Title: Sound reproducing unit

Abstract: A voice or sound unit adapted for use on toys and the like has a mechanical linkage system with a joint capable of transmitting sound indicia while isolating the tone arm from any absorption of stylus movement. The tone arm can employ flexure hinges to insure a constant force on the stylus. A planetary gear coupling system provides a unique drive transmission to either a single turntable or a pair of concentric turntables. If a pair of turntables are used, they can be relatively rotated to combine a large number of sound sequences.

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Inventors: Smith, III, Jay (Pacific Palisades, CA, US)
Conroy, Richard F. M. (Woodland Hills, CA, US)

Application Number: 760237
Filing Date: 1977-01-17
Publication_date: 1978-07-18
Assignee: Hasbro Development Corp. (Pawtucket, RI)
Primary Class(es): 369/66 369/272, 369/281
Other Classes:
US Patent Ref:

2353370	Jul, 1944	Sears	74/789.
2467627	Apr, 1949	Olson	74/773.
3082006	Mar, 1963	Ryan	274/1.
3801110	Apr, 1974	Licitis	274/42.
3904210	Sep, 1975	Licitis	274/1.

Other Refs:
Primary Examiner: Haroian, Harry N.
Assistant Examiner:
Attorney: Salter & Michaelson