A method for applying an anti-corrosion coating to especially corrosion exposed parts in rock drill equipment

Details for Australian Patent Application No. 2003212764 (hide)

Owner Atlas Copco Secoroc AB

Inventors Stenberg, Goran

Agent Freehills

Pub. Number AU-B-2003212764

PCT Number PCT/SE03/00432

PCT Pub. Number WO2003/078788

Priority 0200874-6 20.03.02 SE

Filing date 14 March 2003

Wipo publication date 29 September 2003

Acceptance publication date 6 March 2008

International Classifications

E21B 1/38 (2006.01) Methods or apparatus for drilling

C23C 22/12 (2006.01) Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

C23C 22/18 (2006.01) Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

C23C 22/83 (2006.01) Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

E21B 17/00 (2006.01) Drilling rods or pipes

E21B 21/00 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

Event Publications

24 July 2003 Complete Application Filed

  Priority application(s): 0200874-6 20.03.02 SE

6 November 2003 Application Open to Public Inspection

  Published as AU-B-2003212764

6 March 2008 Application Accepted

  Published as AU-B-2003212764

3 July 2008 Standard Patent Sealed

8 October 2009 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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