Abstract: An electric motor assembly capable of withstanding heavy side loading includes a motor housing having a shell with first and second end shields including bearing supports having bearings therein. The first end shield further includes a flange for connecting a compressor to the motor. A rotor is rotatably mounted in the housing and supported by the bearings. A stiffening collar, positioned between a rotor core and the first end shield, surrounds a portion of a rotor shaft and provides support for the shaft against deflection due to heavy side loading. A centrifugal mechanism and a spacer are positioned on the rotor assembly outboard of the motor housing. The motor assembly also includes a cover attached to the second end shield. The cover holds a start capacitor, a run capacitor and a centrifugal switch and further includes snaps for mounting the centrifugal switch to the cover. An overload and an overload bracket extend, at least partially, through an opening in the second end shield.

Abstract: An air compressor system having an unloader valve which is directly mechanically activated by an air compressor motor's centrifugal mechanism to allow the motor to reach a predetermined speed before a load is applied is disclosed. The unloader valve is mounted directly on an end flange of the motor and communicates with an outlet conduit of the air compressor to allow the compressed air from the air compressor to vent to atmosphere until the motor reaches the predetermined speed.

Abstract: A mounting and handling shroud for a pedestal-type sump pump includes a cup-shaped member mounted to the sump pump motor. The cup shaped member has an end shroud plate contiguous with an outer shroud plate extending along at least a portion of the motor housing, generally perpendicular to the end shroud plate. The mounting member includes at least one mounting element formed therein that defines an opening for securing the motor to the sump. The mounting element includes a handle portion extending generally transversely relative to the outer shroud plate and a depending leg portion that defines a handle. The shroud can include a pump start switch, pump power and running indicators and a power cord strain relief device.

Abstract: A weldment for attaching mounting brackets and bases to electric motors includes an internal doubler element that is positioned within a motor shell and attached to the inner wall surface of the motor shell. A mounting bracket or base positioned on the outer wall surface of the motor shell is attached to the internal doubler element by a plug weld. The internal doubler element is positioned to increase the strength of the shell at critical stress areas. In addition to utilizing the internal doubler element, the mounting bracket is positioned to be aligned with and adjacent the lap weld seam of the motor shell.

Abstract: A two compartment motor has a frame, a pair of end shields disposed adjacent opposing ends of the frame to define a first compartment, a stator winding supported by the frame within the first compartment, an armature rotatably supported by the end shields and disposed within the first compartment adjacent the stator winding, a cover mounted to the motor adjacent one of the end shields to define a second compartment between the cover and the end shield, and a control plate mounted within the second compartment. The control plate serves as a mounting surface for securing a plurality of electrical components used in the control and operation of the motor in position within the second compartment. The control plate is a molded plastic component having integrally formed mounting mechanisms for at least one of the electrical components. The electrical components may include a starting capacitor, voltage and/or speed control switches, an overload device and electrical terminals.

Abstract: A terminal board assembly for a dynamoelectric machine, adapted for supporting an overload device, comprises a body and an overload device support integral with the body and extending therefrom for cradling the overload device when the overload device is supported on the terminal board assembly. The body and the overload device support each include apparatus releasably secured in engagement with the overload device for retaining the overload device against displacement from the overload device support.

Abstract: A terminal board assembly for a dynamoelectric machine includes a body, a switch device associated with the body and having a movable actuating lever. An enclosures overlays the switch device and includes a pair of at least partially overlapping cover segments associated with the body for extending in part in enclosing relation about the switch device. Aligned passages extend through the pair of cover segments for the extension therethrough of a part of the actuating lever exteriorly of the pair of cover segments. A movable seat strip spans the passages and is associated in sealing relation with the pair of cover segments and the actuating lever part for accommodating the movement of the actuating lever while maintaining the sealing relationship.

Abstract: A two compartment motor has a frame, a pair of end shields disposed adjacent opposing ends of the frame to define a first compartment, a stator winding supported by the frame within the first compartment, an armature rotatably supported by the end shields and disposed within the first compartment adjacent the stator winding, a cover mounted to the motor adjacent one of the end shields to define a second compartment between the cover and the end shield, and a control plate mounted within the second compartment. The control plate serves as a mounting surface for securing a plurality of electrical components used in the control and operation of the motor in position within the second compartment. The control plate is a molded plastic component having integrally formed mounting mechanisms for at least one of the electrical components. The electrical components may include a starting capacitor, voltage and/or speed control switches, an overload device and electrical terminals.

Abstract: A dynamoelectric machine has a housing, a terminal board and a stationary assembly including a winding with a set of leads. The terminal board has a pair of opposite faces with a peripheral portion therebetween and a set of separate recesses in the peripheral portion. The recesses define with the housing a set of separate passages for receiving at least the winding leads.

Abstract: A terminal board for a dynamoelectric machine has a body with a pair of opposite faces. At least one terminal secured to the body includes an electrical connector section extending beyond one of the opposite faces and a deformed end section generally opposite the electrical connector section arranged in spaced apart relation with the other of the opposite face. A switch element is conductively secured to the deformed end section of the at least one terminal and extends in overlaying spaced relation with the other opposite face for switching between a set of switching modes.

Abstract: A method of assembling a dynamoelectric machine having an outboard switch compartment established at least in part by an end frame, an axially movable switch operating mechanism, and a switch assembly. In this method, the switch assembly is positioned in overlaying relation with respect to the switch operating mechanism and the end frame, and a preferred mounting height is determined for the switch assembly with respect to the switch operating mechanism and the end frame. The switch assembly is then fastened in place at the preferred mounting height.

Abstract: In a method of assembling a dynamoelectric machine, tabs on a rain shroud are received in releasable engagement in notches in a rabbet surface on an end frame of the dynamoelectric machine so as to locate the rain shroud in an assembly position. The cover is arranged in overlaying relation with the tabs to retain the rain shroud against displacement from its assembly position, and the cover is releasably secured to the end frame thereby to define a compartment between the cover and the end frame for accommodating dynamoelectric machine components.

Abstract: A method of assembling a switch device with a means for supporting it. The supporting means includes at least one face having a set of bosses thereon, and each boss has a free end and a ledge intermediate the free end and the at least one face. The switch device has an actuating lever with a pair of generally opposite trunnions thereon, and a set of terminals of the switch device each have a deformed end section. In practicing this method, the opposite trunnions of the actuating lever are seated on the ledges of at least some of the bosses. The terminals are associated in preselected positions therefor on a supporting means, and the deformed end sections of the terminals are disposed in overlaying spaced apart relation with at least the ledges on the at least some bosses thereby to capture the opposite trunnions between the at least some bosses and the terminals, respectively.

Abstract: A method of manufacturing a switch assembly for an electric motor having a switch operating mechanism for actuating the assembly. The assembly including a switch actuator having at least one slot therein, a switch arm support having an elongate channel and a switch actuator accommodating distal portion, and at least two switch arms having contacts thereon. To practice this method, the actuator is disposed along the distal portion, and one of the switch arms secured to the support is positioned along the elongate channel in overlaying relation with the actuator so as to be laterally confined by the actuator slot. Another of the switch arms secured to the support is positioned in overlaying essentially parallel relation with the one switch arm so as to be laterally confined by the actuator slot.

Abstract: In a method of assembling a dynamoelectric machine, a set of pads on a terminal board are inserted into assembly positions in engagement with a set of slots in one end of a housing for the dynamoelectric machine, and the pads are in part overlaid with the housing about the slots therein. The terminal board is positioned in a preselected position therefor within the housing, and a peripheral portion of the terminal board is disposed at least generally adjacent the housing therewithin when the pads are in their assembly positions. An end frame is mounted in an assembly on the housing in engagement with the one end thereof so as to retain the pads against displacement from the assembly positions thereof past the one end of the housing.A dynamoelectric machine, methods of assembling a switch device with a means for supporting it, and a terminal board assembly are also disclosed.

Abstract: Motor has outboard switch compartment with components therein such as a capacitor, thermal protector, terminal board, motor circuit controlling switch assembly, a manual switch, a thermal plastic molded cover for the compartment fastened with axially directed screws, and an optional rain shroud positively positioned on the end shield. The switch assembly is designed to have accurate contact alignment which will be maintained over the life of the switch; a wiping action of the contacts; a high amount of contact travel in terms of percentage of switch actuator travel; protected contact blade arms; and a multiple height mounting feature which assures a more optimum location of the switch at final assembly with respect to the location of the switch operating mechnism. Switch arms are essentially parallel and have contacts positioned directly in line with the actuating line of a switch actuator and an operating mechanism.

Abstract: Motor has outboard switch compartment with components therein such as a capacitor, thermal protector, terminal board, motor circuit controlling switch assembly, a manual switch, a thermal plastic molded cover for the compartment fastened with axially directed screws, and an optional rain shroud positively positioned on the end shield. The switch assembly is designed to have accurate contact alignment which will be maintained over the life of the switch; a wiping action of the contacts; a high amount of contact travel in terms of percentage of switch actuator travel; protected contact blade arms; and a multiple height mounting feature which assures a more optimum location of the switch at final assembly with respect to the location of the switch operating mechanism. Switch arms are essentially parallel and have contacts positioned directly in line with the actuating line of a switch actuator and an operating mechanism.

Abstract: A two-speed single phase motor of the capacitor-start type is disclosed wherein the motor is switched from the start condition to the run condition by means of a single contact centrifugally actuated switch. The motor comprises high speed and low speed main windings and a start winding employed in both the high speed and low speed configurations. A single pole single throw centrifugally actuated switch connected to the rotor has a single contact pair which opens when the motor exceeds a predetermined speed, and the same contact pair is used in both the high speed and low speed configurations. A relay comprising a coil in series with the centrifugal switch contacts has a pair of normally open contacts in series with the start capacitor so that when the centrifugal switch contacts open and interrupt the flow of current through the relay coil, the relay contacts will open thereby disconnecting the start capacitor from the circuit.