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CA900951A - Expansible rotary drill bit with hydraulic lock - Google Patents

Expansible rotary drill bit with hydraulic lock

Info

Publication number
CA900951A
CA900951A CA900951A CA900951DA CA900951A CA 900951 A CA900951 A CA 900951A CA 900951 A CA900951 A CA 900951A CA 900951D A CA900951D A CA 900951DA CA 900951 A CA900951 A CA 900951A
Authority
CA
Canada
Prior art keywords
drill bit
rotary drill
hydraulic lock
expansible rotary
expansible
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
CA900951A
Inventor
Archer W. Kammerer, Jr.
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.)
Rotary Oil Tool Co
Original Assignee
Rotary Oil Tool Co
Publication date
Application granted granted Critical
Publication of CA900951A publication Critical patent/CA900951A/en
Expired legal-status Critical Current

Links

CA900951A Expansible rotary drill bit with hydraulic lock Expired CA900951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA900951T

Publications (1)

Publication Number Publication Date
CA900951A true CA900951A (en) 1972-05-23

Family

ID=36408906

Family Applications (1)

Application Number Title Priority Date Filing Date
CA900951A Expired CA900951A (en) Expansible rotary drill bit with hydraulic lock

Country Status (1)

Country Link
CA (1) CA900951A (en)

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