Title:
PICK ASSEMBLY, BIT ASSEMBLY AND DEGRADATION TOOL
Document Type and Number:
WIPO Patent Application WO/2014/033227
Kind Code:
A3
Abstract:
A pick assembly is provided, comprising a bit assembly and a holder assembly; the bit assembly comprising a bit support body, a fastener mechanism and a deflectable member, cooperatively configured such the deflectable member can be deflected responsive to the progressive coupling of the bit support body to the fastener mechanism. The holder assembly comprises a holder body and is configured for accommodating and retaining the bit assembly by interference means. The holder assembly and bit assembly are cooperatively configured such that the retention of the bit assembly by the holder assembly by interference means can be progressively increased responsive to the progressive coupling of the bit support body with the fastener mechanism when the bit assembly is accommodated by the holder assembly, operative to prevent substantial movement of the bit support body relative to the holder body in use.
Inventors:
RIES BERND HEINRICH (DE)
LACHMANN FRANK FRIEDRICH (DE)
FRIES ROBERT (ZA)
LACHMANN FRANK FRIEDRICH (DE)
FRIES ROBERT (ZA)
Application Number:
PCT/EP2013/067929
Publication Date:
October 09, 2014
Filing Date:
August 29, 2013
Export Citation:
Assignee:
ELEMENT SIX GMBH (DE)
ELEMENT SIX ABRASIVES SA (LU)
ELEMENT SIX ABRASIVES SA (LU)
International Classes:
E21C35/193
Domestic Patent References:
| WO2012113707A2 | 2012-08-30 |
Foreign References:
| US4299424A | 1981-11-10 | |||
| GB2492646A | 2013-01-09 | |||
| US5992405A | 1999-11-30 |
Attorney, Agent or Firm:
SMALLMAN, Clint, Guy (Communications HouseSouth Street,Staines-upon-Thames, Middlesex TW18 4PR, GB)
Download PDF: