The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2018
Filed:
Aug. 18, 2017
Applicant:
Ncm Innovations (Pty) Ltd, Aeroton, Johannesburg, ZA;
Inventors:
Martin Cawood, Johannesburg, ZA;
Paolo Ettore Pastorino, Johannesburg, ZA;
Phillipus Van Der Merwe, Johannesburg, ZA;
Samuel Du Plessis, Johannesburg, ZA;
Assignee:
NCM INNOVATIONS (PTY) LTD, Johannesburg, ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 20/02 (2006.01); E21D 21/00 (2006.01);
U.S. Cl.
CPC ...
E21D 20/021 (2013.01); E21D 20/023 (2013.01); E21D 20/028 (2013.01); E21D 21/004 (2013.01); E21D 21/0006 (2013.01); E21D 21/008 (2013.01); E21D 21/0046 (2013.01); E21D 21/0086 (2013.01); E21D 20/02 (2013.01); E21D 21/0026 (2013.01);
Abstract
A rock bolt includes an elongate metallic body having a first end and an opposed second end, a threaded portion at the second end, for attaching thereto and locating thereon, a nut and a bearing plate, a mechanical anchor at, or at least partially located on, a first end portion of the body and a first resistive anchor, located between the threaded portion and the mechanical anchor.