Liquid epoxy brush barrier

Patent metadata

Field	Value
Publication number	US-11355909-B2
Application number	US-202117343803-A
Country	US
Kind code	B2
Filing date	Jun 10, 2021
Priority date	Jul 12, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

An electrical fitting including a body having an inner cavity for receiving a plurality of conductors, the inner cavity including a first portion extending to a first exterior opening and a second portion extending to a second exterior opening, and a brush barrier positioned within the inner cavity between the first portion and the second portion, the brush barrier including an outer edge and a plurality of bristles extending inwardly from the outer edge, the bristles being displaceable by the conductors, wherein the electrical fitting is configured to receive a sealing compound within the first portion of the inner cavity between the first exterior opening of the first portion and the brush barrier, the sealing compound being at least partially prevented from propagating into the second portion of the inner cavity by the brush barrier.

First claim

What is claimed is:

1. An electrical fitting, comprising:
a body having an inner cavity for receiving a plurality of conductors, the inner cavity including a first portion extending to a first exterior opening and a second portion extending to a second exterior opening; and
a brush barrier positioned within the inner cavity between the first portion and the second portion, said brush barrier including an outer edge and a plurality of bristles extending inwardly from the outer edge, the bristles being displaceable by the conductors; and
wherein said electrical fitting is configured to receive a sealing compound within the first portion of the inner cavity between the first exterior opening of the first portion and said brush barrier, the sealing compound being at least partially prevented from propagating into the second portion of the inner cavity by said brush barrier.

2. The electrical fitting of claim 1 , wherein the bristles extend perpendicular to a longitudinal axis of the inner cavity.

3. The electrical fitting of claim 1 , wherein the bristles have distal ends defining a central opening in said brush barrier, the conductors at least partially passing through the central opening.

4. The electrical fitting of claim 1 , wherein the inner cavity includes an abutment, wherein said brush barrier rests against the abutment.

5. The electrical fitting of claim 4 , further comprising a stop element engaged within the inner cavity and securing said brush barrier against the abutment.

6. The electrical fitting of claim 5 , wherein the stop element is a rubber grommet.

7. The electrical fitting of claim 1 , wherein the outer edge of said brush barrier has a helical shape.

8. The electrical fitting of claim 1 , wherein the brush barrier is at least partially secured within the inner cavity by friction between the outer edge and an inner surface of the inner cavity.

9. The electrical fitting of claim 1 , wherein said body includes an entry component and a potting chamber slidably engaged within the entry component, wherein an interior of the potting chamber defines the first portion of the inner cavity.

10. The electrical fitting of claim 1 , wherein the outer edge of said brush barrier is comprised of a metal.

11. The electrical fitting of claim 10 , wherein the bristles of said brush barrier are comprised of a synthetic fiber.

12. An electrical fitting, comprising:
a body having an inner cavity for receiving a plurality of conductors, the inner cavity having a first exterior opening and a second exterior opening;
a felt fiber barrier positioned within the inner cavity inboard from each of the first and second exterior openings, said felt fiber barrier including an outer edge and a plurality of bendable elements extending inwardly from the outer edge, the bendable elements defined by a plurality of slices in said felt fiber barrier; and
wherein said electrical fitting is configured to receive a sealing compound within the inner cavity between the first exterior opening and said felt fiber barrier, the sealing compound being at least partially prevented from propagating to the second exterior opening by said felt fiber barrier.

13. The electrical fitting of claim 12 , wherein the bendable elements extend perpendicular to a longitudinal axis of the inner cavity.

14. The electrical fitting according to claim 12 , wherein said felt fiber barrier includes at least two layers of felt fiber each including a plurality of slices.

15. The electrical fitting of claim 12 , wherein the inner cavity includes an abutment, said barrier resting against the abutment, and a stop element engaged within the inner cavity and securing said felt fiber barrier against the abutment.

16. A method of assembling an electrical fitting, comprising steps of:
providing a barrier including an outer edge and a plurality of bendable elements extending inwardly from the outer edge;
placing the barrier within an inner cavity of the electrical fitting between a first portion of the inner cavity and a second portion of the inner cavity, the plurality of bendable elements extending perpendicular to a longitudinal axis of the inner cavity;
placing at least one conductor into the second portion of the inner cavity, a distal portion of the at least one conductor extending through the barrier and into the first portion of the inner cavity; and
filling the first portion of the inner cavity with a sealing compound, the barrier substantially preventing leakage of the sealing compound into the second portion of the inner cavity.

17. The method of claim 16 , wherein the barrier is felt fiber barrier including a plurality of slices, the plurality of bendable elements being wedged sections defined by the slices.

18. The method of claim 16 , wherein the barrier is a brush barrier, the plurality of bendable elements being bristles extending inwardly from the outer edge.

19. The method of claim 16 , wherein the step of placing the barrier in the inner cavity includes placing the barrier against an abutment in the inner cavity, wherein the method further comprises a step of securing a stop element within the inner cavity against the barrier.

20. The method of claim 19 , wherein the stop element is a rubber grommet.

Assignees

• Hubbell Inc

Inventors

• Santoro Nicholas Adam
• Minski Christopher John
• Schinner Michael Charles

Classifications

• H02G15/013 Primary

  Sealing means for cable inlets (inlets for cables filled with, or surrounded by, gas or oil H02G15/32) · CPC title

• H02G15/003

  Filling materials, e.g. solid or fluid insulation · CPC title

• H02G15/00 Primary

  Cable fittings · CPC title

• H02G1/00

  Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines · CPC title

• H02G3/22

  Installations of cables or lines through walls, floors or ceilings, e.g. into buildings · CPC title