Variably adjustable measured increment power dispensing apparatu

Details Variably adjustable measured increment power dispensing apparatu Variably adjustable measured increment power dispensing apparatu

1976-05-06

1978-01-10

Reeves, Robert B.

Dispensing

With discharge assistant

With discharge volume varying means

417507, 251 63, 222334, G01F 1106

Patent

active

040674843

ABSTRACT:
Power dispensing apparatus for dispensing measured increments of colorants, lubricants, stabilizers, etc., into casting, paint, and synthetic resin, etc., industrial processes having a block with a displacement chamber and bi-directionally air powered valves controlling inlet-supply and outlet-use ports in conjunction with a displacement rod reciprocating in the chamber. A case is connected to the block and has a reciprocating piston attached to the rod. Air pressure is fed to the case to reciprocate the rod in one direction and from the case to opposite positions on the air powered valves to cause one to open and the other to close to effect dispensing an increment of material to use. Air pressure fed to the case to move the piston and rod in the other direction is also fed to the air powered valves to close the one and open the other to draw in material from supply. An adjusting screw limiting the stroke of the piston renders the apparatus variably adjustable as to the quantity dispensed. In this way the valves are air powered in both directions and coordinated with the stroke of the displacement rod. Larger channel supply air pressure to the valves at a faster rate than is supplied by the small orifices to the cylinder and piston reciprocating the rod to insure that the valves are properly positioned before the rod moves to draw-in or expel material.

REFERENCES:
patent: 1566814 (1925-12-01), Bliss
patent: 3037245 (1962-06-01), Darnell
patent: 3622050 (1971-11-01), Acton et al.
patent: 3637116 (1972-01-01), Rutherford

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