CA1195520A - Raccord pour tiges de forage - Google Patents

Raccord pour tiges de forage

Info

Publication number
CA1195520A
CA1195520A CA000411082A CA411082A CA1195520A CA 1195520 A CA1195520 A CA 1195520A CA 000411082 A CA000411082 A CA 000411082A CA 411082 A CA411082 A CA 411082A CA 1195520 A CA1195520 A CA 1195520A
Authority
CA
Canada
Prior art keywords
drill steel
steel section
improvement
drill
stress relief
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
CA000411082A
Other languages
English (en)
Inventor
Edward A. Bailey
James F. Ordway
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing Co
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 Joy Manufacturing Co filed Critical Joy Manufacturing Co
Priority to CA000411082A priority Critical patent/CA1195520A/fr
Application granted granted Critical
Publication of CA1195520A publication Critical patent/CA1195520A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000411082A 1982-09-09 1982-09-09 Raccord pour tiges de forage Expired CA1195520A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000411082A CA1195520A (fr) 1982-09-09 1982-09-09 Raccord pour tiges de forage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000411082A CA1195520A (fr) 1982-09-09 1982-09-09 Raccord pour tiges de forage

Publications (1)

Publication Number Publication Date
CA1195520A true CA1195520A (fr) 1985-10-22

Family

ID=4123553

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000411082A Expired CA1195520A (fr) 1982-09-09 1982-09-09 Raccord pour tiges de forage

Country Status (1)

Country Link
CA (1) CA1195520A (fr)

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Legal Events

Date Code Title Description
MKEX Expiry