ZA728781B - Power hammer,especially percussion hammer or percussion hammer drill - Google Patents

Power hammer,especially percussion hammer or percussion hammer drill

Info

Publication number
ZA728781B
ZA728781B ZA728781A ZA728781A ZA728781B ZA 728781 B ZA728781 B ZA 728781B ZA 728781 A ZA728781 A ZA 728781A ZA 728781 A ZA728781 A ZA 728781A ZA 728781 B ZA728781 B ZA 728781B
Authority
ZA
South Africa
Prior art keywords
hammer
percussion
percussion hammer
power
drill
Prior art date
Application number
ZA728781A
Inventor
A Meyer
Original Assignee
A Meyer
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 A Meyer filed Critical A Meyer
Publication of ZA728781B publication Critical patent/ZA728781B/en

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)
ZA728781A 1971-12-17 1972-12-12 Power hammer,especially percussion hammer or percussion hammer drill ZA728781B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1841371A CH540425A (en) 1971-12-17 1971-12-17 Impact hammer or hammer drill

Publications (1)

Publication Number Publication Date
ZA728781B true ZA728781B (en) 1973-08-29

Family

ID=4432819

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA728781A ZA728781B (en) 1971-12-17 1972-12-12 Power hammer,especially percussion hammer or percussion hammer drill

Country Status (10)

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

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 (en) * 1976-06-07 1984-03-30 古河鉱業株式会社 Large underground rock drill

Also Published As

Publication number Publication date
IT971733B (en) 1974-05-10
NL7215685A (en) 1973-06-19
AU5015672A (en) 1974-06-20
BE791962A (en) 1973-03-16
FR2165470A5 (en) 1973-08-03
JPS4867101A (en) 1973-09-13
ES410229A1 (en) 1975-12-01
DE2253273A1 (en) 1973-06-28
CH540425A (en) 1973-08-15

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