CA1292220C - Outil de forage avec palier en deux pieces et garniture radials rigide - Google Patents

Outil de forage avec palier en deux pieces et garniture radials rigide

Info

Publication number
CA1292220C
CA1292220C CA000559193A CA559193A CA1292220C CA 1292220 C CA1292220 C CA 1292220C CA 000559193 A CA000559193 A CA 000559193A CA 559193 A CA559193 A CA 559193A CA 1292220 C CA1292220 C CA 1292220C
Authority
CA
Canada
Prior art keywords
cutter
bearing
seal
shaft
movement
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 - Fee Related
Application number
CA000559193A
Other languages
English (en)
Inventor
Bruce H. Burr
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.)
Hughes Tool Co
Original Assignee
Hughes 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
Priority claimed from US07/023,170 external-priority patent/US4753303A/en
Application filed by Hughes Tool Co filed Critical Hughes Tool Co
Application granted granted Critical
Publication of CA1292220C publication Critical patent/CA1292220C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000559193A 1987-03-09 1988-02-18 Outil de forage avec palier en deux pieces et garniture radials rigide Expired - Fee Related CA1292220C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/023,170 US4753303A (en) 1983-10-17 1987-03-09 Earth boring bit with two piece bearing and rigid face seal assembly
US023,170 1987-03-09

Publications (1)

Publication Number Publication Date
CA1292220C true CA1292220C (fr) 1991-11-19

Family

ID=21813499

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000559193A Expired - Fee Related CA1292220C (fr) 1987-03-09 1988-02-18 Outil de forage avec palier en deux pieces et garniture radials rigide

Country Status (3)

Country Link
CA (1) CA1292220C (fr)
IT (1) IT1216038B (fr)
MX (1) MX166269B (fr)

Also Published As

Publication number Publication date
IT1216038B (it) 1990-02-22
MX166269B (es) 1992-12-28
IT8819706A0 (it) 1988-03-09

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Legal Events

Date Code Title Description
MKLA Lapsed