Dispensing – With discharge assistant – With discharge volume varying means
Patent
1994-07-11
1995-10-17
Kashnikow, Andres
Dispensing
With discharge assistant
With discharge volume varying means
222334, 222389, 222559, G01F 1106
Patent
active
054582750
ABSTRACT:
A hand-held dispensing device for dispensing small shots of a semi-solid material from a remote supply of such material which is connected to the device. A housing is formed with upper and lower pressure chambers. An upper piston is reciprocally movable within the housing for moving a connected dispensing tube between open and closed positions with a material outlet opening in a lower end of the device. A lower piston is reciprocally movable within the housing for moving a hollow stem of the piston within an annular dispense chamber located about a closed end of the dispensing tube. Downward movement of the lower piston stem in coordination with upward movement of the upper piston opens and closes a material outlet port formed in the dispensing tube to block further flow of material into the dispense chamber generally simultaneously with the forced discharge of the material from the dispense chamber by a lower end of the lower piston stem. Air passages formed in the stem of the upper piston provide an inflow of pressurized air for controlling the downward movement of the lower piston and the upward movement of the upper piston.
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Centea Mark E.
Miller Kenneth L.
Kashnikow Andres
Kaufman Joseph A.
Liquid Control Corporation
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