FR671429A - Boîte de soupape pour perforatrice - Google Patents

Boîte de soupape pour perforatrice

Info

Publication number
FR671429A
FR671429A FR671429DA FR671429A FR 671429 A FR671429 A FR 671429A FR 671429D A FR671429D A FR 671429DA FR 671429 A FR671429 A FR 671429A
Authority
FR
France
Prior art keywords
valve box
hole punch
punch
hole
box
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 FR671429A publication Critical patent/FR671429A/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)
FR671429D 1928-05-17 1929-03-13 Boîte de soupape pour perforatrice Expired FR671429A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US671429XA 1928-05-17 1928-05-17

Publications (1)

Publication Number Publication Date
FR671429A true FR671429A (fr) 1929-12-12

Family

ID=22073975

Family Applications (1)

Application Number Title Priority Date Filing Date
FR671429D Expired FR671429A (fr) 1928-05-17 1929-03-13 Boîte de soupape pour perforatrice

Country Status (1)

Country Link
FR (1) FR671429A (fr)

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