FR2165470A5 - - Google Patents

Info

Publication number
FR2165470A5
FR2165470A5 FR7244033A FR7244033A FR2165470A5 FR 2165470 A5 FR2165470 A5 FR 2165470A5 FR 7244033 A FR7244033 A FR 7244033A FR 7244033 A FR7244033 A FR 7244033A FR 2165470 A5 FR2165470 A5 FR 2165470A5
Authority
FR
France
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
FR7244033A
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.)
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
Application granted granted Critical
Publication of FR2165470A5 publication Critical patent/FR2165470A5/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
    • 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
    • E21B1/36—Tool-carrier piston type, i.e. in which the tool is connected to an impulse member

Landscapes

  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
FR7244033A 1971-12-17 1972-12-11 Expired FR2165470A5 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1841371A CH540425A (de) 1971-12-17 1971-12-17 Schlag- oder Schlagbohrhammer

Publications (1)

Publication Number Publication Date
FR2165470A5 true FR2165470A5 (it) 1973-08-03

Family

ID=4432819

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7244033A Expired FR2165470A5 (it) 1971-12-17 1972-12-11

Country Status (10)

Country Link
JP (1) JPS4867101A (it)
AU (1) AU5015672A (it)
BE (1) BE791962A (it)
CH (1) CH540425A (it)
DE (1) DE2253273A1 (it)
ES (1) ES410229A1 (it)
FR (1) FR2165470A5 (it)
IT (1) IT971733B (it)
NL (1) NL7215685A (it)
ZA (1) ZA728781B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995700A (en) * 1975-10-14 1976-12-07 Gardner-Denver Company Hydraulic rock drill system
JPS5910237Y2 (ja) * 1976-06-07 1984-03-30 古河鉱業株式会社 坑内用大形さく岩機

Also Published As

Publication number Publication date
IT971733B (it) 1974-05-10
JPS4867101A (it) 1973-09-13
ES410229A1 (es) 1975-12-01
DE2253273A1 (de) 1973-06-28
NL7215685A (it) 1973-06-19
CH540425A (de) 1973-08-15
AU5015672A (en) 1974-06-20
BE791962A (fr) 1973-03-16
ZA728781B (en) 1973-08-29

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Legal Events

Date Code Title Description
ST Notification of lapse