FR2125902A5 - - Google Patents

Info

Publication number
FR2125902A5
FR2125902A5 FR7204872A FR7204872A FR2125902A5 FR 2125902 A5 FR2125902 A5 FR 2125902A5 FR 7204872 A FR7204872 A FR 7204872A FR 7204872 A FR7204872 A FR 7204872A FR 2125902 A5 FR2125902 A5 FR 2125902A5
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
FR7204872A
Other languages
French (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.)
SCHWERMASCHIN NOBAS NORD
Original Assignee
SCHWERMASCHIN NOBAS NORD
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
Priority claimed from DD15870871A external-priority patent/DD97142A2/xx
Application filed by SCHWERMASCHIN NOBAS NORD filed Critical SCHWERMASCHIN NOBAS NORD
Application granted granted Critical
Publication of FR2125902A5 publication Critical patent/FR2125902A5/fr
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
FR7204872A 1971-02-18 1972-02-14 Expired FR2125902A5 (enExample)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD15319171 1971-02-18
DD15870871A DD97142A2 (enExample) 1971-11-02 1971-11-02

Publications (1)

Publication Number Publication Date
FR2125902A5 true FR2125902A5 (enExample) 1972-09-29

Family

ID=25747377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7204872A Expired FR2125902A5 (enExample) 1971-02-18 1972-02-14

Country Status (4)

Country Link
DE (1) DE2206391A1 (enExample)
FR (1) FR2125902A5 (enExample)
RO (1) RO61840A (enExample)
SE (1) SE368914B (enExample)

Also Published As

Publication number Publication date
RO61840A (enExample) 1977-06-15
DE2206391A1 (de) 1972-08-31
SE368914B (enExample) 1974-07-29

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Legal Events

Date Code Title Description
ST Notification of lapse