Locking collar quick union connection

Patent metadata

Field	Value
Publication number	US-10480696-B2
Application number	US-201514955841-A
Country	US
Kind code	B2
Filing date	Dec 1, 2015
Priority date	Dec 1, 2015
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A locking collar quick union connection comprises a split ring and a locking collar sub assembly. The locking collar sub assembly includes a collar, a locking ring, and a locking screw. The locking ring includes outer threads that engage inner threads formed on a larger inner diameter portion of the collar. The split ring includes outer threads that engage inner threads formed on a smaller inner diameter portion of the collar. The locking screw rotationally locks the locking ring to the locking collar.

First claim

We claim:

1. A locking collar quick union connection, comprising:
a split ring; and
a locking collar sub assembly including a collar, a locking ring, and a locking screw,
wherein the locking ring includes outer threads that engage inner threads formed on a larger inner diameter portion of the collar, wherein the split ring includes outer threads that engage inner threads formed on a smaller inner diameter portion of the collar, wherein the locking screw is threaded into a threaded bore of the locking ring and rotationally locks the locking ring to the collar, wherein rotation of the locking screw in one direction forces the locking ring radially inward, and wherein rotation of the locking screw in an opposite direction forces the locking ring radially outward.

2. The locking collar quick union connection of claim 1 , wherein a body of the split ring is split into two halves.

3. The locking collar quick union connection of claim 1 , wherein the split ring includes an upper shoulder that is substantially flush with an upper end of the collar when the split ring is threaded into the smaller inner diameter portion of the collar.

4. The locking collar quick union connection of claim 1 , wherein a body of the locking ring is split into two halves.

5. The locking collar quick union connection of claim 1 , wherein a bottom end of the locking ring is substantially flush with a bottom end of the collar when the locking ring is threaded into the larger inner diameter portion of the collar.

6. The locking collar quick union connection of claim 1 , wherein the locking ring includes inner threads configured to thread onto a threaded box end.

7. The locking collar quick union connection of claim 1 , wherein the locking screw is inserted into a counter bore formed in the collar.

8. The locking collar quick union connection of claim 7 , wherein the locking ring is moved into a rotationally locked position by rotation of the locking screw in one direction, and wherein the locking ring is moved out of the rotationally locked position by rotation of the locking screw in the opposite direction.

9. The locking collar quick union connection of claim 7 , further comprising a cover plate connected to an outer surface of the collar to force the locking screw to move the locking ring in a radial direction and to retain the locking screw within the collar.

10. The locking collar quick union connection of claim 9 , further comprising a set screw connected to the cover plate to retain the locking screw within the collar.

11. The locking collar quick union connection of claim 1 , further comprising one or more cap screws that rotationally lock the split ring to the collar.

Assignees

• Forum Us Inc

Inventors

• LEETH Douglas Brian
• Suter Roger Lane
• Krithivasan Rajesh
• Gober Joseph David

Classifications

• F16L19/0231

  with specially adapted means for positioning the threaded member behind the collar · CPC title

• F16L37/08 Primary

  in which the connection between abutting or axially overlapping ends is maintained by locking members (F16L37/22 - F16L37/26 take precedence) · CPC title

• F16L19/005

  comprising locking means for the threaded member · CPC title

• F16L15/08 Primary

  with supplementary elements (F16L15/04 takes precedence) · CPC title

• E21B17/046

  with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches · CPC title