Grout anchored rock bolt

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Description

FIG. 1 is a perspective view of a grout anchored rock bolt showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation view thereof; and,

FIG. 7 is a left side elevation view thereof.

The grout anchored rock bolt is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.

Claims

The ornamental design for a grout anchored rock bolt, as shown and described.

Referenced Cited
U.S. Patent Documents
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4584247 April 22, 1986 Mulholland
4649729 March 17, 1987 McDowell
4955219 September 11, 1990 Josef
5054146 October 8, 1991 Wiesenfeld
5735653 April 7, 1998 Schiefer
6029417 February 29, 2000 Leibhard
6240696 June 5, 2001 Ludwig
6447228 September 10, 2002 Fergusson
7802951 September 28, 2010 Houck
D776272 January 10, 2017 Backes
20050123360 June 9, 2005 Mongrain
20100021245 January 28, 2010 Li
20110052343 March 3, 2011 Schmidt
20160177718 June 23, 2016 Cawood
Patent History
Patent number: D835977
Type: Grant
Filed: Feb 8, 2016
Date of Patent: Dec 18, 2018
Assignee: NCM INNOVATION (PTY) LTD. (Johannesburg)
Inventors: Paolo Ettore Pastorino (Johannesburg), Anthony Steyn (Johannesburg)
Primary Examiner: Sandra S Snapp
Assistant Examiner: Ieisha N Price
Application Number: 29/554,071
Classifications
Current U.S. Class: D8/387; D8/391