Method of making a plastic encased tool component having a light

Details Method of making a plastic encased tool component having a light Method of making a plastic encased tool component having a light

1992-08-06

1993-11-16

Woo, Jay H.

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, 264317, B29C 3376

Patent

active

052621138

ABSTRACT:
An improved method is provided for the manufacture of tool components and the like, of a type having a hollow core disposed within an outer encasement of molded plastic material. A hollow core for the tool component is filled with a flowable filler material such as small steel pellets prior to placement of the core into a mold cavity for injection mold formation of the outer encasement. During the molding step, the filler material provides a substantially rigid structural backstop which enables a core of lightweight construction to withstand typical injection molding parameters. The thus-formed tool component is removed from the mold, and some or all of the filler material is drained from the core through an open port. In one embodiment the tool component includes a lightweight hollow tool handle; in another embodiment, the tool component includes the head of a deadblow hammer with a portion of the filler material retained therein.

REFERENCES:
patent: 2517902 (1950-08-01), Luebkeman
patent: 3762453 (1973-10-01), Marrow et al.
patent: 4424183 (1984-01-01), Nelson
patent: 4570988 (1986-02-01), Carmien
patent: 4605254 (1986-08-01), Carmien
patent: 4743481 (1988-05-01), Quinlan et al.

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