation and removal. The valve head is mounted internally of a hollow shell. The shell includes in at least a portion which is inwardly flexible to form a pocket accommodating the float during apparatus installation and removal, and outwardly flexible during fluid flow so as to conform to a side wall of the shell to present a uniform, non-flow restrictive shell diameter during such flow.
REFERENCES:
patent: 2340936 (1944-02-01), Cook
patent: 2569110 (1951-09-01), McGillis et al.
patent: 3078867 (1963-02-01), McGillis et al.
patent: 3963041 (1976-06-01), McGillis et al.
patent: 4667711 (1987-05-01), Draft
Blue Barry M.
Blue James P.
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