Fluent material handling – with receiver or receiver coacting mea – Processes – Filling dispensers
Patent
1988-02-25
1990-04-03
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
Processes
Filling dispensers
141 11, 141 9, 141 20, 141 69, 141100, 141104, 141105, 366332, B65B 304, B65B 3100
Patent
active
049131974
ABSTRACT:
In order to fill a container having a check valve with a spontaneously foaming filling material, the latter is introduced through the check valve already mounted at the container. In a piston arrangement as the filling device, filling material to be filled in is sucked into a mixing chamber (65) by means of a metering piston (60), foam gas is injected through the piston rod (58) of this piston, filling material and gas are mixed by means of a mixing piston (56), then forced by means of the metering piston (60) through the check valve into the container. This prevents frothing of the filling material, intermixed with foam gas, at any point in time between mixing and filling. During mixing, slight foaming is desirable in order to increase the absorption capacity for the foam gas.
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Cusick Ernest G.
Hafesto AG
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