CA975747A - Free breathing lubrication system for sealed bearing rock bits - Google Patents

Free breathing lubrication system for sealed bearing rock bits

Info

Publication number
CA975747A
CA975747A CA209,404A CA209404A CA975747A CA 975747 A CA975747 A CA 975747A CA 209404 A CA209404 A CA 209404A CA 975747 A CA975747 A CA 975747A
Authority
CA
Canada
Prior art keywords
lubrication system
sealed bearing
bearing rock
rock bits
free breathing
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
CA209,404A
Other versions
CA209404S (en
Inventor
William R. Bell
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries 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 CA152,362A external-priority patent/CA969532A/en
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Priority to CA209,404A priority Critical patent/CA975747A/en
Application granted granted Critical
Publication of CA975747A publication Critical patent/CA975747A/en
Expired legal-status Critical Current

Links

CA209,404A 1971-11-24 1974-09-17 Free breathing lubrication system for sealed bearing rock bits Expired CA975747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA209,404A CA975747A (en) 1971-11-24 1974-09-17 Free breathing lubrication system for sealed bearing rock bits

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20185071A 1971-11-24 1971-11-24
CA152,362A CA969532A (en) 1971-11-24 1972-09-22 Free breathing lubrication system for sealed bearing rock bits
CA209,404A CA975747A (en) 1971-11-24 1974-09-17 Free breathing lubrication system for sealed bearing rock bits

Publications (1)

Publication Number Publication Date
CA975747A true CA975747A (en) 1975-10-07

Family

ID=27162296

Family Applications (1)

Application Number Title Priority Date Filing Date
CA209,404A Expired CA975747A (en) 1971-11-24 1974-09-17 Free breathing lubrication system for sealed bearing rock bits

Country Status (1)

Country Link
CA (1) CA975747A (en)

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