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FR666539A - Soupape pour perforatrices - Google Patents

Soupape pour perforatrices

Info

Publication number
FR666539A
FR666539A FR666539DA FR666539A FR 666539 A FR666539 A FR 666539A FR 666539D A FR666539D A FR 666539DA FR 666539 A FR666539 A FR 666539A
Authority
FR
France
Prior art keywords
punches
valve
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
Other languages
English (en)
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR666539A publication Critical patent/FR666539A/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
    • B25D9/16—Valve arrangements therefor
    • B25D9/24—Valve arrangements therefor involving a rocking-plate type valve

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR666539D 1928-04-27 1928-12-29 Soupape pour perforatrices Expired FR666539A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US666539XA 1928-04-27 1928-04-27

Publications (1)

Publication Number Publication Date
FR666539A true FR666539A (fr) 1929-10-02

Family

ID=22070846

Family Applications (1)

Application Number Title Priority Date Filing Date
FR666539D Expired FR666539A (fr) 1928-04-27 1928-12-29 Soupape pour perforatrices

Country Status (1)

Country Link
FR (1) FR666539A (fr)

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