FR2189137B1 - - Google Patents

Info

Publication number
FR2189137B1
FR2189137B1 FR7222355A FR7222355A FR2189137B1 FR 2189137 B1 FR2189137 B1 FR 2189137B1 FR 7222355 A FR7222355 A FR 7222355A FR 7222355 A FR7222355 A FR 7222355A FR 2189137 B1 FR2189137 B1 FR 2189137B1
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
FR7222355A
Other languages
French (fr)
Other versions
FR2189137A1 (it
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.)
BENICHOU MARCEL FR
Original Assignee
BENICHOU MARCEL FR
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 BENICHOU MARCEL FR filed Critical BENICHOU MARCEL FR
Priority to FR7222355A priority Critical patent/FR2189137B1/fr
Publication of FR2189137A1 publication Critical patent/FR2189137A1/fr
Application granted granted Critical
Publication of FR2189137B1 publication Critical patent/FR2189137B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
    • B21D9/03—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR7222355A 1972-06-21 1972-06-21 Expired FR2189137B1 (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7222355A FR2189137B1 (it) 1972-06-21 1972-06-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7222355A FR2189137B1 (it) 1972-06-21 1972-06-21

Publications (2)

Publication Number Publication Date
FR2189137A1 FR2189137A1 (it) 1974-01-25
FR2189137B1 true FR2189137B1 (it) 1974-12-27

Family

ID=9100551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7222355A Expired FR2189137B1 (it) 1972-06-21 1972-06-21

Country Status (1)

Country Link
FR (1) FR2189137B1 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4024936C2 (de) * 1990-08-06 1994-07-21 Eugen Heim Verfahren und Vorrichtung zum Biegen von Doppelwandrohren

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1654697A (en) * 1925-10-17 1928-01-03 Adolph Mueller Pipe-bending mandrel
GB470426A (en) * 1936-02-15 1937-08-16 Leif Kielland Improvements in or relating to bending metal tubes and like hollow bodies
GB845241A (en) * 1957-12-02 1960-08-17 Gen Electric Co Ltd Improvements in or relating to waveguides and methods of bending waveguides
NL110288C (it) * 1961-11-03

Also Published As

Publication number Publication date
FR2189137A1 (it) 1974-01-25

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Legal Events

Date Code Title Description
ST Notification of lapse