AU2787163A - Improvement in deep drills having an eccentric bit - Google Patents

Improvement in deep drills having an eccentric bit

Info

Publication number
AU2787163A
AU2787163A AU27871/63A AU2787163A AU2787163A AU 2787163 A AU2787163 A AU 2787163A AU 27871/63 A AU27871/63 A AU 27871/63A AU 2787163 A AU2787163 A AU 2787163A AU 2787163 A AU2787163 A AU 2787163A
Authority
AU
Australia
Prior art keywords
improvement
eccentric bit
drills
deep
deep 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.)
Expired
Application number
AU27871/63A
Other versions
AU268032B2 (en
Inventor
JAN SIGURD VALDEMAR ROOS and KARL GUNNAR LANDBECK ERIK OVE HEIDAR EKBLOM
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.)
Skanska AB
Original Assignee
Skanska Cementgjuteriet AB
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 Skanska Cementgjuteriet AB filed Critical Skanska Cementgjuteriet AB
Application granted granted Critical
Publication of AU268032B2 publication Critical patent/AU268032B2/en
Publication of AU2787163A publication Critical patent/AU2787163A/en
Expired legal-status Critical Current

Links

AU27871/63A 1962-03-01 1963-02-28 Improvement in deep drills having an eccentric bit Expired AU268032B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SESE2298/62 1962-03-01

Publications (2)

Publication Number Publication Date
AU268032B2 AU268032B2 (en) 1964-09-03
AU2787163A true AU2787163A (en) 1964-09-03

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU567582B2 (en) * 1983-09-23 1987-11-26 Persson, J.E. Hammer drill arrangement with drill bit guide non-rotably mounted to energy transfer means.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU567582B2 (en) * 1983-09-23 1987-11-26 Persson, J.E. Hammer drill arrangement with drill bit guide non-rotably mounted to energy transfer means.

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