Method of molding a composite plastic article

Details Method of molding a composite plastic article Method of molding a composite plastic article

1995-10-12

1997-11-18

Ortiz, Angela Y.

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

2642711, 264274, B29C 4514, B29C 7078

Patent

active

056884613

ABSTRACT:
A method of molding a composite plastic article having a cylindrical transverse cross section. The method includes the steps of forming an inner core of a cylindrical transverse cross section having a longitudinally extending hub, an outer wall surrounding the hub and ribs extending between the hub and the outer wall. A plurality of openings are formed extending through the outer wall with the openings accessible between the hub and the outer wall. A soft, resilient plastic is injection molded through only one of the plurality of openings to form an outer covering on the outer wall and to fill the other openings which extend through the outer wall.

REFERENCES:
patent: 2071147 (1937-02-01), Watson
patent: 2425611 (1947-08-01), Frost et al.
patent: 3468020 (1969-09-01), Carlson et al.
patent: 3543329 (1970-12-01), Gulette et al.
patent: 4094210 (1978-06-01), Wirtz et al.
patent: 4165659 (1979-08-01), Fawley

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