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
1977-03-30
1978-08-01
Hoag, Willard E.
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
264248, 264255, 264294, 264320, 264347, B29C 500, B29D 900, B29G 100
Patent
active
041043529
ABSTRACT:
Method of making a hollow bowling pin comprising a base, body and cap wherein at least said body is composed of a thermoset composition, and said base and cap are composed of a thermoset or thermoplastic composition. The body of said pin may be composed of two or more sections of different hardness.
REFERENCES:
patent: 4012386 (1977-03-01), Davis
Davis Frank E.
Morgan Wesley W.
Columbia Industries, Inc.
Hoag Willard E.
Stahl John C.
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