CA1227789A - Trepan de forage a molettes et garniture d'etancheite texturisee - Google Patents

Trepan de forage a molettes et garniture d'etancheite texturisee

Info

Publication number
CA1227789A
CA1227789A CA000491388A CA491388A CA1227789A CA 1227789 A CA1227789 A CA 1227789A CA 000491388 A CA000491388 A CA 000491388A CA 491388 A CA491388 A CA 491388A CA 1227789 A CA1227789 A CA 1227789A
Authority
CA
Canada
Prior art keywords
bearing
seal member
lubricant
bit
roller cutter
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
CA000491388A
Other languages
English (en)
Inventor
Robert J. Kotch
Jeffery E. Daly
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.)
ReedHycalog UK Ltd
Reed Tool Co
Original Assignee
Reed Tool 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 Reed Tool Co filed Critical Reed Tool Co
Priority to CA000491388A priority Critical patent/CA1227789A/fr
Application granted granted Critical
Publication of CA1227789A publication Critical patent/CA1227789A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000491388A 1985-09-24 1985-09-24 Trepan de forage a molettes et garniture d'etancheite texturisee Expired CA1227789A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000491388A CA1227789A (fr) 1985-09-24 1985-09-24 Trepan de forage a molettes et garniture d'etancheite texturisee

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000491388A CA1227789A (fr) 1985-09-24 1985-09-24 Trepan de forage a molettes et garniture d'etancheite texturisee

Publications (1)

Publication Number Publication Date
CA1227789A true CA1227789A (fr) 1987-10-06

Family

ID=4131451

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000491388A Expired CA1227789A (fr) 1985-09-24 1985-09-24 Trepan de forage a molettes et garniture d'etancheite texturisee

Country Status (1)

Country Link
CA (1) CA1227789A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016719A (en) * 1990-01-24 1991-05-21 Western Rock Bit Company Limited Rotary cone type rock bits
US5186267A (en) * 1990-02-14 1993-02-16 Western Rock Bit Company Limited Journal bearing type rock bit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016719A (en) * 1990-01-24 1991-05-21 Western Rock Bit Company Limited Rotary cone type rock bits
US5186267A (en) * 1990-02-14 1993-02-16 Western Rock Bit Company Limited Journal bearing type rock bit

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Legal Events

Date Code Title Description
MKEX Expiry