FI771344A7 - - Google Patents

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Info

Publication number
FI771344A7
FI771344A7 FI771344A FI771344A FI771344A7 FI 771344 A7 FI771344 A7 FI 771344A7 FI 771344 A FI771344 A FI 771344A FI 771344 A FI771344 A FI 771344A FI 771344 A7 FI771344 A7 FI 771344A7
Authority
FI
Finland
Application number
FI771344A
Other languages
Finnish (fi)
Inventor
George Allen Hibbard
Ward Duffey Morrison
Original Assignee
Joy Mfg Co
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 Joy Mfg Co filed Critical Joy Mfg Co
Publication of FI771344A7 publication Critical patent/FI771344A7/fi

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
    • 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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Details Of Reciprocating Pumps (AREA)
FI771344A 1976-04-28 1977-04-27 FI771344A7 (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68082376A 1976-04-28 1976-04-28
US68082276A 1976-04-28 1976-04-28

Publications (1)

Publication Number Publication Date
FI771344A7 true FI771344A7 (enrdf_load_stackoverflow) 1977-10-29

Family

ID=27102528

Family Applications (1)

Application Number Title Priority Date Filing Date
FI771344A FI771344A7 (enrdf_load_stackoverflow) 1976-04-28 1977-04-27

Country Status (13)

Country Link
JP (1) JPS52133001A (enrdf_load_stackoverflow)
AU (1) AU520326B2 (enrdf_load_stackoverflow)
BR (1) BR7702614A (enrdf_load_stackoverflow)
DE (1) DE2719002A1 (enrdf_load_stackoverflow)
ES (1) ES458572A1 (enrdf_load_stackoverflow)
FI (1) FI771344A7 (enrdf_load_stackoverflow)
FR (1) FR2349747A1 (enrdf_load_stackoverflow)
GB (1) GB1588525A (enrdf_load_stackoverflow)
IT (1) IT1076743B (enrdf_load_stackoverflow)
MX (1) MX147859A (enrdf_load_stackoverflow)
SE (1) SE7704440L (enrdf_load_stackoverflow)
SU (1) SU784805A3 (enrdf_load_stackoverflow)
YU (1) YU109877A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8606645D0 (en) * 1986-03-18 1986-04-23 Dowty Mining Machinery Ltd Rock drill assembly
SE535149C2 (sv) 2010-08-31 2012-05-02 Atlas Copco Rock Drills Ab Hydrauliskt slagverk för användning i berg-eller betongavverkande utrustning
SE536289C2 (sv) * 2011-04-05 2013-08-06 Atlas Copco Rock Drills Ab Hydrauliska slagverk för berg- eller betongavverkande utrustning samt borr- och brytutrustning
SE535757C2 (sv) * 2011-04-05 2012-12-11 Atlas Copco Rock Drills Ab Anordning och förfarande för berg- och betongbearbetning
CN115949647A (zh) * 2022-12-28 2023-04-11 湖南五新隧道智能装备股份有限公司 一种压差换向的冲击油缸

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579334A (enrdf_load_stackoverflow) * 1968-09-06 1969-08-22
US3592109A (en) * 1969-03-05 1971-07-13 Chance Co Ab Reciprocating fluid motor
US3701386A (en) * 1970-12-11 1972-10-31 Dresser Ind Hydraulic drifter
GB1450972A (en) * 1974-06-11 1976-09-29 Klemm G Percussive tool
FR2279962A1 (fr) * 1974-07-26 1976-02-20 Zahnradfabrik Friedrichshafen Distributeur, notamment pour mecanismes de direction hydrostatiques de vehicules automobiles
US4026193A (en) * 1974-09-19 1977-05-31 Raymond International Inc. Hydraulically driven hammer system
CA1071946A (en) * 1975-10-24 1980-02-19 George A. Hibbard Rock drill

Also Published As

Publication number Publication date
BR7702614A (pt) 1978-02-28
MX147859A (es) 1983-01-25
SU784805A3 (ru) 1980-11-30
ES458572A1 (es) 1978-10-16
SE7704440L (sv) 1977-10-29
DE2719002A1 (de) 1977-11-10
GB1588525A (en) 1981-04-23
JPS52133001A (en) 1977-11-08
FR2349747A1 (fr) 1977-11-25
AU520326B2 (en) 1982-01-28
IT1076743B (it) 1985-04-27
YU109877A (en) 1983-01-21
AU2438877A (en) 1978-10-26

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