Electrical connectors – Coupling part including flexing insulation – Sealing
Reexamination Certificate
2000-03-30
2002-09-10
Bradley, P. Austin (Department: 2833)
Electrical connectors
Coupling part including flexing insulation
Sealing
Reexamination Certificate
active
06447336
ABSTRACT:
BACKGROUND OF THE INVENTION
I. Technical Field
The present invention relates generally to an electrical connector for a motorized conveyor pulley and, more particularly, to an electrical connector for a motorized conveyor pulley which effectively fluidly seals a passage in which the electrical connector is positioned.
II. Discussion
Conventional mechanical technology many times requires electrical power to be supplied into an environment containing lubricants or other fluids. Specific devices which require such a power supply include motorized conveyor pulleys. For instance, electric motors for motorized conveyor pulley systems generally comprise operational parts and lubricant which together with the motor are completely enclosed within the pulley housing. However, for operation, the motor must be provided with electrical energy. In addition, the specific application of motorized conveyor pulleys require the pulley housing to selectively be supplied with power for operating various electrical devices such as braking systems disposed therein. To accomplish these functions, a shaft and an electrical cable must be provided which penetrates the pulley housing. The shaft is typically fitted with a passage through which an electrical cable having a plurality of conductors is passed to supply the motor and associated devices with electrical power.
While the motorized conveyor pulley housing effectively allows ingress and egress of the proper mechanical and electrical components, lubricant tends to leak through the passage in the shaft around the cable through which electrical power is supplied. The present invention was developed to overcome this problem.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide an electrical connector located in a passage of a motorized conveyor pulley shaft that provides a conduit for electrical wiring and seals the passage to thereby prevent leakage of lubricant therethrough.
To accomplish these and other objects, the present invention provides an electrical connector for a motorized conveyor pulley having a plate with a first side, second side, and an outer surface. The plate is constructed of an insulating glass material. At least one conductor pin is supplied which provides electrical communication from the first side to the second side. The plate is formed around the conductor pin to fluidly seal the first side from the second side. The electrical connector has an outer shell structure having an internal area and an outer area. A portion of the internal area surrounds and is bonded to the outer surface of the plate.
Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are intended for purposes of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
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Boucher Ryan
Fannin Daniel G.
Bradley P. Austin
Emerson Electric Co.
Harness & Dickey & Pierce P.L.C.
León Edwin A.
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