Title:
CUTTING BIT AND BIT HOLDER
Document Type and Number:
WIPO Patent Application WO/2012/143153
Kind Code:
A3
Abstract:
A cutting bit (1) for use in a heavy-duty mining, drilling or milling operation is disclosed. The cutting bit comprises a generally conical body (15), a first end (11) of which presenting a cutting point (13) and a second end (12) of which presenting an axially extending recess (14), having a generally convex surface portion, and having locking means (19) for releasably and rotatably connecting the cutting bit to a protruding part (22) of a bit holder (2). The recess has an entrance portion presenting a generally conical surface portion. A corresponding bit holder (2) is presented as well as a system comprising such cutting bit (1) and bit holder (2).
Inventors:
FADER JOSEPH (AT)
Application Number:
PCT/EP2012/052859
Publication Date:
April 04, 2013
Filing Date:
February 20, 2012
Export Citation:
Assignee:
SANDVIK INTELLECTUAL PROPERTY (SE)
FADER JOSEPH (AT)
FADER JOSEPH (AT)
International Classes:
E21C35/19
Foreign References:
| US3342531A | 1967-09-19 | |||
| US20080309148A1 | 2008-12-18 | |||
| EP0819208A1 | 1998-01-21 | |||
| US3932952A | 1976-01-20 |
Attorney, Agent or Firm:
HAMMARSJÖ, Joakim (Sandviken, SE)
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