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. 12, 2022
Filed:
Jan. 31, 2018
Sandvik Mining and Construction G.m.b.h., Zeltweg, AT;
Ralf Grief, Weisskirchen in Steiermark, AT;
Stefan Hasler, WeiBkirchen, AT;
Karl Irregger, Weisskirchen, AT;
Stefan Steiner, Polstal, AT;
Gerhard Weinberger, Zeltweg, AT;
Sandvik Mining and Construction G.m.b.H., Zeltweg, AT;
Abstract
A heading machine includes first and second rotating cutting heads each having an axis of rotation extending substantially in a longitudinal direction of the machine, a first cutting roller having an axis of rotation extending substantially horizontal and transverse to the longitudinal direction of the machine, and a further cutting device supported on the cutting frame and arranged to cut off the cusps of unmined material left on side wall. The machine further includes a side stabilizer, and can cut a rectangular profile without leaving cusps left on the side wall.