Joint restraint device

Patent metadata

Field	Value
Publication number	US-11796103-B2
Application number	US-202117409945-A
Country	US
Kind code	B2
Filing date	Aug 24, 2021
Priority date	Apr 19, 2017
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

A method of coupling a pipe length to a piping element can include arranging a gland over an end of the pipe length, the gland including a joint restraint assembly, the pipe length defining an outer pipe surface; arranging the end of the pipe length within a socket defined by the piping element; fastening the gland to the piping element; and activating the joint restraint assembly by hand to prevent removal of the pipe length from the socket.

First claim

That which is claimed is:

1. A method of coupling a pipe length to a piping element, the method comprising:
arranging a gland over an end of the pipe length defining an outer pipe surface, the gland comprising a gasket captured within a joint restraint assembly comprising a restraint base being selectively movable from a deactivated position to an activated position;
arranging the end of the pipe length within a shoulder of the gland wherein the end of the pipe length is coupled to the shoulder defining a socket defined by the piping element;
fastening the gland to the piping element; and
activating the joint restraint assembly by hand to prevent removal of the pipe length from the socket.

2. The method of claim 1 , wherein activating the joint restraint assembly by hand comprises arranging a cover in contact with the joint restraint assembly from the deactivated position to the activated position, wherein arranging the joint restraint assembly in the activated position thereby rotates a gripper in an engagement direction of the joint restraint assembly, and wherein the gripper engages with the outer pipe surface in an initial engagement position.

3. The method of claim 2 , wherein arranging the cover from the deactivated position to the activated position further comprises arranging a tab stop within a tab stop locator, wherein the tab stop is connected to a cover engagement wall of the cover and wherein the tab stop locator is defined in an outer surface of the gland.

4. The method of claim 2 , wherein:
the gripper comprises a plurality of gripping protuberances; and
engaging the gripper with the outer pipe surface in the initial engagement position comprises engaging a one of the plurality of gripping protuberances with the outer pipe surface.

5. The method of claim 4 , further comprising rotating the gripper in the engagement direction to a final engagement position wherein each of the plurality of gripping protuberances engage the outer pipe surface.

6. The method of claim 1 , wherein:
the gland defines a gland bore;
the gland bore defines a gland axis;
a gripper defines an engagement end and a lever end disposed opposite from the engagement end; and
rotating the gripper in an engagement direction comprises moving the engagement end inwards towards the gland axis.

7. The method of claim 1 , wherein fastening the gland to the piping element further comprises engaging an impact arm of a cover with the piping element, and wherein activating the joint restraint assembly comprises further fastening of the gland to the piping element after the impact arm of the cover is engaged with the piping element.

Assignees

• Mueller Int Llc

Inventors

• Furcoiu Aurelian Ioan

Classifications

• F16L37/127 Primary

  using hooks hinged about an axis {(F16L37/1215 takes precedence)} · CPC title

• F16L21/04

  in which sealing rings are compressed by axially-movable members · CPC title

• F16L21/08 Primary

  with additional locking means (F16L21/06 takes precedence; couplings of the quick-acting type F16L37/00) · CPC title

• F16L2201/80

  Dust covers · CPC title