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DE69902517D1 - LIQUID-OPERATED TOOL - Google Patents

LIQUID-OPERATED TOOL

Info

Publication number
DE69902517D1
DE69902517D1 DE69902517T DE69902517T DE69902517D1 DE 69902517 D1 DE69902517 D1 DE 69902517D1 DE 69902517 T DE69902517 T DE 69902517T DE 69902517 T DE69902517 T DE 69902517T DE 69902517 D1 DE69902517 D1 DE 69902517D1
Authority
DE
Germany
Prior art keywords
piston
cylinder
movement
liquid
bores
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 - Lifetime
Application number
DE69902517T
Other languages
German (de)
Inventor
George Naismith
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.)
CALDERVALE ENGINEERING SERVICE
Original Assignee
CALDERVALE ENGINEERING SERVICE
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10826186&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69902517(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by CALDERVALE ENGINEERING SERVICE filed Critical CALDERVALE ENGINEERING SERVICE
Application granted granted Critical
Publication of DE69902517D1 publication Critical patent/DE69902517D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25D9/16—Valve arrangements therefor
    • B25D9/20—Valve arrangements therefor involving a tubular-type slide valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D2209/002—Pressure accumulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D2209/005—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously having a tubular-slide valve, which is coaxial with the piston

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Nozzles (AREA)
  • Catching Or Destruction (AREA)

Abstract

A fluid actuated tool in the form of a hydraulic hammer (20) comprises a body (22), a cylinder (26) and a chuck body (28). A piston (34) mounted within the cylinder (26) reciprocates and impacts on a chisel (36). Movement of the piston (34) results from the supply of hydraulic fluid, controlled by an apertured distributor valve sleeve (38) with a number of cylinder ports (40) communicating with a series of axial fluid carrying bores (42). Movement of the piston (34) and the sleeve (38) bring ports (40) and bores (42) into and out of alignment, so regulating movement of the piston (34).
DE69902517T 1998-01-31 1999-01-29 LIQUID-OPERATED TOOL Expired - Lifetime DE69902517D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9802034.0A GB9802034D0 (en) 1998-01-31 1998-01-31 Fluid actuated tool
PCT/GB1999/000133 WO1999038655A1 (en) 1998-01-31 1999-01-29 Fluid actuated tool

Publications (1)

Publication Number Publication Date
DE69902517D1 true DE69902517D1 (en) 2002-09-19

Family

ID=10826186

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69902517T Expired - Lifetime DE69902517D1 (en) 1998-01-31 1999-01-29 LIQUID-OPERATED TOOL

Country Status (6)

Country Link
EP (1) EP1058600B1 (en)
AT (1) ATE222160T1 (en)
AU (1) AU2286799A (en)
DE (1) DE69902517D1 (en)
GB (1) GB9802034D0 (en)
WO (1) WO1999038655A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR430201A0 (en) * 2001-04-09 2001-05-17 Russell Mineral Equipment Pty Ltd Linerbolt removing tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2259379A (en) * 1939-02-04 1941-10-14 Stahlwerk Mark Wengern A G Pneumatic percussion tool with slide valve control gear
FI56430C (en) * 1975-10-20 1982-08-09 Tampella Oy Ab SLAGANORDNING DRIVEN AV EN TRYCKVAETSKA
DE3400302A1 (en) * 1984-01-03 1985-08-29 Mannesmann AG, 4000 Düsseldorf HYDRAULIC ACTUATOR

Also Published As

Publication number Publication date
ATE222160T1 (en) 2002-08-15
WO1999038655A1 (en) 1999-08-05
EP1058600B1 (en) 2002-08-14
AU2286799A (en) 1999-08-16
EP1058600A1 (en) 2000-12-13
GB9802034D0 (en) 1998-03-25

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Legal Events

Date Code Title Description
8332 No legal effect for de