Abstract: An external terminal end of an electrical element of a switch has a thick central portion providing enhanced elimination of heat generated by switching arcs to a connected female spade receptacle.

Abstract: Twist-in mounting structure comprises a barrel, and panel capture tabs extending oppositely away therefrom, each terminating in a free end spaced away from the barrel. Each tab has an interference surface sloping downwardly and inwardly toward the barrel, and an interference region bounded by the interference surface. An acute angle is included between the interference surfaces and a cooperative raised capture plateau lying below them. A spring locking arm, sprung out of the plane of the housing mounting surface, provides a distal locking element. The housing mounting surface provides structure for laterally capturing the locking arm.

Abstract: Twist-in mounting structure centered on a component surface mounts a component to a single panel aperture. Each of a pair of capture tabs has a free end away from the structure's center; an interference surface slopes from the tab free end downwardly toward a raised capture plateau and inwardly toward the center. Each of a pair of spring locking arms lies between two capture tabs, providing a free bearing end adjacent the center, and is pivotable at an end spaced away from the center responsive to force on the bearing end, between unstressed, depressed, and locking positions. In assembly, the tabs pass through the aperture, while the arms are depressed by the panel; with panel against plateaus, the component is twisted to cause aperture edges and tabs to interfere; thereafter the locking arm free ends spring through the aperture into locking position.

Abstract: Rotary switch providing selectable forward and reverse motor speeds responsive to a single control. A rotatable shaft moves two power source contacts interdependently between a motor terminal and a bus, for two polarity conditions, or holds the contacts in a power off condition. Three concentric coplanar tracks, radially spaced and centered about the shaft axis, each comprises conductive and non-conductive arcuate segments. At least one track has a segment powered by connection to the bus. Each conductive segment of a non-powered track is connected to a switch output. The shaft carries two arcuately spaced wipers, each providing electrical contacts for connecting conductive segments of a distinct pair of tracks including a powered track. Segments, wipers, and contacts are mutually spaced to successively connect distinct sets of segments as the shaft is rotated, to provide at the switch outputs distinct switch conditions including an off condition.

Abstract: An auxiliary winding cut-out switch for a sump pump motor having main windings and auxiliary windings. Controlled deflection means for positioning a contact carried on a terminal movable arm with respect to a fixed contact comprises a plunger, actuator, removable coil compression return spring and removable coil compression take-up spring, all concentric and colinear. The plunger slides in housing guide means and has a follower portion for following contact with a control surface carried on the motor rotor and axially movable responsive to rotor speed. The actuator slides in the housing guide means and has an offset coupler engaging the terminal movable arm. The take-up spring is seated between plunger and actuator; the return spring is seated between housing cover and actuator. The springs are electrically unconnected to the terminals.