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Insulated grounding hub locknut unit

a technology of insulated grounding and locknuts, which is applied in the direction of electrical equipment, connections, coupling protective earth/shielding arrangements, etc., can solve problems such as damage to insulation or electrical conductors entering the panel box

Active Publication Date: 2017-07-13
BRIDGEPORT FITTINGS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The insulated grounding hub locknut unit effectively secures conduit connectors to electrical panel boxes while preventing conductor damage through the snap-on insulator's protective design, ensuring easy installation and fabrication, and providing a secure grounding mechanism.

Problems solved by technology

The terminating end can be sharp, rough and / or abrasive and may cause damage to the insulation or electrical conductors entering the panel box via the attached electrical conduit.

Method used

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  • Insulated grounding hub locknut unit
  • Insulated grounding hub locknut unit
  • Insulated grounding hub locknut unit

Examples

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Embodiment Construction

[0023]As seen in FIGS. 1, 7 and 9, the present invention is directed to an insulated grounding hub locknut unit 10 configured to secure a conduit connector 70 to an electrical panel box 90. As shown in FIGS. 1 and 7, the insulated grounding hub locknut unit 10 comprises a locknut 30 and a snap-on insulator 50. The locknut 30 is dimensioned to secure a conduit connector 70 to an electrical panel box 90 (see FIG. 9). As shown in FIGS. 1-4, the snap-on insulator 50 has an annular body having a first side 51 and an opposing second side 52. The annular body has an end face 54 at the first side 51. The end face 54 has an inner periphery 56 and an outer periphery 58. The snap-on insulator 50 has a substantially cylindrical outer surface 60 with a first surface end 61 and a second surface end 62 at second side 52. The first surface end 61 joins to the outer periphery 58 of the end face 54 and the second surface end 62 is dimensioned to snap onto a receiving end 32 of the locknut 30. As show...

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PUM

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Abstract

An insulated grounding hub locknut for securing a conduit connector or threaded conduit has a locknut and a snap-on insulator. The outer surface of the locknut has grounding-lug mounting pads and raised members, and the inner surface has internal threads for screwing onto threads of conduit connector or a threaded end of the electrical conduit. The snap-on insulator has an annular body with an end face, the outer side of which has a cylindrical surface arranged to snap onto the raised members of the locknut. The cylindrical surface has open slots to receive the mounting pads on the locknut. The end face also has an inner cylindrical sleeve arranged to be placed inside the throat of the first cylindrical member of conduit connector.

Description

FIELD OF THE INVENTION[0001]The present invention is related to a locknut and, more specifically, to an insulated grounding hub locknut.BACKGROUND OF THE INVENTION[0002]Grounding hub locknuts are typically used in association with conduit connectors. Such conduit connectors are generally used to terminate electrical conduit with an electrical panel box.[0003]An electrical panel box is commonly used in electrical wiring installations. At least one of the sidewalls of the electrical panel box has a plurality of knockout holes to receive electrical conductors in an electrical conduit. The conduit usually terminates at a side of the electrical panel box through a knockout hole and is secured by a conduit connector. The conduit connector has first and second hollow cylindrical members, with outer threaded portions. The first and second cylindrical members are separated by a separation ring. The second cylindrical member is typically dimensioned to receive a locknut and compression ring t...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01R13/648H01R4/56H01R4/26
CPCH01R13/648H01R4/56H01R4/26H01R4/643H02G3/0691
Inventor SMITH, LAWRENCE J.
Owner BRIDGEPORT FITTINGS LLC