Resin anchored rock bolt

- EPIROC DRILLING TOOLS AB
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Description

FIG. 1 is a top perspective view of a resin anchored rock bolt showing our new design. The bolt has three-way, one hundred twenty degree rotational symmetry;

FIG. 2 is a first side elevation view from the direction of II thereof, with the second and third sides being identical;

FIG. 3 is another first side elevation view from the direction of III thereof, with the second and third sides being identical;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top perspective enlarged detail view showing the portion of the bolt encircled in FIG. 1;

FIG. 7 is a top plan enlarged detail view showing FIG. 4;

FIG. 8 is a bottom plan enlarged detail view showing FIG. 5;

FIG. 9 is a first side elevation enlarged detail view showing the portion of the bolt encircled in FIG. 2, with the second and third sides being identical; and,

FIG. 10 is another first side elevation enlarged detail view showing the portion of the bolt encircled in FIG. 3, with the second and third sides being identical.

The dash-dash broken lines illustrate unclaimed portions of the resin anchored rock bolt and the dash-dot-dot-dash broken lines depict boundaries. All broken lines form no part of the claimed design.

Claims

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

Referenced Cited
U.S. Patent Documents
5688077 November 18, 1997 Kynoch
D589335 March 31, 2009 Horsch
D835977 December 18, 2018 Pastorino
20040136789 July 15, 2004 Fergusson
20050042037 February 24, 2005 Maltby
20050158127 July 21, 2005 Fergusson
20060127189 June 15, 2006 Hedrick
20130004245 January 3, 2013 Gharbani
20200088031 March 19, 2020 Crompton
Other references
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Patent History
Patent number: D922864
Type: Grant
Filed: Mar 14, 2019
Date of Patent: Jun 22, 2021
Assignee: EPIROC DRILLING TOOLS AB (Fagersta)
Inventors: Brendan Robert Crompton (Johannesburg), James William Sheppard (Johannesburg)
Primary Examiner: Janice Hallmark
Assistant Examiner: Elizabeth S Ko
Application Number: 29/683,625
Classifications
Current U.S. Class: D8/387