DE8912404U1 - - Google Patents

Info

Publication number
DE8912404U1
DE8912404U1 DE8912404U DE8912404U DE8912404U1 DE 8912404 U1 DE8912404 U1 DE 8912404U1 DE 8912404 U DE8912404 U DE 8912404U DE 8912404 U DE8912404 U DE 8912404U DE 8912404 U1 DE8912404 U1 DE 8912404U1
Authority
DE
Germany
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.)
Expired - Lifetime
Application number
DE8912404U
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE8912404U priority Critical patent/DE8912404U1/de
Publication of DE8912404U1 publication Critical patent/DE8912404U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/16—Machines for digging other holes in the soil
    • E02F5/20—Machines for digging other holes in the soil for vertical holes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/087—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods by means of a swinging arm
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
DE8912404U 1989-10-19 1989-10-19 Expired - Lifetime DE8912404U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8912404U DE8912404U1 (de) 1989-10-19 1989-10-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8912404U DE8912404U1 (de) 1989-10-19 1989-10-19

Publications (1)

Publication Number Publication Date
DE8912404U1 true DE8912404U1 (de) 1989-12-14

Family

ID=6843834

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8912404U Expired - Lifetime DE8912404U1 (de) 1989-10-19 1989-10-19

Country Status (1)

Country Link
DE (1) DE8912404U1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992010637A2 (en) * 1990-12-12 1992-06-25 Van Dalfsen Rotar Equipment B.V. Tool for making holes in the ground
US5797705A (en) * 1990-12-12 1998-08-25 Willibald Kellner Method for manufacturing a tubular foundation in the ground

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992010637A2 (en) * 1990-12-12 1992-06-25 Van Dalfsen Rotar Equipment B.V. Tool for making holes in the ground
WO1992010637A3 (en) * 1990-12-12 1992-12-10 Dalfsen Rotar Equipment B V Va Tool for making holes in the ground
US5797705A (en) * 1990-12-12 1998-08-25 Willibald Kellner Method for manufacturing a tubular foundation in the ground

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