FR657455A - Retainer for punch foils - Google Patents

Retainer for punch foils

Info

Publication number
FR657455A
FR657455A FR657455DA FR657455A FR 657455 A FR657455 A FR 657455A FR 657455D A FR657455D A FR 657455DA FR 657455 A FR657455 A FR 657455A
Authority
FR
France
Prior art keywords
foils
retainer
punch
punch foils
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
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.)
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 FR657455A publication Critical patent/FR657455A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR657455D 1928-01-14 1928-07-12 Retainer for punch foils Expired FR657455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US657455XA 1928-01-14 1928-01-14

Publications (1)

Publication Number Publication Date
FR657455A true FR657455A (en) 1929-05-23

Family

ID=22064818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR657455D Expired FR657455A (en) 1928-01-14 1928-07-12 Retainer for punch foils

Country Status (1)

Country Link
FR (1) FR657455A (en)

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