Production of a sound-producing PU-ball

Details Production of a sound-producing PU-ball Production of a sound-producing PU-ball

1992-01-28

1993-04-20

Millin, V.

Amusement devices: games

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

Target

273 58G, 273 65ED, 273DIG8, A63B 4500

Patent

active

052035603

ABSTRACT:
The production of a sound-producing polyurethane foamed ball is disclosed in which the sound producing hardware having a sound generating circuit connected to a battery set by a spring switch, is placed in a mold for producing a polyurethane foam ball in which the polyurethane covers the sound generator through a foaming process. The sound generating hardware is supported in the mold by a metal column extending into the mold cavity. The polyurethane ball thus made has an elongated sound hole for transmitting sounds from said sound generator to the outside.

REFERENCES:
patent: 3350252 (1967-10-01), Twickler
patent: 5006297 (1991-04-01), Brown et al.
patent: 5054778 (1991-10-01), Maleyko
patent: 5066011 (1991-11-01), Dykstra et al.

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