System for dosing a viscous hardenable mass into a succession of

Details System for dosing a viscous hardenable mass into a succession of System for dosing a viscous hardenable mass into a succession of

1975-03-27

1976-09-07

Tollberg, Stanley H.

Dispensing

Processes of dispensing

141158, 141248, 222146H, 222217, 222255, 222318, 222381, B67D 552

Patent

active

039790215

ABSTRACT:
A housing has a compartment subdivided by a pair of sleeve valves into an input compartment to which is continuously fed a stream of viscous hardenable material and an output compartment arranged adjacent a transport device which step-wise advances a succession of containers. Each of these sleeve valves has a central piston and has a valve port that can be directed either into the input compartment or the output compartment. Thus one of the sleeves is turned with its port toward the input compartment and its piston is retracted to draw into the sleeve a predetermined quantity of the viscous mass. Thereupon the sleeve is rotated through 180.degree. and this portion is discharged into the output compartment and thence into one of the containers. While this one sleeve is turning and discharging the other sleeve is turned toward the input compartment and is itself drawing in a second portion of hardenable mass which it subsequently discharges into the output compartment as the first sleeve again draws in a portion. One wall of the input compartment is formed by a loaded piston that normally covers an overflow opening so that if the input feed increases above a predetermined level the piston will be displaced to uncover this overflow opening and allow the hardenable mass to flow out of the housing.

REFERENCES:
patent: 2972435 (1961-02-01), McCarty
patent: 3322167 (1967-05-01), Rosen
patent: 3583603 (1971-06-01), Freckmann et al.

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