FR2284415B1 - - Google Patents

Info

Publication number
FR2284415B1
FR2284415B1 FR7527853A FR7527853A FR2284415B1 FR 2284415 B1 FR2284415 B1 FR 2284415B1 FR 7527853 A FR7527853 A FR 7527853A FR 7527853 A FR7527853 A FR 7527853A FR 2284415 B1 FR2284415 B1 FR 2284415B1
Authority
FR
France
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
FR7527853A
Other languages
French (fr)
Other versions
FR2284415A1 (fr
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.)
Joy Global Industries Ltd
Original Assignee
Dobson Park Industries 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 Dobson Park Industries Ltd filed Critical Dobson Park Industries Ltd
Publication of FR2284415A1 publication Critical patent/FR2284415A1/fr
Application granted granted Critical
Publication of FR2284415B1 publication Critical patent/FR2284415B1/fr
Granted 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
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Percussive Tools And Related Accessories (AREA)
FR7527853A 1974-09-11 1975-09-11 Outil a percussion perfectionne, du type commande par un fluide sous pression Granted FR2284415A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3961074A GB1523594A (en) 1974-09-11 1974-09-11 Pressure-fluid operated percussive tools

Publications (2)

Publication Number Publication Date
FR2284415A1 FR2284415A1 (fr) 1976-04-09
FR2284415B1 true FR2284415B1 (enExample) 1982-02-26

Family

ID=10410504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7527853A Granted FR2284415A1 (fr) 1974-09-11 1975-09-11 Outil a percussion perfectionne, du type commande par un fluide sous pression

Country Status (3)

Country Link
JP (1) JPS5153683A (enExample)
FR (1) FR2284415A1 (enExample)
GB (1) GB1523594A (enExample)

Also Published As

Publication number Publication date
GB1523594A (en) 1978-09-06
FR2284415A1 (fr) 1976-04-09
JPS5153683A (ja) 1976-05-12
JPS5432990B2 (enExample) 1979-10-17

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Legal Events

Date Code Title Description
ST Notification of lapse