ZA200102762B - Improved three-prong shell. - Google Patents

Improved three-prong shell.

Info

Publication number
ZA200102762B
ZA200102762B ZA200102762A ZA200102762A ZA200102762B ZA 200102762 B ZA200102762 B ZA 200102762B ZA 200102762 A ZA200102762 A ZA 200102762A ZA 200102762 A ZA200102762 A ZA 200102762A ZA 200102762 B ZA200102762 B ZA 200102762B
Authority
ZA
South Africa
Prior art keywords
improved
prong
shell
prong shell
Prior art date
Application number
ZA200102762A
Other languages
English (en)
Inventor
Frank Calandra Jr
John C Stankus
Brandon Demrey
Jack R Eaton
Larry Boozer
Original Assignee
Jennmar Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jennmar Corp filed Critical Jennmar Corp
Publication of ZA200102762B publication Critical patent/ZA200102762B/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Dowels (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
ZA200102762A 2000-04-04 2001-04-04 Improved three-prong shell. ZA200102762B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19452500P 2000-04-04 2000-04-04

Publications (1)

Publication Number Publication Date
ZA200102762B true ZA200102762B (en) 2002-11-04

Family

ID=22717932

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200102762A ZA200102762B (en) 2000-04-04 2001-04-04 Improved three-prong shell.

Country Status (5)

Country Link
US (1) US6599059B2 (xx)
AU (1) AU742400B2 (xx)
CA (1) CA2342707C (xx)
DE (1) DE10116447A1 (xx)
ZA (1) ZA200102762B (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6945728B2 (en) * 2002-06-07 2005-09-20 Orchid Automation, Llc Mechanical fastener
AU2004284121A1 (en) * 2003-10-27 2005-05-06 Marcellin Bruneau Anchor device with an elastic expansion sleeve
US7775754B2 (en) * 2005-03-15 2010-08-17 Fci Holdings Delaware, Inc. Torque nut having an injection molded breakaway insert
US7342175B2 (en) * 2005-09-19 2008-03-11 Fci Americas Technology, Inc. Electrical connector
US7385138B2 (en) * 2005-09-19 2008-06-10 Fci Americas Technology, Inc. Electrical connector with wedges and spring
US7435144B2 (en) * 2007-01-22 2008-10-14 Fci Americas Technology, Inc. Electrical splice connector
DE102008001055A1 (de) * 2008-04-08 2009-10-15 Hilti Aktiengesellschaft Spreizdübel
US7959379B2 (en) * 2009-03-02 2011-06-14 Robertson Jr Roy Lee Bolt anchor
US8282318B2 (en) 2009-03-02 2012-10-09 Robertson Jr Roy Lee Roof bolt anchor with camming element
AT13162U1 (de) * 2012-04-12 2013-07-15 Dywidag Systems Int Gmbh Verfahren zum Bohren von Löchern in Boden- bzw. Gesteinsmaterial und zum Festlegen eines Ankers in einem Bohrloch sowie Vorrichtung hierfür
CN102877867B (zh) * 2012-09-26 2015-07-15 山东科技大学 一种新型膨胀式让压预应力注浆锚杆及其使用方法
SE539285C2 (sv) * 2013-02-07 2017-06-20 Rock Solutions North AB Bergbult
WO2015085349A1 (en) * 2013-12-12 2015-06-18 Garock Pty Ltd Ground support apparatus and method

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE268365C (xx)
CA668317A (en) 1963-08-06 Hillberg Bror Expansion bolt
DE8408639U1 (de) 1984-07-05 Hoff, Walter, 4000 Düsseldorf Spreizanker
US4011787A (en) 1975-06-20 1977-03-15 White Lewis P Mine roof bolt assembly
ZA796218B (en) * 1979-04-24 1980-11-26 H Sohnius An expansion bolt
US4337012A (en) * 1979-04-25 1982-06-29 Heinrich Sohnius Anchor bolt expansion shell
US4419805A (en) * 1980-11-21 1983-12-13 Jennmar Corporation Method for combining resin bonding and mechanical anchoring of a bolt in a rock formation
US4516885A (en) * 1980-11-21 1985-05-14 Jennmar Corporation Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation
US4518292A (en) * 1980-11-21 1985-05-21 Jennmar Corporation Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation
US4413930A (en) * 1980-11-21 1983-11-08 Jennmar Corporation Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation
US4437795A (en) 1981-11-02 1984-03-20 Birmingham Bolt Company Mine roof anchor assembly
US4557631A (en) * 1983-08-29 1985-12-10 Donan Jr David C Off-center rock bolt anchor and method
US4655645A (en) * 1984-12-31 1987-04-07 H&S Machine & Supply Co., Inc. Method and apparatus for anchoring roof bolts
US4764055A (en) * 1986-10-02 1988-08-16 Birmingham Bolt Company, Inc. Resin reinforced expansion anchor system
WO1989006322A1 (en) * 1988-01-08 1989-07-13 Kabushikikaisha Miyanaga Expanding sleeve of anchor bolt and method of manufacturing same
US5087160A (en) 1988-04-12 1992-02-11 American Mining Supply, Inc. Anchor bolt and expansion shell assembly
US4969778A (en) 1989-06-19 1990-11-13 Jennmar Corporation Expansion assembly for mine roof bolts utilized in small diameter bore holes
US5078547A (en) 1989-06-19 1992-01-07 Jennmar Corporation Expansion assembly for mine roof bolts
US4904123A (en) 1989-06-19 1990-02-27 Jennmar Corporation Expansion assembly for mine roof bolts utilized in small diameter bore holes
US5316414A (en) * 1993-04-14 1994-05-31 The Eastern Company Mine roof expansion anchor, tapered plug element used therein and method of installation
US5762451A (en) * 1997-02-26 1998-06-09 Jennmar Corporation Multi-piece, split bail expansion anchor
DE19707542A1 (de) 1997-02-26 1998-08-27 August Hitzbleck Soehne Gmbh Fels- oder Betonanker

Also Published As

Publication number Publication date
DE10116447A1 (de) 2001-12-06
US20020025230A1 (en) 2002-02-28
US6599059B2 (en) 2003-07-29
CA2342707C (en) 2005-11-15
AU3344701A (en) 2001-10-11
CA2342707A1 (en) 2001-10-04
AU742400B2 (en) 2002-01-03

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