Plastic pin

Details Plastic pin Plastic pin

1995-06-02

1997-08-12

Pierce, William M.

Games using tangible projectile

Bowling

Pin

473119, A63D 900

Patent

active

056559704

ABSTRACT:
A plastic pin having a porous and/or cellular core that is surrounded by a hard shell. To be able to influence the level of the center of gravity of the pin, the shell is provided with an aperture in which is secured an insert in the form of a hollow body that extends into the interior of the shell and is disposed coaxially thereto. The hollow body can extend from the head of the pin beyond the neck and into the upper portion of the barrel portion of the pin.

REFERENCES:
patent: 1583824 (1926-05-01), Bishop
patent: 3044777 (1962-07-01), Friedman
patent: 3169766 (1965-02-01), Ernst
patent: 3572710 (1971-03-01), Negrini
patent: 3971837 (1976-07-01), Hasegawa et al.

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