KR970018330U - Ground drilling bits - Google Patents

Ground drilling bits

Info

Publication number
KR970018330U
KR970018330U KR2019950029933U KR19950029933U KR970018330U KR 970018330 U KR970018330 U KR 970018330U KR 2019950029933 U KR2019950029933 U KR 2019950029933U KR 19950029933 U KR19950029933 U KR 19950029933U KR 970018330 U KR970018330 U KR 970018330U
Authority
KR
South Korea
Prior art keywords
ground drilling
drilling bits
bits
ground
drilling
Prior art date
Application number
KR2019950029933U
Other languages
Korean (ko)
Other versions
KR200152366Y1 (en
Inventor
신영숙
Original Assignee
주식회사대우
주식회사동아지질
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 주식회사대우, 주식회사동아지질 filed Critical 주식회사대우
Priority to KR2019950029933U priority Critical patent/KR200152366Y1/en
Publication of KR970018330U publication Critical patent/KR970018330U/en
Application granted granted Critical
Publication of KR200152366Y1 publication Critical patent/KR200152366Y1/en

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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0038—Production methods using an auger, i.e. continuous flight type
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil

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)
KR2019950029933U 1995-10-20 1995-10-20 Drill bit KR200152366Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019950029933U KR200152366Y1 (en) 1995-10-20 1995-10-20 Drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019950029933U KR200152366Y1 (en) 1995-10-20 1995-10-20 Drill bit

Publications (2)

Publication Number Publication Date
KR970018330U true KR970018330U (en) 1997-05-26
KR200152366Y1 KR200152366Y1 (en) 1999-07-15

Family

ID=19426754

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019950029933U KR200152366Y1 (en) 1995-10-20 1995-10-20 Drill bit

Country Status (1)

Country Link
KR (1) KR200152366Y1 (en)

Also Published As

Publication number Publication date
KR200152366Y1 (en) 1999-07-15

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20090421

Year of fee payment: 11

LAPS Lapse due to unpaid annual fee