B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
141/17, 226/21
B08B 3/02 (2006.01) B65B 31/06 (2006.01) B65B 55/24 (2006.01)
Patent
CA 1139641
Abstract of the Disclosure A method and apparatus are disclosed for treating flexible pouch-like containers prior to heat sealing of the containers. The method comprises simultaneously injecting superheated steam into a filled container to evacuate air from the container and directing pressurized steam at the inside edge of the container which is to be heat sealed to remove contaminants from this region. Optionally, the method of the present invention may also include a simultaneous directing of steam under pressure to the outside edge of the container in the heat sealing region to enhance the cleaning operation. The apparatus for accomplishing this result comprises a nozzle having a first chamber through which steam may be injected into the container and a second chamber having a plurality of openings through which steam under pressure may be directed against the inside walls of the container from a line supplying the pressurized steam. Optionally, the nozzle may include a third chamber in fluid-flow connection with the pressurized steam line having a plurality of openings therein for directing pressurized steam at the outside edge of the container.
356534
de Echeandia Rafael A.
Hutcheson James L.
Reynolds Metals Company
Sherman
LandOfFree
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