Non-metallic conduit hubs

Patent metadata

Field	Value
Publication number	US-12359761-B2
Application number	US-202217953902-A
Country	US
Kind code	B2
Filing date	Sep 27, 2022
Priority date	Sep 27, 2021
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

Non-metallic conduit hubs are provided herein, having a flange configured for attachment to an electrical box, a receiving member extending from a first side of the flange and defining a bore sized for receiving a conduit, an indexing indicator extending radially outward from the receiving member for providing a tactile indication of an orientation of the conduit hub, and an alignment member extending from a second side of the flange and having an outer diameter sized for insertion into an ingress/egress port of the electrical box, wherein the bore extends through the receiving member, the flange, and the alignment member to facilitate routing of wires from the conduit into the electrical box.

First claim

What is claimed is:

1. A non-metallic conduit hub comprising:
a flange having opposing first and second sides and configured for attachment to an electrical box such that, when the flange is attached to the electrical box, the second side of the flange faces the electrical box;
a receiving member connected at a first end to the first side of the flange and extending outward from the first side of the flange away from the electrical box such that, when the flange is attached to the electrical box, the receiving member is positioned entirely exterior to the electrical box, the receiving member defining a bore sized for receiving a conduit, a bottom of the receiving member aligned with a lower edge of the flange;
an indexing indicator extending radially outward from the receiving member for providing a tactile indication of an orientation of the conduit hub; and
an alignment member extending outward from the second side of the flange, away from the first side of the flange and the receiving member, the alignment member having an outer diameter sized for insertion into an ingress/egress port of the electrical box,
wherein the bore extends through the receiving member, the flange, and the alignment member to facilitate routing of wires from the conduit into the electrical box,
wherein the flange is attachable to the electrical box only in an upright orientation of the non-metallic conduit hub wherein the lower edge of the flange is aligned with a bottom of the electrical box.

2. The non-metallic conduit hub of claim 1 , wherein the flange further comprises a plurality of flange bolt holes patterned for alignment with a corresponding plurality of electrical box bolt holes of the electrical box for bolting of the non-metallic conduit hub to the electrical box.

3. The non-metallic conduit hub of claim 1 , wherein the flange is sized to slide into tracks of a slot formed on the electrical box.

4. The non-metallic conduit hub of claim 1 , further comprising an adhesive for adhering the flange to the electrical box.

5. The non-metallic conduit hub of claim 1 , further comprising a keying feature defined in the indexing indicator of the receiving member for receiving a key of a keyed adapter.

6. The non-metallic conduit hub of claim 5 , wherein the keyed adapter further comprises an adapted bore defined therein, the adapted bore having a smaller diameter than a diameter of the bore of the receiving member.

7. The non-metallic conduit hub of claim 5 , wherein the keying feature is a slot.

8. The non-metallic conduit hub of claim 1 , wherein the non-metallic conduit hub is constructed of at least one of PVC, fiberglass reinforced epoxy, reinforced thermosetting resin, or combinations thereof.

9. The non-metallic conduit hub of claim 1 , wherein the electrical box is constructed of at least one of metal or metal having a corrosion resistant coating.

10. The non-metallic conduit hub of claim 1 , wherein the electrical box is a non-metallic electrical box, the non-metallic electrical box being constructed of at least one of PVC, fiberglass reinforced epoxy, reinforced thermosetting resin, or combinations thereof.

11. An electrical box assembly comprising:
an electrical box including:
a wiring box, and
an ingress/egress port defined in the wiring box; and

a non-metallic conduit hub including:
a flange having opposing first and second sides and configured for attachment to an electrical box such that, when the flange is attached to the electrical box, the second side of the flange faces the electrical box,
a receiving member connected at a first end to the first side of the flange and extending outward from the first side of the flange away from the electrical box such that, when the flange is attached to the electrical box, the receiving member is positioned entirely exterior to the electrical box, the receiving member defining a bore sized for receiving a conduit, a bottom of the receiving member aligned with a lower edge of the flange,
an indexing indicator extending radially outward from the receiving member for providing a tactile indication of an orientation of the conduit hub, and
an alignment member extending outward from the second side of the flange, away from the first side of the flange and the receiving member, the alignment member having an outer diameter sized for insertion into the ingress/egress port of the electrical box,
wherein the bore extends through the receiving member, the flange, and the alignment member to facilitate routing of wires from the conduit into the electrical box, and
wherein the flange is attachable to the electrical box only in an upright orientation of the non-metallic conduit hub wherein the lower edge of the flange is aligned with a bottom of the electrical box.

12. The assembly of claim 11 , further comprising a keying feature defined in the indexing indicator of the receiving member.

13. The assembly of claim 12 , further comprising a keyed adapter received in the bore of the receiving member and having a key received in the keying feature of the non-metallic conduit hub.

14. The assembly of claim 13 , wherein the keyed adapter further comprises an adapted bore defined therein, the adapted bore having a smaller diameter than a diameter of the bore of the receiving member.

15. A method for installing a non-metallic conduit into a metallic electrical box comprising:
removing a knockout plate from the metallic electrical box to expose an ingress/egress port;
inserting an alignment member extending outward from a second side of a flange of a non-metallic conduit hub into the ingress/egress port of the electrical box such that the second side of the flange faces the electrical box, the non-metallic conduit hub further having a receiving member connected at a first end to an opposing first side of the flange and extending outward from the first side of the flange, away from the second side of the flange, the alignment member, and the electrical box such that, when the flange is attached to the electrical box, the receiving member is positioned entirely exterior to the electrical box, wherein a bottom of the receiving member is aligned with a lower edge of the flange;
positioning an indexing indicator extending radially outward from the receiving member of the non-metallic conduit hub in a prescribed orientation to orient the non-metallic conduit hub relative to the electrical box;
attaching the flange of the non-metallic conduit hub to the electrical box such that a bore sized for receiving a conduit extends through the receiving member, the flange, and the alignment member and into the electrical box via the ingress/egress port; and
installing a non-metallic conduit in the receiving member of the non-metallic conduit hub,
wherein the flange is attachable to the electrical box only in an upright orientation of the non-metallic conduit hub wherein the lower edge of the flange is aligned with a bottom of the electrical box.

16. The method of claim 15 , wherein the step of attaching the flange further comprises bolting the flange to the electrical box via a plurality of flange bolt holes and a corresponding plurality of electrical box bolt holes.

17. The method of claim 15 , wherein the step of attaching the flange further comprises sliding the flange into a slot formed on the electrical box.

18. The method of claim 15 , wherein the step of attaching the flange further comprises adhering the flange to the electrical box using an adhesive.

19. The method of claim 15 , further comprising inserting a key

Assignees

• Hubbell Inc

Inventors

• Wurms Scott B
• Cretella Joseph

Classifications

• F16L47/28

  Joining pipes to walls or to other pipes, the axis of the joined pipe being perpendicular to the wall or to the axis of the other pipe · CPC title

• H02G3/085 Primary

  including knock-out or tear-out sections · CPC title

• F16L2201/10

  Indicators for correct coupling · CPC title

• F16L47/14 Primary

  Flanged joints · CPC title