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:
Apr. 06, 2021
Filed:
Sep. 25, 2019
Applicant:
Sandvik Mining and Construction Oy, Tampere, FI;
Inventors:
Maunu Mänttäri, Tampere, FI;
Anssi Kouhia, Tampere, FI;
Assignee:
SANDVIK MINING AND CONSTRUCTION OY, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/02 (2006.01); E21D 20/00 (2006.01); E21D 20/02 (2006.01); E21B 4/18 (2006.01);
U.S. Cl.
CPC ...
E21B 7/027 (2013.01); E21B 4/18 (2013.01); E21B 7/025 (2013.01); E21D 20/003 (2013.01); E21D 20/025 (2013.01); E21D 20/028 (2013.01);
Abstract
A rock drilling machine, rock drilling rig and method of reinforcing rock surfaces by means of grouting material is provided. The grouting material is fed through the rock drilling machine to a drilling tool connected to the rock drilling machine. The rock drilling machine include a flushing feed path, which is utilized in the feeding of the grouting material.