CA1087164A - Trepan de forage rotatif et methode de montage connexe - Google Patents

Trepan de forage rotatif et methode de montage connexe

Info

Publication number
CA1087164A
CA1087164A CA312,974A CA312974A CA1087164A CA 1087164 A CA1087164 A CA 1087164A CA 312974 A CA312974 A CA 312974A CA 1087164 A CA1087164 A CA 1087164A
Authority
CA
Canada
Prior art keywords
bearing
cutter
spindle
drill
cavity
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
CA312,974A
Other languages
English (en)
Inventor
William A. Morris
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA312,974A priority Critical patent/CA1087164A/fr
Application granted granted Critical
Publication of CA1087164A publication Critical patent/CA1087164A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA312,974A 1978-10-10 1978-10-10 Trepan de forage rotatif et methode de montage connexe Expired CA1087164A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA312,974A CA1087164A (fr) 1978-10-10 1978-10-10 Trepan de forage rotatif et methode de montage connexe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA312,974A CA1087164A (fr) 1978-10-10 1978-10-10 Trepan de forage rotatif et methode de montage connexe

Publications (1)

Publication Number Publication Date
CA1087164A true CA1087164A (fr) 1980-10-07

Family

ID=4112575

Family Applications (1)

Application Number Title Priority Date Filing Date
CA312,974A Expired CA1087164A (fr) 1978-10-10 1978-10-10 Trepan de forage rotatif et methode de montage connexe

Country Status (1)

Country Link
CA (1) CA1087164A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186267A (en) * 1990-02-14 1993-02-16 Western Rock Bit Company Limited Journal bearing type rock bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186267A (en) * 1990-02-14 1993-02-16 Western Rock Bit Company Limited Journal bearing type rock bit

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Legal Events

Date Code Title Description
MKEX Expiry