[go: up one dir, main page]

FR1308001A - Improvement to pneumatic hammer drills going to the bottom of the tron - Google Patents

Improvement to pneumatic hammer drills going to the bottom of the tron

Info

Publication number
FR1308001A
FR1308001A FR873671A FR873671A FR1308001A FR 1308001 A FR1308001 A FR 1308001A FR 873671 A FR873671 A FR 873671A FR 873671 A FR873671 A FR 873671A FR 1308001 A FR1308001 A FR 1308001A
Authority
FR
France
Prior art keywords
tron
going
improvement
pneumatic hammer
hammer drills
Prior art date
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
FR873671A
Other languages
French (fr)
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.)
FORGES ET ATELIERS DE MEUDON
Original Assignee
FORGES ET ATELIERS DE MEUDON
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 FORGES ET ATELIERS DE MEUDON filed Critical FORGES ET ATELIERS DE MEUDON
Priority to FR873671A priority Critical patent/FR1308001A/en
Application granted granted Critical
Publication of FR1308001A publication Critical patent/FR1308001A/en
Expired legal-status Critical Current

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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

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)
FR873671A 1961-09-20 1961-09-20 Improvement to pneumatic hammer drills going to the bottom of the tron Expired FR1308001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR873671A FR1308001A (en) 1961-09-20 1961-09-20 Improvement to pneumatic hammer drills going to the bottom of the tron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR873671A FR1308001A (en) 1961-09-20 1961-09-20 Improvement to pneumatic hammer drills going to the bottom of the tron

Publications (1)

Publication Number Publication Date
FR1308001A true FR1308001A (en) 1962-11-03

Family

ID=8763146

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873671A Expired FR1308001A (en) 1961-09-20 1961-09-20 Improvement to pneumatic hammer drills going to the bottom of the tron

Country Status (1)

Country Link
FR (1) FR1308001A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924392A1 (en) * 1979-06-16 1980-12-18 Brueckner Grundbau Gmbh DRILLING DEVICE FOR OVERLAY DRILLING
DE2924393A1 (en) * 1979-06-16 1980-12-18 Brueckner Grundbau Gmbh Overlay borehole drilling rig - has independent rotary drives for inner and outer tubes on feed assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924392A1 (en) * 1979-06-16 1980-12-18 Brueckner Grundbau Gmbh DRILLING DEVICE FOR OVERLAY DRILLING
DE2924393A1 (en) * 1979-06-16 1980-12-18 Brueckner Grundbau Gmbh Overlay borehole drilling rig - has independent rotary drives for inner and outer tubes on feed assembly

Similar Documents

Publication Publication Date Title
CH424603A (en) Hammer drill attachment
BE598809A (en) Improvements to tools working by percussion
BE607933A (en) Improvements to percussion tools
FR1338815A (en) Improvements to pneumatic transducers
FR1308001A (en) Improvement to pneumatic hammer drills going to the bottom of the tron
FR1333422A (en) Improvements to containers
FR1338796A (en) Improvements to electromagnetic hammers
FR1352808A (en) Twist Drill Improvements
FR1328752A (en) Improvements to pneumatic envelopes
FR1315140A (en) Improvements to agitators
FR1294336A (en) Improvements to drills or the like
FR1254263A (en) Improvements to pneumatic envelopes
FR1304271A (en) Improvements to pneumatic tools working by percussion
FR1309265A (en) Improvements to percussion drills
FR1296097A (en) Improvements to aerosol sprays
FR1320010A (en) Improvements to tools for working the soil
FR1277170A (en) Improvements to tools working by percussion
FR1298702A (en) Improvements to bags or similar containers
FR1297238A (en) Improvements to pneumatic fenders
FR1365379A (en) Hammer drill
FR1308619A (en) Improvements to tools working by percussion
FR1253686A (en) Improvements to aerators
FR1196253A (en) Improvements to pneumatic percussion tools
FR1308339A (en) Improvements to floors
FR1284596A (en) Improvements to shoring beams