AU1478995A - Automatic leveling system for blasthole drills - Google Patents

Automatic leveling system for blasthole drills

Info

Publication number
AU1478995A
AU1478995A AU14789/95A AU1478995A AU1478995A AU 1478995 A AU1478995 A AU 1478995A AU 14789/95 A AU14789/95 A AU 14789/95A AU 1478995 A AU1478995 A AU 1478995A AU 1478995 A AU1478995 A AU 1478995A
Authority
AU
Australia
Prior art keywords
leveling system
automatic leveling
blasthole drills
blasthole
drills
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.)
Granted
Application number
AU14789/95A
Other versions
AU692825B2 (en
Inventor
Timothy R. Kerrigan
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.)
Harnischfeger Technologies Inc
Original Assignee
Harnischfeger Technologies Inc
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 Harnischfeger Technologies Inc filed Critical Harnischfeger Technologies Inc
Publication of AU1478995A publication Critical patent/AU1478995A/en
Application granted granted Critical
Publication of AU692825B2 publication Critical patent/AU692825B2/en
Assigned to HARNISCHFEGER TECHNOLOGIES, INC. reassignment HARNISCHFEGER TECHNOLOGIES, INC. Alteration of Name(s) in Register under S187 Assignors: HARNISCHFEGER CORPORATION
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU14789/95A 1994-07-14 1995-03-09 Automatic leveling system for blasthole drills Ceased AU692825B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27510294A 1994-07-14 1994-07-14
US275102 1994-07-14

Publications (2)

Publication Number Publication Date
AU1478995A true AU1478995A (en) 1996-01-25
AU692825B2 AU692825B2 (en) 1998-06-18

Family

ID=23050877

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14789/95A Ceased AU692825B2 (en) 1994-07-14 1995-03-09 Automatic leveling system for blasthole drills

Country Status (2)

Country Link
AU (1) AU692825B2 (en)
ZA (1) ZA951888B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890683A (en) * 1952-02-06 1959-06-16 John S Pilch Fluid actuated control valve means for fluid motors
US4303130A (en) * 1977-03-31 1981-12-01 Boa Drilling Equipment, Inc. All terrain drill unit
US4359931A (en) * 1981-01-19 1982-11-23 The Warner & Swasey Company Regenerative and anticavitation hydraulic system for an excavator

Also Published As

Publication number Publication date
AU692825B2 (en) 1998-06-18
ZA951888B (en) 1996-01-09

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Legal Events

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