Sleeve bearing ground lead for motors
AssigneeAmetek Technical Motor Division
InventorTimothy J. Stewart
Life of this patent
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Abstract
A ground lead connection is provided to electrically ground a motor armature shaft. In one embodiment the device has a motor housing in which is mounted a bearing. An armature shaft is journaled in the bearing and a ground lead is attached to the bearing. The bearing is provided with a counter bore socket which receives a terminal from the ground lead. The terminal includes a ferrule and a plug which has flared fingers. When connected, the plug engages the bore of the socket and the fingers engage the counter bore to permanently prevent removal of the terminal from the socket. The shaft is thereby grounded via the bearing without the need for numerous parts.
Claims5
In a ground lead connection for a motor, the improvement, comprising:
- a motor housing;
- a sleeve bearing mounted in said housing, said sleeve bearing having a socket comprising a bore and a counter bore concentric with said bore, said counter bore forming a seat relative to said bore;
- an armature shaft journaled in said bearing;
- and
- grounding means for said armature shaft received within said socket and connected to said bearing.
In a ground lead connection for a motor, the improvement, comprises:
- a motor housing;
- a sleeve bearing mounted in said motor housing, said sleeve bearing having a socket comprising a bore and a counter bore concentric with said bore, said counter bore forming a seat relative to said bore;
- an armature shaft journaled in said sleeve bearing;
- and
- grounding means comprising an insulated electric wire and a terminal,
- said terminal engaging said socket to ground said shaft, said terminal comprising a ferrule and a plug, said plug having a plurality of flared fingers, and said ferrule having at least one flared stop, said plug engaging said bore and said fingers of said seat whereby removal of said terminal from said socket is permanently prevented.
Dependencies are inferred from the claim text.