DE3671856D1 - Hydraulisch schlagendes geraet. - Google Patents

Hydraulisch schlagendes geraet.

Info

Publication number
DE3671856D1
DE3671856D1 DE8686302031T DE3671856T DE3671856D1 DE 3671856 D1 DE3671856 D1 DE 3671856D1 DE 8686302031 T DE8686302031 T DE 8686302031T DE 3671856 T DE3671856 T DE 3671856T DE 3671856 D1 DE3671856 D1 DE 3671856D1
Authority
DE
Germany
Prior art keywords
shuttle valve
port
uncovered
piston
covered
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 - Fee Related
Application number
DE8686302031T
Other languages
English (en)
Inventor
Clive Wilfred Hunt
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.)
STEEL ENG CO Ltd
Original Assignee
STEEL ENG CO Ltd
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 STEEL ENG CO Ltd filed Critical STEEL ENG CO Ltd
Application granted granted Critical
Publication of DE3671856D1 publication Critical patent/DE3671856D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Seats For Vehicles (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
DE8686302031T 1985-03-26 1986-03-19 Hydraulisch schlagendes geraet. Expired - Fee Related DE3671856D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA852266 1985-03-26

Publications (1)

Publication Number Publication Date
DE3671856D1 true DE3671856D1 (de) 1990-07-19

Family

ID=25577819

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686302031T Expired - Fee Related DE3671856D1 (de) 1985-03-26 1986-03-19 Hydraulisch schlagendes geraet.

Country Status (8)

Country Link
US (1) US4852663A (de)
EP (1) EP0196195B1 (de)
AT (1) ATE53526T1 (de)
AU (1) AU578147B2 (de)
CA (1) CA1258808A (de)
DE (1) DE3671856D1 (de)
FI (1) FI88272C (de)
NO (1) NO171379C (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995016548A1 (en) * 1993-12-17 1995-06-22 Jarmo Uolevi Leppanen Accumulator charging system
US5408768A (en) * 1994-03-18 1995-04-25 Karani; Ron R. Impact hammer cylinder
DE19652079C2 (de) * 1996-12-14 1999-02-25 Krupp Berco Bautechnik Gmbh Fluidbetriebenes Schlagwerk
US6196252B1 (en) 1999-09-30 2001-03-06 Daimlerchrysler Corporation Shuttle valve for a multipath hydraulic circuit with bypass pressure venting
FI116124B (fi) * 2004-02-23 2005-09-30 Sandvik Tamrock Oy Painenestekäyttöinen iskulaite
SE536562C2 (sv) * 2012-06-28 2014-02-25 Atlas Copco Rock Drills Ab Anordning och förfarande vid en hydraulisk bergborrmaskin jämte bergborrmaskin

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1134561A (en) * 1965-05-14 1968-11-27 Nat Res Dev Power transmission apparatus
US3701386A (en) * 1970-12-11 1972-10-31 Dresser Ind Hydraulic drifter
US3887019A (en) * 1971-05-11 1975-06-03 Af Hydraulics Hydraulic percussive implement
US3780621A (en) * 1971-06-07 1973-12-25 Atlas Copco Ab Hydraulic fluid actuated percussion tool
GB1501092A (en) * 1974-03-19 1978-02-15 Keelavite Hydraulics Ltd Hydraulic reciprocating apparatus
ZA761650B (en) * 1976-03-17 1977-07-27 Steel Eng Co Ltd Hydraulic percussive machines
GB1599127A (en) * 1978-03-22 1981-09-30 Dobson Park Ind Powered percussive hand tools
SU977752A1 (ru) * 1980-11-05 1982-11-30 Научно-Исследовательский Горнорудный Институт Гидроударник
SU962456A1 (ru) * 1980-12-08 1982-09-30 Омский политехнический институт Гидромолот
FI66460C (fi) * 1982-10-08 1984-10-10 Tampella Oy Ab Tryckmediedriven slagapparat

Also Published As

Publication number Publication date
ATE53526T1 (de) 1990-06-15
US4852663A (en) 1989-08-01
FI88272C (fi) 1993-04-26
FI88272B (fi) 1993-01-15
FI861263A (fi) 1986-09-27
EP0196195B1 (de) 1990-06-13
EP0196195A1 (de) 1986-10-01
NO171379B (no) 1992-11-23
AU578147B2 (en) 1988-10-13
CA1258808A (en) 1989-08-29
FI861263A0 (fi) 1986-03-25
AU5491886A (en) 1986-10-02
NO861072L (no) 1986-09-29
NO171379C (no) 1993-03-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee