Casing centralizer

Description

This application is related to (1) U.S. Design application Ser. No. 29/405,113, filed Oct. 28, 2011; (2) U.S. Design application Ser. No. 29/405,121, filed Oct. 28, 2011; (3) U.S. Design application Ser. No. 29/405,122, filed Oct. 28, 2011; (4) U.S. Design application Ser. No. 29/405,124, filed Oct. 28, 2011; (5) U.S. Design application Ser. No. 29/405,130, filed Oct. 28, 2011; and, (6) U.S. Design application Ser. No. 29/405,133, filed Oct. 28, 2011, the entire disclosures of which are incorporated herein by reference.

FIG. 1 is a perspective view of a casing centralizer showing our new design according to a first embodiment;

FIG. 2 is an elevational view of the first embodiment;

FIG. 3 is a top plan view of the first embodiment, the bottom plan view of the first embodiment being identical to the top plan view of the first embodiment;

FIG. 4 is a sectional view of the first embodiment taken along line 4-4 of FIG. 3;

FIG. 5 is an elevational view of the casing centralizer according to a second embodiment, the second embodiment being identical to the first embodiment except that the second embodiment has one indeterminate length as indicated in FIG. 5;

FIG. 6 is a top plan view of the casing centralizer according to a third embodiment, the third embodiment being identical to the first embodiment except that the third embodiment has six indeterminate lengths as indicated in FIG. 6;

FIG. 7 is a perspective view of the casing centralizer showing our new design according to a fourth embodiment;

FIG. 8 is an elevational view of the fourth embodiment;

FIG. 9 is a top plan view of the fourth embodiment, the bottom plan view of the fourth embodiment being identical to the top plan view of the fourth embodiment;

FIG. 10 is a sectional view of the fourth embodiment taken along line 10-10 of FIG. 9;

FIG. 11 is an elevational view of the casing centralizer according to a fifth embodiment, the fifth embodiment being identical to the fourth embodiment except that the fifth embodiment has one indeterminate length as indicated in FIG. 11; and,

FIG. 12 is a top plan view of the casing centralizer according to a sixth embodiment, the sixth embodiment being identical to the fourth embodiment except that the sixth embodiment has six indeterminate lengths as indicated in FIG. 12.

Claims

CLAIM The ornamental design for a casing centralizer, as shown and described.

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Inventors:	Andrigo; Gregory (Almonte, CA), Sanchez; Alfredo (Tomball, TX)
Assignee:	Top-Co Cementing Products Inc. (Weatherford, TX)
Appl. No.:	D/405,117
Filed:	October 28, 2011

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Current U.S. Class:	D15/21
Current International Class:	1503
Field of Search:	;D15/10,21 ;166/384,241.1-241.7,213,173,208,382 ;175/325.5,325.1,325.2,325.3 ;138/108,112 ;228/155 ;72/393

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Primary Examiner: Goodwin; Mark
Attorney, Agent or Firm: Haynes and Boone, LLP