Games using tangible projectile – Bowling – Pin
Patent
1996-09-26
1998-11-03
Pierce, William M.
Games using tangible projectile
Bowling
Pin
473119, A63F 700
Patent
active
058300740
ABSTRACT:
A magnetically responsive bowling pin having a first upwardly open cavity in its head portion and a second elongated cavity smaller and cross-section and extending downwardly in the head portion of a bowling pin. The first cavity receives a plastic cap having a top portion and a skirt with a permanent magnet and a plastic plug disposed in press fit engagement within the skirt. The skirt in turn is in press fit engagement with the wall of the first cavity to retain the assembled magnet and plastic parts in the desired position in the cavity. The second elongated cavity serves to remove material from the body of the bowling pin and thus compensates for the added weight of the permanent magnet and the slight additional weight of the plastic cap and plastic plug. As a result, the desired weight, weight distribution and balance of the bowling pin is not disturbed. In a second embodiment, the plastic cap has a through opening accessible upwardly and a small steel cap is mounted within the plastic cap and is exposed upwardly through the opening. The cap is also in engagement with the permanent magnet and results in enhancement of the magnetic forces.
REFERENCES:
patent: 596543 (1898-01-01), Randall
patent: 1190649 (1916-07-01), Hedenskoog
patent: 2346428 (1944-04-01), Hanley
Mendes Inc.
Pierce William M.
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