Timer with two speed delay drive system
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United States of America Patent
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-
Jun 24, 2003
Grant Date -
N/A
app pub date -
Oct 23, 2001
filing date -
Oct 23, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cam-operated timer 10 for a household appliance includes an interval type delay drive system to provide variable delay speeds to the rotation of a program cam. The timer 10 includes a rotatable cam-carrying member 16 having a control profile 60 of teeth and plateaus. A rotatable delay wheel 18 also includes a series of delay teeth 73 with at least one tooth 76 being of substantially greater depth than the remaining standard delay teeth 74. A delay pawl 22 is operatively connected to the drive mechanism of the timer 10 and includes at least first and second prongs 80, 82 spaced approximately the distance between the cam-carrying member 16 and the delay wheel 18, with the first prong 80 being substantially shorter than the second prong 82.
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