Plastic bowling pin and method of making the same

Details Plastic bowling pin and method of making the same Plastic bowling pin and method of making the same

1982-03-15

1984-07-03

Marlo, George J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

264 451, 264DIG83, A63B 6300, B29D 2700

Patent

active

044575114

ABSTRACT:
An injection molded bowling pin with a core of thermoplastic plus a blowing agent and a solid skin of thermoplastic per se injected into the mold at one and the same time. The bowling pin is molded by a process wherein a foam material for forming the core is surrounded by and in contact with a nonfoam material and both materials are simultaneously injected into a mold cavity having the shape of a bowling pin. The skin and core may be of the same or of different thermoplastic. The bowling pin is a unitary structure of superior strength and finish with the foamed core and solid skin fused together.

REFERENCES:
patent: 3971837 (1976-07-01), Hasegawa
patent: 4134687 (1979-01-01), Eckardt

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