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:
Jul. 16, 2013
Filed:
Oct. 23, 2009
Applicants:
Manfred Meier, Fohnsdorf, AT;
Egmont Lammer, Knittelfeld, AT;
Inventors:
Manfred Meier, Fohnsdorf, AT;
Egmont Lammer, Knittelfeld, AT;
Assignee:
Sandvik Mining and Construction G.m.b.H., Zeltweg, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 25/06 (2006.01); E21D 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a heading or extraction machine () including extraction tools that are movable over the working face, and track walling devices such as anchor drilling and setting devices (), the machine () comprises a platform () that is displaceable in the longitudinal direction of the machine and carries at least two track walling devices each mounted to be separately displaceable relative to the platform ().