CA910293A - Water feed legs - Google Patents

Water feed legs

Info

Publication number
CA910293A
CA910293A CA910293A CA910293DA CA910293A CA 910293 A CA910293 A CA 910293A CA 910293 A CA910293 A CA 910293A CA 910293D A CA910293D A CA 910293DA CA 910293 A CA910293 A CA 910293A
Authority
CA
Canada
Prior art keywords
water feed
feed legs
legs
water
feed
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
CA910293A
Inventor
E. Gordon John
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 (CANADA) Ltd
Original Assignee
JOY MANUFACTURING Co (CANADA) Ltd
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 (CANADA) Ltd filed Critical JOY MANUFACTURING Co (CANADA) Ltd
Application granted granted Critical
Publication of CA910293A publication Critical patent/CA910293A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
CA910293A 1969-09-10 1969-09-10 Water feed legs Expired CA910293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA61683 1969-09-10

Publications (1)

Publication Number Publication Date
CA910293A true CA910293A (en) 1972-09-19

Family

ID=4085660

Family Applications (1)

Application Number Title Priority Date Filing Date
CA910293A Expired CA910293A (en) 1969-09-10 1969-09-10 Water feed legs

Country Status (1)

Country Link
CA (1) CA910293A (en)

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