Cable gland assembly

Patent metadata

Field	Value
Publication number	US-10389102-B2
Application number	US-201615762675-A
Country	US
Kind code	B2
Filing date	Sep 23, 2016
Priority date	Sep 25, 2015
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

A gland assembly includes a gland body (3) and a cap nut (5) connected by screw threads (25). A cable holding device (11) is received within the cap nut (5) and has a plurality of fingers (19) configured to apply a gripping force to a cable (7) extending through the gland assembly in response to a torque applied to the cap nut (5).The fingers (19) are configured to increase the gripping force on the cable (7) in response to a linear force applied to the elongate member.

First claim

The invention claimed is:

1. A gland assembly including a gland member; and a holding device received within the gland member, the holding device and gland assembly configured to apply a gripping force to an elongate member extending through the gland assembly in response to a torque applied to the gland member, the holding device further configured to increase the gripping force on the elongate member in response to a linear force applied to the elongate member wherein the holding device includes gripping means and a support member, the gripping means comprising a hub and one or more fingers extending from the hub in a direction away from the support member, said gripping means configured to engage the surface of the elongate member, and wherein the hub is rotatable relative to the support member.

2. The gland assembly of claim 1 wherein the gripping force is applied by the holding device engaging the surface of the elongate member.

3. The gland assembly of claim 1 wherein the gripping means is arranged such that the engagement between the holding device and the elongate member increases in response to the linear force applied to the elongate member.

4. The gland assembly of claim 1 wherein the one or more fingers have ridges on an inner surface, arranged to contact the elongate member, in use.

5. The gland assembly of claim 4 wherein the ridges are angled in the opposite direction to a linear force pulling the elongate member out of the gland member such that they engage in response to the linear force, and oppose the linear force.

6. The gland assembly of claim 1 wherein the holding device engages the elongate member around a part or the whole of a circumference of the elongate member; and wherein the holding device extends along a portion of the length of the elongate member received in the gland assembly.

7. The gland assembly of claim 1 further comprising a seal.

8. The gland assembly of claim 7 wherein the seal is integral with or separate from the holding device.

9. The gland assembly of claim 7 wherein the gland member comprises a first end forming an end of the gland assembly, and a second end opposite the first end, the second end configured to be coupled to a second gland member, wherein the seal may be provided between the first end and the holding device, or between the second end and the holding device.

10. The gland assembly of claim 9 wherein the holding device engages the elongate member at a first position along the length of the elongate member, and the seal engages the elongate member at a second position along the elongate member.

11. The gland assembly of claim 1 further comprising a second gland member, the gland member and the second gland member being engageable by means of mating screw threads, wherein the holding device, gland member and second gland member are configured such that the gripping force is applied in response to rotation of the gland member relative to the second gland member to engage and tighten the mating screw threads.

12. The gland assembly of claim 11 wherein the holding device is deformable such that it deforms in order to apply the gripping force as the screw threads are engaged and tightened.

13. A gland assembly including a gland member; and a holding device received within the gland member, the holding device and gland assembly configured to apply a gripping force to an elongate member extending through the gland assembly in response to a torque applied to the gland member, the holding device further configured to increase the gripping force on the elongate member in response to a linear force applied to the elongate member, wherein the holding device includes gripping means, the gripping means configured to engage the surface of the elongate member, wherein the gripping means comprises a resiliently biased member, wherein the resiliently biased member is a helical spring, arranged, in use, around the elongate member.

14. The gland assembly of claim 13 wherein the spring has a constant diameter, or a tapering diameter.

15. The gland assembly of claim 13 wherein the resiliently biased gripping means is resiliently biased against the linear force.

16. The gland assembly of claim 13 wherein the resiliently biased gripping means is resiliently biased against twisting of the elongate member relative to the gland assembly.

17. The gland assembly of claim 13 further comprising a seal.

18. The gland assembly of claim 17 wherein the seal is integral with or separate from the holding device.

19. The gland assembly of claim 17 wherein the gland member comprises a first end forming an end of the gland assembly, and a second end opposite the first end, the second end configured to be coupled to a second gland member, wherein the seal may be provided between the first end and the holding device, or between the second end and the holding device.

20. The gland assembly of claim 19 wherein the holding device engages the elongate member at a first position along the length of the elongate member, and the seal engages the elongate member at a second position along the elongate member.

Assignees

• Hubbell Ltd
• Hubbell Inc

Inventors

• Jackson Carl
• Clark Jason

Classifications

• H02G3/0666

  with means clamping the armour of the conductor (H02G3/0675, H02G3/0683 take precedence) · CPC title

• H02G15/007 Primary

  Devices for relieving mechanical stress · CPC title

• F16L5/06

  by means of a swivel nut compressing a ring or sleeve · CPC title

• H02G15/013 Primary

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

• F16L5/02

  Sealing · CPC title