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:
Aug. 04, 2015
Filed:
Sep. 12, 2012
Applicant:
Ossi Kahra, Tampere, FI;
Inventor:
Ossi Kahra, Tampere, FI;
Assignee:
SANDVIK MINING & CONSTRUCTION OY, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25D 17/02 (2006.01); B28D 1/26 (2006.01); B28D 1/28 (2006.01); E02F 3/96 (2006.01); B25D 9/12 (2006.01); E21C 27/28 (2006.01); E21D 9/10 (2006.01);
U.S. Cl.
CPC ...
B25D 17/02 (2013.01); B25D 9/125 (2013.01); B28D 1/26 (2013.01); B28D 1/28 (2013.01); E02F 3/966 (2013.01); E21C 27/28 (2013.01); E21D 9/106 (2013.01); B25D 2217/0007 (2013.01);
Abstract
The invention relates to a tool for a breaking hammer, a breaking hammer, and the use of a breaking hammer. The breaking hammer includes a percussion device, the percussion piston of which providing impacts to the tool for breaking rock. An impact surface of the tool has a curved form surface that has a radius of curvature and a center axis on the longitudinal axis of the tool. The direction of the centre axis is transverse to the plane through the longitudinal axis of the boom of a work machine.