1979-02-09
1981-01-27
Witkowski, S. J.
Music
Instruments
Wind
84330, 46179, 46180, G10D 700
Patent
active
042468248
ABSTRACT:
A musical toy includes a plurality of tone producing, whistle-like structures arranged in pairs, each tone producing structure connected by a passageway to an hermetically sealed deformable hollow cavity or bulb. Each bulb includes a top generally flat surface having fixed surface area and a resilient, porous biasing agent which inflates the cavities to a predetermined size and configuration. When a cavity is depressed to a deflated position, compressed air is forced through connecting tubes into a sound generating structure thereby producing an audible, musical sound. Eight of the sound generating structures are provided in one apparatus to produce a unit having a full octave of notes. The sealed cavities are provided by selectively laminating a predetermined pattern of seal lines between two sheets of thermoplastic material such as soft, pliable vinyl sheets.
REFERENCES:
patent: 500433 (1893-06-01), Schubert
patent: 1273122 (1918-07-01), Adams
patent: 2487546 (1949-10-01), Harrowe
patent: 2546189 (1951-03-01), Keep et al.
patent: 3091454 (1963-05-01), Sam
patent: 4083742 (1978-04-01), Sugimoto
patent: 4114501 (1978-09-01), Tanaka
Hanson Steven P.
Meyer Burton C.
Marvin Glass & Associates
Wade Shelley
Witkowski S. J.
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