AU642811B2 - Mine roof expansion anchor - Google Patents

Mine roof expansion anchor

Info

Publication number
AU642811B2
AU642811B2 AU11295/92A AU1129592A AU642811B2 AU 642811 B2 AU642811 B2 AU 642811B2 AU 11295/92 A AU11295/92 A AU 11295/92A AU 1129592 A AU1129592 A AU 1129592A AU 642811 B2 AU642811 B2 AU 642811B2
Authority
AU
Australia
Prior art keywords
expansion anchor
mine roof
roof expansion
mine
anchor
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU11295/92A
Other versions
AU1129592A (en
Inventor
Carl A. Clark
Raymond L. Wright
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastern Co
Original Assignee
Eastern Co
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 Eastern Co filed Critical Eastern Co
Priority to AU11295/92A priority Critical patent/AU642811B2/en
Publication of AU1129592A publication Critical patent/AU1129592A/en
Application granted granted Critical
Publication of AU642811B2 publication Critical patent/AU642811B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU11295/92A 1992-02-27 1992-02-27 Mine roof expansion anchor Ceased AU642811B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11295/92A AU642811B2 (en) 1992-02-27 1992-02-27 Mine roof expansion anchor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU11295/92A AU642811B2 (en) 1992-02-27 1992-02-27 Mine roof expansion anchor

Publications (2)

Publication Number Publication Date
AU1129592A AU1129592A (en) 1993-09-02
AU642811B2 true AU642811B2 (en) 1993-10-28

Family

ID=3702068

Family Applications (1)

Application Number Title Priority Date Filing Date
AU11295/92A Ceased AU642811B2 (en) 1992-02-27 1992-02-27 Mine roof expansion anchor

Country Status (1)

Country Link
AU (1) AU642811B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775850A (en) * 1993-08-12 1998-07-07 The Broken Hill Proprietary Company Limited Rock bolt
DE29902889U1 (en) * 1998-02-19 1999-05-06 Dita Products Proprietary Ltd., Booysens Rock or wall anchors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315557A (en) * 1965-06-23 1967-04-25 Eastern Co Expansion shell assembly
US4278006A (en) * 1978-05-05 1981-07-14 The Eastern Company Expansion shell assembly
US4861198A (en) * 1988-11-22 1989-08-29 Jennmar Corporation Expansion assembly for mine roof bolts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315557A (en) * 1965-06-23 1967-04-25 Eastern Co Expansion shell assembly
US4278006A (en) * 1978-05-05 1981-07-14 The Eastern Company Expansion shell assembly
US4861198A (en) * 1988-11-22 1989-08-29 Jennmar Corporation Expansion assembly for mine roof bolts

Also Published As

Publication number Publication date
AU1129592A (en) 1993-09-02

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired