B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
156/28
B65B 29/02 (2006.01) A47L 13/17 (2006.01) B65B 9/04 (2006.01) B65B 47/10 (2006.01) D06F 39/02 (2006.01) C11D 17/04 (2006.01)
Patent
CA 1299994
ABSTRACT OF THE DISCLOSURE A method and apparatus for making a porous laminated sheet product having upper and lower web members connected about their periphery and having at least one compartment formed therein, and containing a predetermined quantity of inner product within such compartment. In a preferred embodiment, the apparatus includes a pouch-forming surface having at least one inner product loading area formed therein which further includes a cavity surrounded by peripheral land areas, a passageway adapted to place the product loading area cavity in fluid communication with a vacuum source such that suction can be selectively applied to the cavity, and one or more apertures formed through the peripheral land areas and adapted to be selectively placed in fluid communication with a source of pressurized air whereby outward air flow can emanate from the peripheral land areas. The preferred process for making the porous pouches includes placing a first porous web of pouch material in contact with the pouch forming surface, depositing a quantity of granular product on the upper surface of the first porous web such that the vacuum source tends to hold the granular product against the upper surface of the first web in the product loading area cavity while the pressurized air tends to keep the granular product from being deposited on the upper surface of the first web in the peripheral land areas, and supplying a second web of pouch material and laminating the lower surface thereof to the upper surface of the first porous web along the peripheral land areas. This process thereby forms one or more porous pouches containing a predetermined quantity of granular product sealed about their periphery.
496332
Kirby Eades Gale Baker
The Procter & Gamble Company
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