EP0462821A3 - Swivel assembly for a pneumatic underground piercing tool - Google Patents

Swivel assembly for a pneumatic underground piercing tool Download PDF

Info

Publication number
EP0462821A3
EP0462821A3 EP19910305550 EP91305550A EP0462821A3 EP 0462821 A3 EP0462821 A3 EP 0462821A3 EP 19910305550 EP19910305550 EP 19910305550 EP 91305550 A EP91305550 A EP 91305550A EP 0462821 A3 EP0462821 A3 EP 0462821A3
Authority
EP
European Patent Office
Prior art keywords
swivel assembly
piercing tool
underground piercing
pneumatic
pneumatic underground
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.)
Withdrawn
Application number
EP19910305550
Other versions
EP0462821A2 (en
Inventor
Michael Baron
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.)
Allied Steel and Tractor Products Inc
Original Assignee
Allied Steel and Tractor Products 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
Application filed by Allied Steel and Tractor Products Inc filed Critical Allied Steel and Tractor Products Inc
Publication of EP0462821A2 publication Critical patent/EP0462821A2/en
Publication of EP0462821A3 publication Critical patent/EP0462821A3/en
Withdrawn legal-status Critical Current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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole

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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP19910305550 1990-06-20 1991-06-19 Swivel assembly for a pneumatic underground piercing tool Withdrawn EP0462821A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54105490A 1990-06-20 1990-06-20
US541054 1990-06-20

Publications (2)

Publication Number Publication Date
EP0462821A2 EP0462821A2 (en) 1991-12-27
EP0462821A3 true EP0462821A3 (en) 1993-01-27

Family

ID=24158005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910305550 Withdrawn EP0462821A3 (en) 1990-06-20 1991-06-19 Swivel assembly for a pneumatic underground piercing tool

Country Status (1)

Country Link
EP (1) EP0462821A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852325B (en) * 2020-07-28 2022-12-27 浙江开山钎具有限公司 Down-the-hole hammer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170167A (en) * 1967-03-14 1969-11-12 Inst Gornogo Dela Sibirskogo O Percussion Ground-Burrowing Device.
GB1530857A (en) * 1977-06-23 1978-11-01 Inst Gor Dela Sibir Otdel An S Reversible pneumatic percussive device
US4662457A (en) * 1984-10-19 1987-05-05 Allied Steel & Tractor Products, Inc. Reversible underground piercing device
EP0224859A1 (en) * 1985-11-27 1987-06-10 Oklahoma Airrow, Inc. Air driven impact operated ground piercing tool
EP0301287A2 (en) * 1987-07-25 1989-02-01 Paul Schmidt Boring ram

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170167A (en) * 1967-03-14 1969-11-12 Inst Gornogo Dela Sibirskogo O Percussion Ground-Burrowing Device.
GB1530857A (en) * 1977-06-23 1978-11-01 Inst Gor Dela Sibir Otdel An S Reversible pneumatic percussive device
US4662457A (en) * 1984-10-19 1987-05-05 Allied Steel & Tractor Products, Inc. Reversible underground piercing device
EP0224859A1 (en) * 1985-11-27 1987-06-10 Oklahoma Airrow, Inc. Air driven impact operated ground piercing tool
EP0301287A2 (en) * 1987-07-25 1989-02-01 Paul Schmidt Boring ram

Also Published As

Publication number Publication date
EP0462821A2 (en) 1991-12-27

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