NO854621L - Hullgraver. - Google Patents

Hullgraver.

Info

Publication number
NO854621L
NO854621L NO854621A NO854621A NO854621L NO 854621 L NO854621 L NO 854621L NO 854621 A NO854621 A NO 854621A NO 854621 A NO854621 A NO 854621A NO 854621 L NO854621 L NO 854621L
Authority
NO
Norway
Prior art keywords
vibrator
cone
ground
hole
hole digger
Prior art date
Application number
NO854621A
Other languages
English (en)
Norwegian (no)
Inventor
Alec Reginald Carruthers
Original Assignee
Alh Syst 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 Alh Syst Ltd filed Critical Alh Syst Ltd
Publication of NO854621L publication Critical patent/NO854621L/no

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/26—Drilling without earth removal, e.g. with self-propelled burrowing devices

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
NO854621A 1984-11-20 1985-11-19 Hullgraver. NO854621L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848429287A GB8429287D0 (en) 1984-11-20 1984-11-20 Mole

Publications (1)

Publication Number Publication Date
NO854621L true NO854621L (no) 1986-05-21

Family

ID=10569986

Family Applications (1)

Application Number Title Priority Date Filing Date
NO854621A NO854621L (no) 1984-11-20 1985-11-19 Hullgraver.

Country Status (6)

Country Link
EP (1) EP0182551B1 (de)
AU (1) AU4999985A (de)
DE (1) DE3570717D1 (de)
GB (1) GB8429287D0 (de)
NO (1) NO854621L (de)
NZ (1) NZ214234A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756644A (en) * 1987-05-14 1988-07-12 Williams Richard Lee Rerounding apparatus
DE3829628A1 (de) * 1988-09-01 1990-03-15 Schmidt Paul Rammbohrgeraet zum grabenlosen verlegen von versorgungsleitungen
DE3839633C1 (de) * 1988-11-24 1990-04-05 Schmidt, Paul, Dipl.-Ing., 5940 Lennestadt, De
GB2233060A (en) * 1989-06-09 1991-01-02 British Gas Plc Pipe burster.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293231A (en) * 1980-01-07 1981-10-06 Lyle John S Bearingless vibrator
EP0053480B2 (de) * 1980-12-02 1992-07-29 British Gas plc Austausch von Rohrleitungen
DE3270340D1 (en) * 1981-01-22 1986-05-15 Hitachi Construction Machinery Pipe embedding method and system
DE3481821D1 (de) * 1983-05-26 1990-05-10 Nippon Telegraph & Telephone Geraet zur schwingungserzeugung.

Also Published As

Publication number Publication date
DE3570717D1 (en) 1989-07-06
NZ214234A (en) 1987-05-29
EP0182551A3 (en) 1987-09-30
EP0182551B1 (de) 1989-05-31
GB8429287D0 (en) 1984-12-27
EP0182551A2 (de) 1986-05-28
AU4999985A (en) 1986-05-29

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