B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
220/4
B65D 33/00 (2006.01) A61F 5/441 (2006.01) B01D 19/00 (2006.01) B65D 47/32 (2006.01)
Patent
CA 1041464
BREATHER ASSEMBLY FOR A SEALED CONTAINER ABSTRACT OF THE DISCLOSURE A breather assembly for a sealed container such as a bedside drainage bag, such bag being made of sheets of polyvinyl chloride plastic which material has the characteristics of receiving an electronic weld. A breather element is positioned between one face of the container wall and a retaining ring. The wall and ring have openings therein positioned in alignment with each other. The breather element retaining ring is comprised of a non-porous flexible material such as polyvinyl chloride having the characteristics of receiving an electronic weld. The breather element is made from a material comprised of a woven nylon substrate with a coating of a copolymer of polyvinyl chloride and acrylonitrile which material is elective to allow free passage of air therethrough while at the same time effectively resisting the flow of liquid therethrough. Such material also has the characteristics of receiving an electronic weld. The parts are sealed to each other by the application of an electronic weld applied to the peripheral portions of the ring and filter element. Such weld will fuse the retaining ring to the wall of the container and to the breather element to thereby seal the parts together and prevent any tendency of liquid in the container to flow around the edge of the breather element.
261283
Johnston Raymond H.
Mather Byron L.
LandOfFree
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