FR2721374A1 - Tube à deux parois co-envirolées. - Google Patents

Tube à deux parois co-envirolées. Download PDF

Info

Publication number
FR2721374A1
FR2721374A1 FR9409234A FR9409234A FR2721374A1 FR 2721374 A1 FR2721374 A1 FR 2721374A1 FR 9409234 A FR9409234 A FR 9409234A FR 9409234 A FR9409234 A FR 9409234A FR 2721374 A1 FR2721374 A1 FR 2721374A1
Authority
FR
France
Prior art keywords
strip
double
tube
sheet metal
folded sheet
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.)
Granted
Application number
FR9409234A
Other languages
English (en)
French (fr)
Other versions
FR2721374B1 (enrdf_load_stackoverflow
Inventor
Pierre Georges Nachbaur
Jean Fernand Cartier
Francois Denis Taveau
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.)
Alstom Power Heat Exchange SA
Original Assignee
Alstom Power Heat Exchange SA
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 FR9407424A external-priority patent/FR2721373A1/fr
Application filed by Alstom Power Heat Exchange SA filed Critical Alstom Power Heat Exchange SA
Priority to FR9409234A priority Critical patent/FR2721374A1/fr
Publication of FR2721374A1 publication Critical patent/FR2721374A1/fr
Application granted granted Critical
Publication of FR2721374B1 publication Critical patent/FR2721374B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/17—Rigid pipes obtained by bending a sheet longitudinally and connecting the edges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)
FR9409234A 1994-06-17 1994-07-26 Tube à deux parois co-envirolées. Granted FR2721374A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9409234A FR2721374A1 (fr) 1994-06-17 1994-07-26 Tube à deux parois co-envirolées.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407424A FR2721373A1 (fr) 1994-06-17 1994-06-17 Tube à deux parois co-envirolées.
FR9409234A FR2721374A1 (fr) 1994-06-17 1994-07-26 Tube à deux parois co-envirolées.

Publications (2)

Publication Number Publication Date
FR2721374A1 true FR2721374A1 (fr) 1995-12-22
FR2721374B1 FR2721374B1 (enrdf_load_stackoverflow) 1997-02-21

Family

ID=26231238

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9409234A Granted FR2721374A1 (fr) 1994-06-17 1994-07-26 Tube à deux parois co-envirolées.

Country Status (1)

Country Link
FR (1) FR2721374A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8640740B2 (en) 2006-08-01 2014-02-04 Afl Telecommunications Llc Embedded metallic tubes with compression fit and method for manufacturing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE732527C (de) * 1938-02-28 1943-03-06 Mecano Spezialartikel Fuer Kra Nahtausbildung bei zweischichtigem, aus Metallstreifen gebogenem Verbundrohr
US2468493A (en) * 1945-07-16 1949-04-26 Arrowhead Rubber Company Duct
GB930214A (en) * 1961-01-30 1963-07-03 Campbell Gifford & Morton Ltd Improvements relating to metal tubing and its manufacture
US3311134A (en) * 1963-12-30 1967-03-28 Darwin R Howard Composite tubular products and method of making same
US4558721A (en) * 1982-09-28 1985-12-17 Apx Group Inc. Double walled tubing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE732527C (de) * 1938-02-28 1943-03-06 Mecano Spezialartikel Fuer Kra Nahtausbildung bei zweischichtigem, aus Metallstreifen gebogenem Verbundrohr
US2468493A (en) * 1945-07-16 1949-04-26 Arrowhead Rubber Company Duct
GB930214A (en) * 1961-01-30 1963-07-03 Campbell Gifford & Morton Ltd Improvements relating to metal tubing and its manufacture
US3311134A (en) * 1963-12-30 1967-03-28 Darwin R Howard Composite tubular products and method of making same
US4558721A (en) * 1982-09-28 1985-12-17 Apx Group Inc. Double walled tubing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8640740B2 (en) 2006-08-01 2014-02-04 Afl Telecommunications Llc Embedded metallic tubes with compression fit and method for manufacturing the same

Also Published As

Publication number Publication date
FR2721374B1 (enrdf_load_stackoverflow) 1997-02-21

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Legal Events

Date Code Title Description
ST Notification of lapse