Electricity: circuit makers and breakers – Retarded – Clock train
Patent
1997-04-10
1999-03-30
Friedhofer, Michael A.
Electricity: circuit makers and breakers
Retarded
Clock train
200 38B, H01H 4300
Patent
active
058892443
ABSTRACT:
A sequence switch unit for use in a dishwasher eliminates a need for a separate timer and relay for each dishwasher component during the washing portion of the cycle. In one embodiment, the sequence switch unit includes a switch disk having a plurality of contact blade tracks, a lower control track, an upper control track, and a ramp connecting the lower control track and the upper control track. The sequence switch unit includes a blade unit including a plurality of contact blade assemblies. Each of the contact blade assemblies has an elongate fixed blade having a fixed contact and an elongate movable blade having a movable contact. The contact blade assemblies are normally in a closed condition. The movable blades are movable so that the contact blade assemblies can be positioned in an open condition. A switch lift lever is secured to and rotatable with the switch disk, and the switch lever extends between the fixed blade and the movable blade of each contact blade assembly. The switch lift lever includes a lever blade and a finger extending from the lever blade. The lever blade extends between the fixed blade and the movable blade of each contact blade assembly. The lever blade finger is oriented to travel within the lower and upper tracks. A drive gear is coupled to the switch disk, and a motor is coupled to the drive gear so that when the motor causes the drive gear to rotate, the switch disk rotates with the drive gear.
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Friedhofer Michael A.
General Electric Company
Houser H. Neil
LandOfFree
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