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:
Oct. 27, 2020
Filed:
Jun. 10, 2016
Applicant:
Sandvik Intellectual Property Ab, Sandviken, SE;
Inventors:
Thomas Galler, Mur, AT;
Bruno Reumuller, Knittelfeld, AT;
Assignee:
Sandvik Intellectual Property AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 23/00 (2006.01); E21C 27/24 (2006.01); E21D 19/04 (2006.01); E21D 20/00 (2006.01); E21D 11/40 (2006.01);
U.S. Cl.
CPC ...
E21D 23/0095 (2013.01); E21C 27/24 (2013.01); E21D 11/40 (2013.01); E21D 19/04 (2013.01); E21D 20/003 (2013.01);
Abstract
An active temporary roof support apparatus for attachment to a mining machine includes at least one set of support members, each set including at least a first support member and a second support member for supporting the roof of an underground tunnel. A drive assembly is arranged to drive the set of support members, such that the first and second support members are sequentially moved for engaging the roof so that the roof is supported by at least one support member during an excavation operation of the mining machine. A mining machine and a corresponding method is also provided.