Burner valve control device, an electrical switch unit therefor and methods of making the same
AssigneeRobertshaw Controls Company
InventorRoy C. Demi
Life of this patent
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Abstract
A combination of a burner valve control device and an electrical switch unit carried by the device and being operated by a movable actuator controlled by the selector of the device, the selector having a control shaft rotatable about an axis thereof. The switch unit has a snap-fit arrangement snap-fitted to the device when the entire switch unit is moved in a direction substantially transverse to the axis of the control shaft to detachably secure the switch unit to the device.
Claims9
In a combination of a burner valve control device and an electrical switch unit carried by said device and having the switch means thereof operated by movable actuator means controlled by the selector means of said device, said movable actuator means comprising a lever pivotally mounted to said switch unit to be carried thereby and engageable with said selector means of said device and said switch means of said switch unit, the improvement wherein said lever is substantially anchor-shaped and has an arcuate actuator arm means provided with opposed end means for respectively being engageable with said selector means of said device and said switch means of said switch unit, said lever having a shank portion extending substantially radially from said arm means substantially medially of said end means thereof and having an outer free end pivotally mounted to said switch unit.
Dependencies are inferred from the claim text.