CH367767A - Rotary drilling device for cohesive soils - Google Patents

Rotary drilling device for cohesive soils

Info

Publication number
CH367767A
CH367767A CH5446158A CH5446158A CH367767A CH 367767 A CH367767 A CH 367767A CH 5446158 A CH5446158 A CH 5446158A CH 5446158 A CH5446158 A CH 5446158A CH 367767 A CH367767 A CH 367767A
Authority
CH
Switzerland
Prior art keywords
drilling device
rotary drilling
cohesive soils
soils
cohesive
Prior art date
Application number
CH5446158A
Other languages
German (de)
Inventor
Stihl Andreas
Flach Horst
Original Assignee
Stihl Andreas
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 Stihl Andreas filed Critical Stihl Andreas
Publication of CH367767A publication Critical patent/CH367767A/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

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)
CH5446158A 1957-01-08 1958-01-08 Rotary drilling device for cohesive soils CH367767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST12101A DE1098452B (en) 1957-01-08 1957-01-08 Rotary drills for cohesive soils, such as clay, loam, etc., and shallow holes and drill hole diameters up to about 100 mm

Publications (1)

Publication Number Publication Date
CH367767A true CH367767A (en) 1963-02-28

Family

ID=7455622

Family Applications (1)

Application Number Title Priority Date Filing Date
CH5446158A CH367767A (en) 1957-01-08 1958-01-08 Rotary drilling device for cohesive soils

Country Status (2)

Country Link
CH (1) CH367767A (en)
DE (1) DE1098452B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI94885C (en) * 1990-02-28 1995-11-10 Matti Kalervo Tiikkainen Apparatus and method for forming a vertical foundation or for making vias

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR498587A (en) * 1915-05-05 1920-01-15 Cesare Cantoni Automatic drilling torpedo, electrically or otherwise, for underground work and others
US2639122A (en) * 1949-11-01 1953-05-19 Gerald A Petersen Pilot bit for earth augers

Also Published As

Publication number Publication date
DE1098452B (en) 1961-01-26

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