B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 35/08 (2010.01) B29D 35/12 (2010.01)
Patent
CA 2755330
A method and apparatus for making a lined waterproof footwear product, and footwear product formed there from, are provided. A last, having an exterior surface configured to correspond to the size and shape of the interior surface of the footwear product, is covered with a microcellular lining material. An injection mold comprises shells having a pre-determined configuration to cooperate with the exterior surface of the lining covered last to form: (i) a pre-injection cavity between the shells and the lining covered last when in position in the mold for injection molding; and, (ii) an injection cavity, defining the configuration of the footwear product, between the shells and the lining covered last when injection material is being injected into the injection cavity whereby the injection pressure causes the microcellular lining material to reconfigure to the injection cavity. The mold is closed with the lining covered last between the shells and injected under pressure with an injection material until the injection cavity is filled with the injection material. The injection material is hardened and attaches to the microcellular lining material, to form the footwear product over the last. The mold is opened and the footwear product is removed from the last.
Bichai Joseph
Cook Gordon
Cassan Maclean
Genfoot Inc.
LandOfFree
Improved method and apparatus for manufacturing waterproof... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Improved method and apparatus for manufacturing waterproof..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved method and apparatus for manufacturing waterproof... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1729306