CA1116161A - Trepans de forage a elements de coupe au diamant - Google Patents

Trepans de forage a elements de coupe au diamant

Info

Publication number
CA1116161A
CA1116161A CA372,807A CA372807A CA1116161A CA 1116161 A CA1116161 A CA 1116161A CA 372807 A CA372807 A CA 372807A CA 1116161 A CA1116161 A CA 1116161A
Authority
CA
Canada
Prior art keywords
cavities
bit
face
preformed
cutters
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
CA372,807A
Other languages
English (en)
Inventor
David S. Rowley
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.)
Norton Christensen Inc
Original Assignee
Christensen 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 CA338,830A external-priority patent/CA1106832A/fr
Application filed by Christensen Inc filed Critical Christensen Inc
Priority to CA372,807A priority Critical patent/CA1116161A/fr
Application granted granted Critical
Publication of CA1116161A publication Critical patent/CA1116161A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
CA372,807A 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant Expired CA1116161A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA372,807A CA1116161A (fr) 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA338,830A CA1106832A (fr) 1979-10-31 1979-10-31 Trepan de forage a mises au diamant
CA372,807A CA1116161A (fr) 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant

Publications (1)

Publication Number Publication Date
CA1116161A true CA1116161A (fr) 1982-01-12

Family

ID=25668986

Family Applications (1)

Application Number Title Priority Date Filing Date
CA372,807A Expired CA1116161A (fr) 1979-10-31 1981-03-11 Trepans de forage a elements de coupe au diamant

Country Status (1)

Country Link
CA (1) CA1116161A (fr)

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Legal Events

Date Code Title Description
MKEX Expiry