Undertaking
Patent
1985-09-13
1987-02-10
Yu, Mickey
Undertaking
267122, 188298, 744115, 40474, 40415, 446236, 446197, A63H 1320
Patent
active
046418318
ABSTRACT:
Apparatus for controlling rotary motion wherein a bellows is fixed at one end to a support having a restricted vent opening and carries a crank at its opposite end linked to a stallable type motor, the motor moving the crank in a circular path controlled by the bellows between alternate fast and slow motion according to the change in length of the bellows.
REFERENCES:
patent: 535896 (1895-03-01), Fritsche
patent: 1998270 (1935-04-01), Cheetham
patent: 2818678 (1958-01-01), Lemelson
Milton Bradley Company
Yu Mickey
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