AU478896B2 - Rotary drive mechanism for drill rig - Google Patents

Rotary drive mechanism for drill rig

Info

Publication number
AU478896B2
AU478896B2 AU65266/74A AU6526674A AU478896B2 AU 478896 B2 AU478896 B2 AU 478896B2 AU 65266/74 A AU65266/74 A AU 65266/74A AU 6526674 A AU6526674 A AU 6526674A AU 478896 B2 AU478896 B2 AU 478896B2
Authority
AU
Australia
Prior art keywords
drive mechanism
rotary drive
drill rig
rig
drill
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.)
Expired
Application number
AU65266/74A
Other versions
AU6526674A (en
Inventor
WILLIAM HISEY and LARRY ELMER HALGAS ROBERT
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.)
Gardner Denver Inc
Original Assignee
Gardner Denver 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
Priority claimed from US379664A external-priority patent/US3874196A/en
Application filed by Gardner Denver Inc filed Critical Gardner Denver Inc
Application granted granted Critical
Publication of AU478896B2 publication Critical patent/AU478896B2/en
Publication of AU6526674A publication Critical patent/AU6526674A/en
Expired legal-status Critical Current

Links

AU65266/74A 1973-07-16 1974-02-06 Rotary drive mechanism for drill rig Expired AU478896B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US379664A US3874196A (en) 1973-07-16 1973-07-16 Rotary drive and joint breakout mechanism
USUS379664 1973-07-16

Publications (2)

Publication Number Publication Date
AU478896B2 true AU478896B2 (en) 1975-08-07
AU6526674A AU6526674A (en) 1975-08-07

Family

ID=

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