GB2171948B - Hydraulic impact tool - Google Patents

Hydraulic impact tool

Info

Publication number
GB2171948B
GB2171948B GB08504900A GB8504900A GB2171948B GB 2171948 B GB2171948 B GB 2171948B GB 08504900 A GB08504900 A GB 08504900A GB 8504900 A GB8504900 A GB 8504900A GB 2171948 B GB2171948 B GB 2171948B
Authority
GB
United Kingdom
Prior art keywords
impact tool
hydraulic impact
hydraulic
tool
impact
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
Application number
GB08504900A
Other versions
GB8504900D0 (en
GB2171948A (en
Inventor
John Leslie Northwood
David Coy
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents 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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB08504900A priority Critical patent/GB2171948B/en
Publication of GB8504900D0 publication Critical patent/GB8504900D0/en
Publication of GB2171948A publication Critical patent/GB2171948A/en
Application granted granted Critical
Publication of GB2171948B publication Critical patent/GB2171948B/en
Expired 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)
  • Percussive Tools And Related Accessories (AREA)
GB08504900A 1985-02-26 1985-02-26 Hydraulic impact tool Expired GB2171948B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08504900A GB2171948B (en) 1985-02-26 1985-02-26 Hydraulic impact tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08504900A GB2171948B (en) 1985-02-26 1985-02-26 Hydraulic impact tool

Publications (3)

Publication Number Publication Date
GB8504900D0 GB8504900D0 (en) 1985-03-27
GB2171948A GB2171948A (en) 1986-09-10
GB2171948B true GB2171948B (en) 1988-07-06

Family

ID=10575085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08504900A Expired GB2171948B (en) 1985-02-26 1985-02-26 Hydraulic impact tool

Country Status (1)

Country Link
GB (1) GB2171948B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535691C1 (en) * 1995-09-26 1997-01-23 Rothenberger Werkzeuge Masch Hydraulically driven hand tool
FI108409B (en) 1997-12-11 2002-01-31 Tamrock Oy Arrangement with hydraulic breaker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086246A (en) * 1965-03-12 1967-10-04 Amsted Ind Inc A shearing machine and method of shearing
GB1599127A (en) * 1978-03-22 1981-09-30 Dobson Park Ind Powered percussive hand tools
GB1595149A (en) * 1978-05-31 1981-08-05 Impulse Products Inc Hydraulically powered impact tool
GB2113593B (en) * 1981-11-24 1985-06-19 Coal Ind Hydraulic tool

Also Published As

Publication number Publication date
GB8504900D0 (en) 1985-03-27
GB2171948A (en) 1986-09-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee