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US 7,898,372 B2Granted
Method and apparatus for control contacts of an automatic transfer switch
AssigneeASCO Power Technologies, L.P.
InventorRocco M. Melchionne, Jr.
Life of this patent
Estimating the term…
Abstract
An automatic transfer switch includes a solenoid control contacts assembly, an auxiliary contacts assembly, a dual purpose cam attached to a cylindrical shaped weight, and a solenoid actuator. When energized, the solenoid actuator rotates the cylindrical weight and the dual purpose cam actuates both the solenoid control contacts assembly and the auxiliary contacts assembly.
Claims10
An automatic transfer switch comprising:
- a solenoid actuator;
- a solenoid control contacts assembly;
- a weight;
- and
- a multi-purpose cam configured to actuate the solenoid control contacts assembly and an auxiliary contacts assembly, wherein the multi-purpose cam is mechanically coupled to the weight, and wherein the weight is coupled to the solenoid actuator by a solenoid link;
- wherein when the switch is energized, the solenoid actuator moves axially and the solenoid link converts this axial motion into a rotational motion to rotate the weight and the multi-purpose cam so that the multi-purpose cam actuates the solenoid control contacts assembly or the auxiliary contacts assembly.
3 more elements
An automatic transfer switch comprising:
- a solenoid actuator;
- a solenoid control contacts assembly;
- an auxiliary contacts assembly;
- a weight;
- and
- a multi-purpose cam mechanically coupled to the weight and coupled to the solenoid actuator by a solenoid link;
- wherein when the switch is energized, the solenoid actuator moves axially and the solenoid link converts this axial motion into a rotational motion to rotate the weight and the multi-purpose cam so that the cam actuates the solenoid contacts assembly or the auxiliary contacts assembly,
- wherein the multi-purpose cam comprises a first actuation surface and a second actuation surface, the first actuation surface associated with actuating the solenoid contacts assembly and the second actuation surface associated with actuating the auxiliary contacts assembly.
5 more elements
Dependencies are inferred from the claim text.