IT1001892B - Combinazione di trivella a gradini e di punta da roccia - Google Patents

Combinazione di trivella a gradini e di punta da roccia

Info

Publication number
IT1001892B
IT1001892B IT31591/73A IT3159173A IT1001892B IT 1001892 B IT1001892 B IT 1001892B IT 31591/73 A IT31591/73 A IT 31591/73A IT 3159173 A IT3159173 A IT 3159173A IT 1001892 B IT1001892 B IT 1001892B
Authority
IT
Italy
Prior art keywords
combination
step drill
rock point
rock
point
Prior art date
Application number
IT31591/73A
Other languages
English (en)
Italian (it)
Original Assignee
Lee T
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 Lee T filed Critical Lee T
Application granted granted Critical
Publication of IT1001892B publication Critical patent/IT1001892B/it

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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • E21B10/633—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable
    • 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
    • E21B10/00—Drill bits
    • 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
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

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)
  • Earth Drilling (AREA)
IT31591/73A 1972-12-01 1973-11-21 Combinazione di trivella a gradini e di punta da roccia IT1001892B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00311311A US3794129A (en) 1972-12-01 1972-12-01 Step auger and rock bit combination

Publications (1)

Publication Number Publication Date
IT1001892B true IT1001892B (it) 1976-04-30

Family

ID=23206340

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31591/73A IT1001892B (it) 1972-12-01 1973-11-21 Combinazione di trivella a gradini e di punta da roccia

Country Status (7)

Country Link
US (1) US3794129A (en))
CA (1) CA992533A (en))
ES (1) ES421061A1 (en))
FR (1) FR2209039B1 (en))
GB (1) GB1433556A (en))
IT (1) IT1001892B (en))
ZA (1) ZA738875B (en))

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898895A (en) * 1974-01-14 1975-08-12 Thomas L Taylor Method of attaching teeth to an earth drilling tool
US4046207A (en) * 1976-09-01 1977-09-06 Thomas Lee Taylor Earth drilling tools
ES8102625A1 (es) * 1980-02-25 1980-12-01 Pellicer Carlos F Perfeccionamientos en las herramientas para perforar mate- rias petreas
US4380271A (en) * 1981-04-17 1983-04-19 Blue Streak Industries, Inc. Earth auger with removable cutting tooth support structure
US4917196A (en) * 1989-08-15 1990-04-17 Kennametal Inc. Excavating tooth for an earth auger
US5143163A (en) * 1991-08-29 1992-09-01 Kennametal Inc. Digging tooth
GB2348654B (en) * 1999-04-09 2003-05-28 Kvaerner Cementation Found Ltd An Auger and a Method for Enhancing the Bearing Capacity of a Pile
US7357200B2 (en) * 2005-09-29 2008-04-15 Harleman Ronald E Earth auger
US8226334B2 (en) * 2008-06-23 2012-07-24 The Boeing Company Variable diameter cutting tool
RU173373U1 (ru) * 2015-12-16 2017-08-24 Александр Алексеевич Кабашов Коронка бурильная

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594261A (en) * 1949-01-13 1952-04-22 Frederick E Henning Earth auger with spirally arranged removable cutting bits
US2610829A (en) * 1949-10-12 1952-09-16 Central Mine Equipment Company Mining drill
US2701126A (en) * 1950-08-15 1955-02-01 Austin Powder Co Auger head
US2731237A (en) * 1951-11-28 1956-01-17 Frederick E Henning Combination earth auger with rock drilling point
US3235018A (en) * 1964-07-17 1966-02-15 Petersen Gerald A Earth auger construction
US3422915A (en) * 1967-06-30 1969-01-21 James P Watts Drilling auger and cutting tooth therefor
US3672455A (en) * 1970-04-14 1972-06-27 Tarton Ind Inc Drag bits

Also Published As

Publication number Publication date
GB1433556A (en) 1976-04-28
FR2209039B1 (en)) 1981-04-30
ES421061A1 (es) 1976-05-01
ZA738875B (en) 1974-10-30
FR2209039A1 (en)) 1974-06-28
US3794129A (en) 1974-02-26
CA992533A (en) 1976-07-06

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