FR707926A - Dispositif de forage - Google Patents

Dispositif de forage

Info

Publication number: FR707926A
Authority: FR; France
Prior art keywords: drilling device; drilling
Prior art date: 1929-12-18
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

Application number

Other languages

Inventor

Wilhelm Zimmermann

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.)

1929-12-18

Filing date

1930-12-18

Publication date

1931-07-16

1930-12-18 Application filed filed Critical

1931-07-16 Application granted granted Critical

1931-07-16 Publication of FR707926A publication Critical patent/FR707926A/fr

Status Expired legal-status Critical Current

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
- E21B1/00—Percussion drilling
- E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
- E21B1/04—Devices for reversing the movement of the rod or cable at the surface

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)

FR707926D 1929-12-18 1930-12-18 Dispositif de forage Expired FR707926A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE707926X		1929-12-18

Publications (1)

Publication Number	Publication Date
FR707926A true FR707926A (fr)	1931-07-16

Family

ID=6617505

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR707926D Expired FR707926A (fr)	1929-12-18	1930-12-18	Dispositif de forage

Country Status (1)

Country	Link
FR (1)	FR707926A (fr)

1930
- 1930-12-18 FR FR707926D patent/FR707926A/fr not_active Expired

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