Centralizer

Information

  • Patent Grant
  • D743447
  • Patent Number
    D743,447
  • Date Filed
    Tuesday, September 30, 2014
    9 years ago
  • Date Issued
    Tuesday, November 17, 2015
    8 years ago
  • US Classifications
    Field of Search
    • US
    • D15 138-1442
    • D15 21
    • D15 123
    • 299 104-111
    • 241 207000
    • 219 137310
    • 219 13742-13744
    • 219 13761-13763
    • 219 074000
    • 219 075000
    • 166 2416-2417
    • D08 70
    • D23 213
    • D23 223
    • 239 419000
    • 239 424500
    • 239 549000
  • International Classifications
    • 1509
    • Term of Grant
      14Years
Abstract
Description


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.


Claims
  • The ornamental design for a centralizer, as shown.
US Referenced Citations (31)
Number Name Date Kind
3209836 Hall, Sr. Oct 1965 A
3312285 Solum Apr 1967 A
4088186 Callihan et al. May 1978 A
D252398 Grimsley Jul 1979 S
5238062 Reinholdt Aug 1993 A
5566754 Stokka Oct 1996 A
5575333 Lirette et al. Nov 1996 A
6209638 Mikolajczyk Apr 2001 B1
6453999 Reinholdt Sep 2002 B1
6533034 Barger Mar 2003 B1
6637511 Linaker Oct 2003 B2
6997254 Jenner Feb 2006 B2
7082997 Slack Aug 2006 B2
7182131 Gremillion Feb 2007 B2
7377325 Trinder et al. May 2008 B2
7849918 Ehlinger et al. Dec 2010 B2
7878241 Buytaert Feb 2011 B2
8196670 Jenner Jun 2012 B2
D662952 Kirk et al. Jul 2012 S
D671960 Kirk et al. Dec 2012 S
8555964 MacLeod Oct 2013 B2
D696093 Mackay-Sim Dec 2013 S
D717836 Buytaert et al. Nov 2014 S
D717837 Buytaert et al. Nov 2014 S
D718342 Buytaert et al. Nov 2014 S
D731277 Manwaring et al. Jun 2015 S
20030000607 Jenner Jan 2003 A1
20030230411 Richard Dec 2003 A1
20090025929 Buytaert et al. Jan 2009 A1
20120186828 Lively et al. Jul 2012 A1
20130248207 Kirk et al. Sep 2013 A1
Non-Patent Literature Citations (4)
Entry
Author Unknown, Frank's International Direct, vol. 1, Issue 2, 2001, pp. 9-10.
Jean Buytaert et al., “One-Piece Centralizer with an Axial Seam and End-Collar Tabs”, U.S. Appl. No. 29/486,157, filed Mar. 26, 2014.
Jean Buytaert et al., “One-Piece Centralizer with an Axial Seam”, U.S. Appl. No. 29/486,160, filed Mar. 26, 2014.
Jean Buytaert et al., “One-Piece Centralizer with an Axial Seam and Windows”, U.S. Appl. No. 29/486,162, filed Mar. 26, 2014.