Manufacturing method for seamless manmade leather ball

Details Manufacturing method for seamless manmade leather ball Manufacturing method for seamless manmade leather ball

2011-01-04

2011-01-04

Lee, Edmund H. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S132000, C264S254000, C264S251000, C264S275000, C264S279100, C264S293000, C264S296000, C264S294000

Reexamination Certificate

active

07862757

ABSTRACT:
A manufacturing method for seamless manmade leather ball, wherein composites such as soft bioplastic resin or manmade leather, etc are injected, extruded or hot compressed to form upper and lower half bowl type thin covers to completely matchingly sleeve and sphere the corresponding ball bladder, next it is pressingly combined in the one step or two steps curing molds to fusionly paste with the reinforcement layer on said ball bladder to become an initial blank with waterproof layer which is further pressingly combined and cooled down to a fixed form in another set of forming molds with its outside surface formed with pre-formed lines and is further treated with a surface cortex layer and put in forming molds once again allowing surface decorative lines to be pressingly combined at second time, thereby allowing the ball to appear a better simulated leather ball outlook.

REFERENCES:
patent: 3256019 (1966-06-01), Barton
patent: 3405018 (1968-10-01), Way
patent: 3512777 (1970-05-01), Henderson
patent: 5320345 (1994-06-01), Lai et al.
patent: 5759123 (1998-06-01), Ou
patent: 6398894 (2002-06-01), Lee
patent: 6500082 (2002-12-01), Ou
patent: 7066853 (2006-06-01), Chang

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