Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Patent
1975-06-05
1976-06-15
Croyle, Carlton R.
Pumps
Condition responsive control of pump drive motor
Responsive to accumulation of pumped liquid in receiver
417 89, 4171825, 4172115, 417505, F04F 548, F04B 4904
Patent
active
039633764
ABSTRACT:
An automatic water powered sump drainer comprises valve means, a float assembly, a venturi, means connecting one side of the sump drainer to a water supply, and means connecting the other side of the sump drainer to a drain outlet. The valve means is supported in spaced relation to a sump hole and has operatively connected thereto the float assembly which includes a float ball positioned within a sump hole and connected to the valve means for movement between two extreme positions. Motion of the float ball is transmitted to the valve means and effects movement of a permanent magnet therein which in conjunction with armature means controls a diaphragm which opens or closes a through passage in the valve means. The venturi is formed in this through passage and is operable to cause water located in a sump hole to be withdrawn therefrom. Tube means have one end connected in fluid flow relation with the through passage in the valve body on the downstream side of the venturi and in close relation thereto, the other end thereof lying below the water level in a sump hole and preferably having an anti-clog screen mounted thereabout.
REFERENCES:
patent: 998647 (1911-07-01), Smith
patent: 1177270 (1916-03-01), Pursell
patent: 1230972 (1917-06-01), Woodworth
patent: 1988656 (1935-01-01), Henderson
Croyle Carlton R.
Gluck Richard E.
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