[12] Patent
[11] Patent No.:GC0009451  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/142098
Date of the Decision to Grant the Patent:23/Dec/2018

[21] Application No.:GC 2018-34628

[22] Filing Date:18/1/2018

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
18/1/2017
62/447,536

[72] Inventor: Malcolm GOFF

[73] Owner: Malcolm GOFF, 212084 Range Rd 154, P.O. Box 102, Rosemary, Alberta T0J 2W0, Canada

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
Int. Cl.: E21B 33/03, 33/068, 33/08; F16J 15/18, 15/26 (2006.01)

[56] Cited Documents:

-US 1566256 A (TROUT, W.A, et al) 15 December 1925
-US 1947198 A (GOBLE, B.G) 13 February 1934
 
Examiner: Eng. Imad A. AlAhaidib

[54] SELF-ALIGNING STUFFING BOX
[57] Abstract: A self-aligning stuffing box is provided for mounting to a wellhead and aligning with a polished rod extending therethrough. The stuffing box has an upper sealing section housing stuffing box seals and an annular retaining plate for clamping a flange portion of the sealing section to the wellhead. The flanged portion of the sealing section has oversized bolt apertures, allowing it to be laterally displaced relative to the wellhead before being secured to the wellhead. The retaining plate and the wellhead have bolt apertures corresponding to the oversized apertures. The stuffing box can be mounted on a wellhead using a plurality of fasteners. The stuffing box can be aligned with a polished rod by loosening the fasteners and stroking the polished rod to allow the sealing section to be laterally displaced. The fasteners can then be tightened or re-tightened to secure the sealing section to the wellhead.
No. of claims: 16     No. of figures: 7


 

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