Dispensing – With discharge assistant – With discharge volume varying means
Patent
1998-10-27
2000-06-27
Shaver, Kevin
Dispensing
With discharge assistant
With discharge volume varying means
222334, 222409, G01F 1100
Patent
active
060795964
ABSTRACT:
The metering assembly for metering and dispensing non-solid material includes a metering cylinder, an air cylinder, and an air actuator. The metering cylinder has a metering body with a bore and an inlet/outlet port which is in communication with the bore. The metering cylinder includes a displacement rod which has a first end positioned in the bore and an opposed second end. The displacement rod has a first position where the first end of the rod is adjacent to the bottom of the bore and a second position where the first end is spaced from the bottom of the bore. The displacement rod moves between the first and second positions with movement from the first position toward the second position defined as movement in a filling direction and movement from the second position toward the first position defined as movement in a dispensing direction. The metering cylinder also includes a seal for sealing the rod to the bore. The air cylinder is supported in a position spaced from the metering cylinder and includes an air cylinder body and an air cylinder rod extending from the air cylinder body toward the metering cylinder. The air cylinder rod has an actuator end connected to the second end of the displacement rod for movement therewith in the filling and dispensing directions. The air cylinder is operable to move the air cylinder rod such that the actuator end moves in the dispensing direction and urges the displacement rod of the metering cylinder in the dispensing direction. The air actuator includes an inlet port for connection to a reservoir of non-solid material being metered and dispensed, an outlet port for connection to a dispenser for dispensing the non-solid material, and a switched port which is connected to the inlet/outlet port in the metering body. The air actuator has a first position wherein the inlet port is connected with the switched port and a second position wherein the outlet port is connected to the switched port.
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Deal David
J. Dedoes, Inc.
Shaver Kevin
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