FR934809A - Tube à ailettes - Google Patents

Tube à ailettes

Info

Publication number
FR934809A
FR934809A FR934809DA FR934809A FR 934809 A FR934809 A FR 934809A FR 934809D A FR934809D A FR 934809DA FR 934809 A FR934809 A FR 934809A
Authority
FR
France
Prior art keywords
finned tube
finned
tube
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.)
CALUMET AND HECLA CONS COPPER
Original Assignee
CALUMET AND HECLA CONS COPPER
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 CALUMET AND HECLA CONS COPPER filed Critical CALUMET AND HECLA CONS COPPER
Application granted granted Critical
Publication of FR934809A publication Critical patent/FR934809A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls with helical guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR934809D 1945-10-01 1946-09-19 Tube à ailettes Expired FR934809A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US934809XA 1945-10-01 1945-10-01

Publications (1)

Publication Number Publication Date
FR934809A true FR934809A (fr) 1948-06-02

Family

ID=22239178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR934809D Expired FR934809A (fr) 1945-10-01 1946-09-19 Tube à ailettes

Country Status (1)

Country Link
FR (1) FR934809A (fr)

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