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Class Information
Number: 405/259.4
Name: Hydraulic and earth engineering > Earth treatment or control > Rock or earth bolt or anchor > Bolt having wedge expander
Description: Subject matter comprising a split shank for accommodating a wedge to expand the shank portion as the bolt is driven into a hole in an earthen formation.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8690484 Sheathed cable Apr. 8, 2014
8596923 System and method for mine roof counter bore and cable bolt head securement therein Dec. 3, 2013
8523494 Expansion shell assembly Sep. 3, 2013
8485758 Yieldable cone bolt and method of manufacturing same Jul. 16, 2013
8403600 Drilling tool, a self-drilling rock bolt, a drill bit, an anchoring device for a self-drilling rock bolt, a shaft for a drilling tool and an end coupling for a drilling tool Mar. 26, 2013
8282318 Roof bolt anchor with camming element Oct. 9, 2012
8277149 Tensionable cable bolt with crimped shaft Oct. 2, 2012
8251617 Rock anchor cable Aug. 28, 2012
8215875 Bolt anchor Jul. 10, 2012
8146297 Rapid locking and unlocking device for an attachment plate for a swimming pool shelter roof element Apr. 3, 2012
8137032 Anchor with grout jacket Mar. 20, 2012
8087850 Rock bolt Jan. 3, 2012
8061935 Rock bolt and an anchoring device Nov. 22, 2011
8052353 System and method for mine roof counter bore and cable bolt head securement therein Nov. 8, 2011
7959379 Bolt anchor Jun. 14, 2011
7927042 Elongate element tensioning member Apr. 19, 2011
7896580 Self drilling rock bolt Mar. 1, 2011
7874380 Method and device for drilling, particularly percussion or rotary percussion drilling, a hole in soil or rock material Jan. 25, 2011
7722295 Expansion shell assembly May. 25, 2010
7374370 Rock bolt anchor having concurrent chemical and mechanical anchoring means and method for using the same May. 20, 2008
7296950 Point anchor coated mine roof bolt Nov. 20, 2007
7179020 Mine roof bolt anchoring system and method Feb. 20, 2007
7147404 Elongate element tensioning member Dec. 12, 2006
7073981 Rock stabilizer Jul. 11, 2006
7073982 Point anchor coated mine roof bolt Jul. 11, 2006
7044688 Roof bolts for use in mines, a method for their production and method for their installation May. 16, 2006
6994496 Roof bolts for use in mines, a method for their production and a method for their installation Feb. 7, 2006
6986623 Method and apparatus for anchoring a mine roof bolt Jan. 17, 2006
6984091 Yielding rock bolt Jan. 10, 2006
6932543 Wedge assembly and internal anchorage using the same Aug. 23, 2005
6929424 Rock bolt and method of use Aug. 16, 2005
6742966 Expansion shell assembly Jun. 1, 2004
6626610 Cable bolt apparatus and method of installation for mines Sep. 30, 2003
6599059 Three-prong shell Jul. 29, 2003
6533503 Mortar composition, curable by frontal polymerization, and a method for fastening tie bars Mar. 18, 2003
6474910 Rockbolt assembly Nov. 5, 2002
6457910 Tubular anchor Oct. 1, 2002
6146055 Mine roof bolt anchor Nov. 14, 2000
5885031 Mine roof bolt anchor Mar. 23, 1999
RE36019 Roof control system Dec. 29, 1998
5743061 Wall anchor Apr. 28, 1998
5647694 Mine roof support apparatus and method Jul. 15, 1997
5599140 Mine roof support system including an expansion anchor with means assisting resin component mixing and method of installation thereof Feb. 4, 1997
5596854 Post-tensioning anchor head assembly Jan. 28, 1997
5556233 Rock anchor assembly Sep. 17, 1996
5531545 Cable bolt structure and method Jul. 2, 1996
5525013 Cable bolt structure and related components Jun. 11, 1996
5501551 Mine roof expansion anchor, expansible shell element used therein and method of installation Mar. 26, 1996
5375946 Mine roof support apparatus and method Dec. 27, 1994
5352066 Mine roof/bolt anchor assembly and method of installation thereof Oct. 4, 1994

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