Musical pacifier

Details Musical pacifier Musical pacifier

1995-06-01

1998-06-30

Dawson, Glenn K.

Surgery

Instruments

Oral pacifier

606234, A61J 1700

Patent

active

057726841

ABSTRACT:
A watertight, immersion proof musical pacifier includes a mouthpiece including a faceguard having a central opening defining an air passage to an integral sealed housing. A nipple has an interior space. A plug sealingly mounts the nipple to the mouthpiece with the interior space in communication with the housing through the air passage. A switch-actuated sound generating circuit disposed in the housing controllably reproduces audio signals. A pressure sensitive switch normally closes the air passage. The switch electrically actuates the sound generating circuit in response to pressure generated in the nipple. An air leakage path between the nipple interior space and the housing to maintain static pressure equilibrium between the nipple interior space and the housing.

REFERENCES:
patent: 4554919 (1985-11-01), Hubert
patent: 4586621 (1986-05-01), Dahan
patent: 4726376 (1988-02-01), Dahan
patent: 4768510 (1988-09-01), Leung
patent: 4856519 (1989-08-01), Teves
patent: 5109864 (1992-05-01), Lu
patent: 5292335 (1994-03-01), Shin

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