Washer assembly for an inflatable friction bolt

Details for Australian Patent Application No. 2009201251 (hide)

Owner DYWIDAG - Systems International Pty Limited

Inventors Hunter, Rhys James; Evans, David William

Agent Spruson & Ferguson

Pub. Number AU-A-2009201251

Priority 2008901563 01.04.08 AU

Filing date 31 March 2009

Wipo publication date 15 October 2009

International Classifications

F16B 31/06 (2006.01) Screwed connections specially modified in view of tensile load

E21D 21/00 (2006.01) Anchoring-bolts for roof, floor, or shaft-lining protection

F16B 13/06 (2006.01) Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose - combined with expanding sleeve

F16B 31/02 (2006.01) Screwed connections specially modified in view of tensile load

Event Publications

23 April 2009 Complete Application Filed

  Priority application(s): 2008901563 01.04.08 AU

15 October 2009 Application Open to Public Inspection

  Published as AU-A-2009201251

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