Processing

Please wait...

Settings

Settings

Goto Application

1. AU2014203653 - YIELDING BOLT AND ASSEMBLY

Office
Australia
Application Number 2014203653
Application Date 03.07.2014
Publication Number 2014203653
Publication Date 17.07.2014
Publication Kind B2
IPC
E21D 20/02
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
20Setting anchoring-bolts
02with provisions for grouting
Applicants FCI Holdings Delaware, Inc.
Inventors Lamothe, Marc W.
Oldsen, John G.
Wu, Yaokun
Agents Griffith Hack
Priority Data 61/238,849 01.09.2009 US
Title
(EN) YIELDING BOLT AND ASSEMBLY
Abstract
(EN) A MINE ROOF BOLT INCLUDES AN ELONGATED ROD AND A POLYMER COATING LAYER. THE ELONGATED ROD HAS A FIRST END AND A SECOND END WITH A PROTRUDING PORTION EXTENDING RADIALLY OUTWARD FROM THE ELONGATED ROD. THE POLYMER COATING LAYER COVERS AT LEAST A PORTION OF THE ELONGATED ROD BETWEEN THE FIRST AND SECOND ENDS. THE ELONGATED ROD IS MOVABLE RELATIVE TO THE POLYMER COATING LAYER IN AN AXIAL DIRECTION. THE ELONGATED ROD HAS A FIRST POSITION WHERE THE ELONGATED ROD HAS A PREDETERMINED AXIAL POSITION RELATIVE TO THE POLYMER COATING LAYER AND A SECOND POSITION WHERE THE ELONGATED ROD HAS A DISPLACED AXIAL POSITION RELATIVE TO THE FIRST POSITION.