FIG. 1 is a perspective view of a centralizer connected to the tabs. The tabs extend inwards, toward one another, and the engaging rings are disposed axially-intermediate of the tabs.
FIG. 2 is an end view of the centralizer.
FIG. 3 is side view of the centralizer.
FIG. 4 is a perspective view of the centralizer disposed on an oilfield tubular (e.g., casing or drill pipe). A stop collar is disposed axially-intermediate of the engaging rings.
FIG. 5 is a side view of the centralizer, showing axially-extending seams thereof positioned circumferentially between the tabs.
FIG. 6 is an end view of the centralizer of FIG. 5, showing the radial-extension of the seams.
FIG. 7 is a side view of the centralizer, showing two of the axially-extending seams extending across the tabs.
FIG. 8 is an end view of the centralizer of FIG. 7, showing the radial-extension of the seam; and,
FIG. 9 is a side view of the centralizer, showing offset, axially-extending seams thereof. The end view of the centralizer of FIG. 9 is shown in FIG. 6.
The broken lines in the drawings depict unclaimed environmental subject matter.
Patent |
Priority |
Assignee |
Title |
3209836, |
|
|
|
3312285, |
|
|
|
4088186, |
Dec 22 1976 |
FIRST INTERSTATE BANK OF TEXAS, N A |
Centering device for well conduit |
5238062, |
Apr 27 1991 |
Weatherford/Lamb, Inc. |
Centralizer for centring drilling and casing pipes and centralizing arrangement including said centralizer |
5566754, |
Sep 24 1994 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Centralisers |
5575333, |
Jun 07 1995 |
Weatherford Lamb, Inc |
Centralizer |
6209638, |
Apr 30 1999 |
|
Casing accessory equipment |
6453999, |
Feb 23 1998 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Centralizer |
6533034, |
May 15 2000 |
National Oilwell DHT, LP |
Centralized stop collar for floating centralizer |
6637511, |
May 08 2000 |
Kwik-Zip Pty. Ltd. |
Borehole casing centralizer |
6997254, |
Jun 27 2001 |
CENTEK LIMITED |
Method of making a centering device and centering device formed by that method |
7082997, |
Jun 15 2001 |
NABORS DRILLING TECHNOLOGIES USA, INC |
Pipe centralizer and method of attachment |
7182131, |
Sep 06 2000 |
TERCEL OILFIELD PRODUCTS USA L L C |
Dual diameter and rotating centralizer/sub and method |
7377325, |
Jun 28 2003 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Centraliser |
7849918, |
Jul 02 2007 |
GLAS USA LLC, AS SUCESSOR AGENT AND ASSIGNEE |
Centering structure for tubular member and method of making same |
7878241, |
May 16 2007 |
INNOVEX DOWNHOLE SOLUTIONS, LLC |
Expandable centralizer for expandable pipe string |
8196670, |
Aug 10 2009 |
CENTEK LIMITED |
Downhole device |
8555964, |
Dec 03 2007 |
Wells Fargo Bank, National Association |
Centraliser |
20030000607, |
|
|
|
20030230411, |
|
|
|
20090025929, |
|
|
|
20120186828, |
|
|
|
20130248207, |
|
|
|
D252398, |
Feb 23 1977 |
|
Boring bar housing |
D662952, |
Feb 24 2011 |
Downhole Products Limited |
Centraliser |
D671960, |
Feb 24 2011 |
Downhole Products Limited |
Centraliser |
D696093, |
Sep 27 2011 |
Macsim Fastenings Pty Limited |
Depth limiting device for drilling tool |
D717836, |
Mar 26 2014 |
INNOVEX DOWNHOLE SOLUTIONS, LLC |
One-piece centralizer with an axial seam and end-collar tabs |
D717837, |
Mar 26 2014 |
INNOVEX DOWNHOLE SOLUTIONS, LLC |
One-piece centralizer with an axial seam |
D718342, |
Mar 26 2014 |
INNOVEX DOWNHOLE SOLUTIONS, LLC |
One-piece centralizer with an axial seam and windows |
D731277, |
Aug 16 2013 |
MAGNA-SONIC STRESS TESTERS, INC |
Barrel for pipe end refacing tool |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 30 2014 | | ANTELOPE TOOL & MFG. CO. | (assignment on the face of the patent) | | / |
Dec 09 2014 | MILLER, EUGENE | ANTELOPE OIL TOOL & MFG CO , LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 034443 | /0995 |
pdf |
Dec 09 2014 | PENRY, CHRISTOPHER M | ANTELOPE OIL TOOL & MFG CO , LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 034443 | /0995 |
pdf |
Dec 09 2014 | NEEL, JESSE L | ANTELOPE OIL TOOL & MFG CO , LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 034443 | /0995 |
pdf |
Jan 08 2016 | ANTELOPE OIL TOOL & MFG CO , LLC | Wells Fargo Bank, National Association | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 037553 | /0565 |
pdf |
Oct 31 2016 | ANTELOPE OIL TOOL & MFG CO , LLC | Wells Fargo Bank, National Association | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 040545 | /0318 |
pdf |
Feb 16 2018 | ANTELOPE OIL TOOL & MFG CO , LLC | INNOVEX DOWNHOLE SOLUTIONS, INC | MERGER SEE DOCUMENT FOR DETAILS | 045523 | /0542 |
pdf |
Sep 07 2018 | Wells Fargo Bank, National Association | INNOVEX DOWNHOLE SOLUTIONS, INC | RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 047157 | /0432 |
pdf |
Sep 07 2018 | INNOVEX DOWNHOLE SOLUTIONS, INC | PNC BANK, NATIONAL ASSOCIATION, AS AGENT | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 047572 | /0843 |
pdf |
Jun 10 2019 | Quick Connectors, Inc | PNC BANK, NATIONAL ASSOCIATION, AS AGENT | AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT | 049454 | /0374 |
pdf |
Jun 10 2019 | INNOVEX ENERSERVE ASSETCO, LLC | PNC BANK, NATIONAL ASSOCIATION, AS AGENT | AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT | 049454 | /0374 |
pdf |
Jun 10 2019 | INNOVEX DOWNHOLE SOLUTIONS, INC | PNC BANK, NATIONAL ASSOCIATION, AS AGENT | AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT | 049454 | /0374 |
pdf |
Jun 10 2022 | TOP-CO INC | PNC Bank, National Association | SECOND AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT | 060438 | /0932 |
pdf |
Jun 10 2022 | TERCEL OILFIELD PRODUCTS USA L L C | PNC Bank, National Association | SECOND AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT | 060438 | /0932 |
pdf |
Jun 10 2022 | INNOVEX DOWNHOLE SOLUTIONS, INC | PNC Bank, National Association | SECOND AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT | 060438 | /0932 |
pdf |
Sep 06 2024 | INNOVEX DOWNHOLE SOLUTIONS, INC | INNOVEX DOWNHOLE SOLUTIONS, LLC | MERGER SEE DOCUMENT FOR DETAILS | 069173 | /0199 |
pdf |