JPS57502209A - - Google Patents

Info

Publication number
JPS57502209A
JPS57502209A JP50201681A JP50201681A JPS57502209A JP S57502209 A JPS57502209 A JP S57502209A JP 50201681 A JP50201681 A JP 50201681A JP 50201681 A JP50201681 A JP 50201681A JP S57502209 A JPS57502209 A JP S57502209A
Authority
JP
Japan
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.)
Pending
Application number
JP50201681A
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 filed Critical
Publication of JPS57502209A publication Critical patent/JPS57502209A/ja
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/28—Mineral freed by means not involving slitting by percussive drills with breaking-down means, e.g. wedge-shaped tools
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/32—Rippers
    • E02F5/323—Percussion-type rippers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/106—Making by using boring or cutting machines with percussive tools, e.g. pick-hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sealing Devices (AREA)
  • Confectionery (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
JP50201681A 1981-01-26 1981-01-26 Pending JPS57502209A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1981/000117 WO1982002468A1 (en) 1981-01-26 1981-01-26 Material fracturing apparatus

Publications (1)

Publication Number Publication Date
JPS57502209A true JPS57502209A (ja) 1982-12-16

Family

ID=22161066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50201681A Pending JPS57502209A (ja) 1981-01-26 1981-01-26

Country Status (5)

Country Link
EP (1) EP0057791A1 (ja)
JP (1) JPS57502209A (ja)
AU (1) AU7291081A (ja)
CA (1) CA1140167A (ja)
WO (1) WO1982002468A1 (ja)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1493768A (en) * 1920-08-28 1924-05-13 Rice Portable Rock Drill Corp Dustguard for percussion machines
US2305265A (en) * 1942-05-01 1942-12-15 Letourneau Inc Sealing boot assembly
US2748750A (en) * 1953-01-13 1956-06-05 Armour Res Found Vibrationless pneumatic impact tool
US3381987A (en) * 1965-06-04 1968-05-07 Ford Motor Co Double wall seal for articulated joints
US3611816A (en) * 1969-06-02 1971-10-12 Continental Gummi Werke Ag Sleeve for sealing coaxially arranged parts
US3770322A (en) * 1971-04-12 1973-11-06 Caterpillar Tractor Co Apparatus for fracture of material in situ with stored inertial energy
US3788628A (en) * 1972-11-10 1974-01-29 Wright Barry Corp Pneumatic isolator
US3868145A (en) * 1973-08-23 1975-02-25 Caterpillar Tractor Co Eccentric ring impacting mechanism for in-situ rock breakers
JPS5046845U (ja) * 1973-08-31 1975-05-10
WO1980001188A1 (en) * 1978-12-11 1980-06-12 R Livesay Mechanically actuated impact mechanism

Also Published As

Publication number Publication date
CA1140167A (en) 1983-01-25
EP0057791A1 (en) 1982-08-18
AU7291081A (en) 1982-08-16
WO1982002468A1 (en) 1982-08-05

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