Method and apparatus for forming a plastic enclosure for...

Details Method and apparatus for forming a plastic enclosure for... Method and apparatus for forming a plastic enclosure for...

F - Mech Eng,Light,Heat,Weapons

04

B

103/30, 128/82

F04B 43/12 (2006.01) A61J 1/00 (2006.01) B29C 65/00 (2006.01) B29C 65/02 (2006.01) B31B 41/00 (2006.01)

Patent

CA 1170904

D-2107 ABSTRACT OF THE DISCLOSURE An apparatus and a method for forming a compartmentalized flexible plastic enclosure with selectively communicable compart- ments utilizing a pair of plates and at least one thin plastic sheet sandwiched between the plates. One plate has a surface which is conventionally plane facing the sheet and the other plate has a surface which includes a network of ridges facing the sheet and forming a sealing edge by pressure contact. The ridges defining at least the interior compartment of the bag to be formed with gaps in the ridges for defining communication channels between the compartments and valves disposed to close the gap in one position and to open the gap in the other position.

387410

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