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US 4,363,181 AGranted
Electronic musical mobile
OwnerGregory E. Hyman, Lawrence J. Greenberginventors
Life of this patent
Estimating the term…
Abstract
A mobile is rotated by an energy storage device to which energy is periodically transferred by a motor which is in turn controlled by an electronic circuit. The electronic circuit simultaneously controls a loudspeaker to produce a wide variety of music with variations in tune, tonal quality, key, tempo, and loudness.
Claims17
A musical mobile comprising:
- a rotatable mobile, electric drive means, power transmitting means including energy storage means operatively connecting said mobile to said electric drive means for rotating said mobile in response to release of energy previously stored in said energy storage means and a control circuit means operatively connected to said electric drive means for peroidically activating said electric drive means during the operating cycle of said control means and for simultaneously electronically generating music during said operating cycle, said control circuit means having manual control means for selecting the duration of said operating cycle.
An apparatus adapted to rotate a mobile, comprising:
- electric motor drive means adapted to be operatively connected to a mobile for rotating said mobile, energy storage means operatively connected to said electric motor drive means and to said mobile for rotating the mobile in response to release of energy previously stored in the energy storage means by the electric motor means, and control circuit means for intermittently actuating said electric motor drive means for a desired period of time after the energy storage means has been at least partially depleted of stored energy.
Dependencies are inferred from the claim text.