CA1057277A - Tige d'entrainement d'outil a forer, de type remplacable - Google Patents

Tige d'entrainement d'outil a forer, de type remplacable

Info

Publication number
CA1057277A
CA1057277A CA313,893A CA313893A CA1057277A CA 1057277 A CA1057277 A CA 1057277A CA 313893 A CA313893 A CA 313893A CA 1057277 A CA1057277 A CA 1057277A
Authority
CA
Canada
Prior art keywords
stem
drill
plate
torque
shank portion
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
CA313,893A
Other languages
English (en)
Inventor
Robert E. Allison
Robert L. Dixon
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.)
Smith International Inc
Original Assignee
Smith International 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 US05/593,839 external-priority patent/US4007799A/en
Application filed by Smith International Inc filed Critical Smith International Inc
Priority to CA313,893A priority Critical patent/CA1057277A/fr
Application granted granted Critical
Publication of CA1057277A publication Critical patent/CA1057277A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA313,893A 1975-07-07 1978-10-19 Tige d'entrainement d'outil a forer, de type remplacable Expired CA1057277A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA313,893A CA1057277A (fr) 1975-07-07 1978-10-19 Tige d'entrainement d'outil a forer, de type remplacable

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/593,839 US4007799A (en) 1975-07-07 1975-07-07 Raise drill with replaceable stem
CA255,973A CA1057275A (fr) 1975-07-07 1976-06-29 Foreuse avec maitresse-tige remplacable, et maitresse-tige de rechange
CA313,893A CA1057277A (fr) 1975-07-07 1978-10-19 Tige d'entrainement d'outil a forer, de type remplacable

Publications (1)

Publication Number Publication Date
CA1057277A true CA1057277A (fr) 1979-06-26

Family

ID=27164537

Family Applications (1)

Application Number Title Priority Date Filing Date
CA313,893A Expired CA1057277A (fr) 1975-07-07 1978-10-19 Tige d'entrainement d'outil a forer, de type remplacable

Country Status (1)

Country Link
CA (1) CA1057277A (fr)

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