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
Patent
1979-09-28
1981-01-27
Derrington, James 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
264264, B29F 110
Patent
active
042475120
ABSTRACT:
An annular metal outer race with a concave bore is placed in an outer mold. A pair of coaxial annular inner molds are inserted into the outer race. Liquid plastic is flowed into an annular space between the inner molds and the outer race. The liquid plastic is allowed to solidify and shrink whereby a clearance between the plastic ball outside diameter and the outer race is provided.
REFERENCES:
patent: 3218383 (1965-11-01), White
patent: 3941495 (1976-02-01), Duncan
Allen Richard D.
Lobeck John H.
Derrington James H.
The Torrington Company
Troidl Frank S.
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