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:
Jun. 13, 2023
Filed:
Aug. 03, 2021
Innovative Mining Products (Pty) Ltd, Johannesburg, ZA;
Brendan Robert Crompton, Johannesburg, ZA;
Martin Cawood, Johannesburg, ZA;
Paolo Ettore Pastorino, Johannesburg, ZA;
Rual Abreu, Johannesburg, ZA;
INNOVATIVE MINING PRODUCTS (PTY) LTD, Johannesburg, ZA;
Abstract
Disclosed is a rock bolt assembly including: an elongate bolt extending with distal and proximal ends; a tubular sleeve longitudinally extending between leading and trailing ends on the bolt so at least a proximal end portion projects from the trailing end of the sleeve; and a nozzle docking bush on the proximal end portion between the sleeve's trailing end and the bolt's proximal end. The bush has a cylindrical body between first and second ends, a central hole extending through the body, spaced-apart annular ridges on the cylindrical body, a grout distributing channel between the ridges, and an aperture in the channel connecting the channel and hole. The central hole includes a leading portion ending at the first end, sealingly receiving the trailing end. A trailing portion of the central hole ends at the second end and sealingly engages the bolt. Each annular ridge seals against a grout nozzle.