Method and apparatus for filling valve bags

Details Method and apparatus for filling valve bags Method and apparatus for filling valve bags

1978-06-07

1980-08-26

Schmidt, Frederick R.

Fluent material handling, with receiver or receiver coacting mea

Processes

Bag filling

53469, 53570, 141 68, 141 90, 141 98, 141285, B65B 118, B65B 128

Patent

active

042190541

ABSTRACT:
A method and system for filling and for sealing valve bags of the type having a water activated sealing means on the interior of the filling valve. A fill spout or nozzle is provided to maintain the filling valve free from contamination by the material being dispensed into the bag. The nozzle has an air conduit that supplies air to a location adjacent the water activated sealing means during the filling operation and a water spray conduit that supplies a water spray to activate the sealing means at completion of the filling operation. A suction source is connected to the material supply passage of the nozzle and is actuated momentarily while the nozzle is being removed from the filling valve and prior to the end of the filling valve entering the water activated region of the valve in order to prevent material from falling from the end of the nozzle onto the activated portion of the sealing means. A sealing nozzle separate from the filling nozzle is also disclosed.

REFERENCES:
patent: 3707172 (1972-12-01), Obara

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