Abstract: The temperature probe is biased for causing current flowing therethrough to be proportional to the probe temperature. A variable set point temperature is represented by a variable reference current which is summed with the temperature probe current. An output signal is produced therefrom to indicate the relationship between the set point temperature and the probe temperature.
Type:
Grant
Filed:
June 9, 1980
Date of Patent:
November 29, 1983
Assignee:
Emhart Industries, Inc.
Inventors:
Walter R. Spofford, Jr., Daniel I. Pomerantz
Abstract: An axially spring biased plunger has a cam which upon simultaneous engagement with a pair of switches opens one of the switches while closing the other.
Abstract: A clutch permits rotation of a cam means from one drive means independent of another. The clutch is operable through at least two diametrically opposed fingers engaging slots which are provided on a gear, the gear being part of a gear train for the motor drive means.
Abstract: Rotation of a cam means of a timing mechanism is provided by three sets of axially aligned ratchet teeth having different major and minor diameters and a drive pawl selectively engaging the three sets of teeth.The arrangement provides a means to delay the actuation of switches which control the functions of an appliance.
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