Educational toy keyboard

Details Educational toy keyboard Educational toy keyboard

1995-03-14

1996-08-13

Hafer, Robert A.

Amusement devices: toys

Having keyboard

446408, 446179, A63H 3330, A63H 3340

Patent

active

055450717

ABSTRACT:
An educational toy keyboard is constructed of a main body, keys arranged on the main body, and transparent cylinders corresponding to the individual keys. The transparent cylinders are mounted on the main body and tone-indicating characterful figures are fitted for flotation within the respective cylinders. The tone-indicating characterful figures are floated by buoyancy of compressed air. The keyboard further includes a blower for feeding the compressed air, and a sound-generating circuit capable of sounding a scale or melody in response to depression of the individual keys. When the individual keys are selectively depressed, the sound-generating circuit sounds the scale or melody and the tone-indicating characterful figures are caused to float in the corresponding transparent cylinders.

REFERENCES:
patent: 1429382 (1922-09-01), Vaughan
patent: 2383305 (1945-08-01), Greene
patent: 2571405 (1951-10-01), Anthony
patent: 2788697 (1957-04-01), Anthony
patent: 3159935 (1964-12-01), Rubens
patent: 4250657 (1981-02-01), Barlow et al.
patent: 5145447 (1992-09-01), Goldfarb

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