CA1238897A - Trepans a serre-cone - Google Patents

Trepans a serre-cone

Info

Publication number
CA1238897A
CA1238897A CA000534538A CA534538A CA1238897A CA 1238897 A CA1238897 A CA 1238897A CA 000534538 A CA000534538 A CA 000534538A CA 534538 A CA534538 A CA 534538A CA 1238897 A CA1238897 A CA 1238897A
Authority
CA
Canada
Prior art keywords
cone
bearing
recess
chamber
drill bit
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
CA000534538A
Other languages
English (en)
Inventor
Bob Higdon
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 CA000534538A priority Critical patent/CA1238897A/fr
Application granted granted Critical
Publication of CA1238897A publication Critical patent/CA1238897A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000534538A 1987-04-13 1987-04-13 Trepans a serre-cone Expired CA1238897A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000534538A CA1238897A (fr) 1987-04-13 1987-04-13 Trepans a serre-cone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000534538A CA1238897A (fr) 1987-04-13 1987-04-13 Trepans a serre-cone

Publications (1)

Publication Number Publication Date
CA1238897A true CA1238897A (fr) 1988-07-05

Family

ID=4135419

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000534538A Expired CA1238897A (fr) 1987-04-13 1987-04-13 Trepans a serre-cone

Country Status (1)

Country Link
CA (1) CA1238897A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109822268A (zh) * 2019-03-28 2019-05-31 南昌大学 一种用于圆锥与球贯交焊接的机器人装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109822268A (zh) * 2019-03-28 2019-05-31 南昌大学 一种用于圆锥与球贯交焊接的机器人装置

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Legal Events

Date Code Title Description
MKEX Expiry