IT1230342B - Dispositivo di comando per valvole di distribuzione in martelli oleodinamici. - Google Patents

Dispositivo di comando per valvole di distribuzione in martelli oleodinamici.

Info

Publication number
IT1230342B
IT1230342B IT8921177A IT2117789A IT1230342B IT 1230342 B IT1230342 B IT 1230342B IT 8921177 A IT8921177 A IT 8921177A IT 2117789 A IT2117789 A IT 2117789A IT 1230342 B IT1230342 B IT 1230342B
Authority
IT
Italy
Prior art keywords
control device
distribution valves
hydraulic hammers
hammers
hydraulic
Prior art date
Application number
IT8921177A
Other languages
English (en)
Other versions
IT8921177A0 (it
Inventor
Renato Damiano
Original Assignee
Oleotec Di Musso Marco E C S A
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 Oleotec Di Musso Marco E C S A filed Critical Oleotec Di Musso Marco E C S A
Priority to IT8921177A priority Critical patent/IT1230342B/it
Publication of IT8921177A0 publication Critical patent/IT8921177A0/it
Priority to EP19900830180 priority patent/EP0408517A3/en
Application granted granted Critical
Publication of IT1230342B publication Critical patent/IT1230342B/it

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)
IT8921177A 1989-07-14 1989-07-14 Dispositivo di comando per valvole di distribuzione in martelli oleodinamici. IT1230342B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT8921177A IT1230342B (it) 1989-07-14 1989-07-14 Dispositivo di comando per valvole di distribuzione in martelli oleodinamici.
EP19900830180 EP0408517A3 (en) 1989-07-14 1990-04-27 Control device for slide valves in oil-operated hammers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8921177A IT1230342B (it) 1989-07-14 1989-07-14 Dispositivo di comando per valvole di distribuzione in martelli oleodinamici.

Publications (2)

Publication Number Publication Date
IT8921177A0 IT8921177A0 (it) 1989-07-14
IT1230342B true IT1230342B (it) 1991-10-18

Family

ID=11177937

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8921177A IT1230342B (it) 1989-07-14 1989-07-14 Dispositivo di comando per valvole di distribuzione in martelli oleodinamici.

Country Status (2)

Country Link
EP (1) EP0408517A3 (it)
IT (1) IT1230342B (it)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE388335C (de) * 1924-01-11 Ernst Rehfeld Pressluftwerkzeug mit einem den Auspuff sowohl fuer den Arbeitshub als auch fuer denRueckhub steuernden, mit vier Steuerflaechen versehenen Ventil
DE152011C (it) *
US1629845A (en) * 1925-05-23 1927-05-24 Chicago Pneumatic Tool Co Pneumatic percussive tool
US1832432A (en) * 1928-10-01 1931-11-17 Chicago Pneumatic Tool Co Pneumatic hammer
US1895153A (en) * 1932-09-07 1933-01-24 Cleveland Rock Drill Co Valve for rock drills
FI56430C (fi) * 1975-10-20 1982-08-09 Tampella Oy Ab Slaganordning driven av en tryckvaetska

Also Published As

Publication number Publication date
EP0408517A3 (en) 1991-06-05
EP0408517A2 (en) 1991-01-16
IT8921177A0 (it) 1989-07-14

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970731