Inner tube of a core barrel

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Description

FIG. 1 is a perspective view of an inner tube of a core barrel;

FIG. 2 is a top plan view of the inner tube of a core barrel shown in FIG. 1;

FIG. 3 is a front elevation view of the inner tube of a core barrel shown in FIG. 1;

FIG. 4 is a rear elevation view of the inner tube of a core barrel shown in FIG. 1;

FIG. 5 is a perspective view of a first variant of the inner tube of a core barrel;

FIG. 6 is a top plan view of the variant of the inner tube of a core barrel shown in FIG. 5;

FIG. 7 is a front elevation view of the variant of the inner tube of a core barrel shown in FIG. 5; and,

FIG. 8 is a rear elevation view of the variant of the inner tube of a core barrel shown in FIG. 5.

Claims

I claim the ornamental design for an inner tube of a core barrel, as shown and described.

Referenced Cited
U.S. Patent Documents
7717472 May 18, 2010 Johnson
D643443 August 16, 2011 Drenth
D643859 August 23, 2011 Drenth
D644668 September 6, 2011 Drenth
D647540 October 25, 2011 Drenth
D649167 November 22, 2011 Drenth
8157025 April 17, 2012 Johnson
D664566 July 31, 2012 Drenth
D664567 July 31, 2012 Drenth
8360109 January 29, 2013 Johnson
9388652 July 12, 2016 Johnson
10294733 May 21, 2019 Johnson
Patent History
Patent number: D870778
Type: Grant
Filed: Aug 10, 2016
Date of Patent: Dec 24, 2019
Assignee: CANAMERA CORING INC. (Edmonton)
Inventor: Orren Johnson (Edmonton)
Primary Examiner: Mark A Goodwin
Application Number: 29/573,924