DE68902423D1 - SCREW SEAM PIPES. - Google Patents

SCREW SEAM PIPES.

Info

Publication number
DE68902423D1
DE68902423D1 DE8989305279T DE68902423T DE68902423D1 DE 68902423 D1 DE68902423 D1 DE 68902423D1 DE 8989305279 T DE8989305279 T DE 8989305279T DE 68902423 T DE68902423 T DE 68902423T DE 68902423 D1 DE68902423 D1 DE 68902423D1
Authority
DE
Germany
Prior art keywords
seam pipes
screw seam
screw
pipes
seam
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 - Fee Related
Application number
DE8989305279T
Other languages
German (de)
Other versions
DE68902423T2 (en
Inventor
Tor Anders Jensen
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.)
Spiro Machines SA
Original Assignee
Spiro Machines 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
Application filed by Spiro Machines SA filed Critical Spiro Machines SA
Application granted granted Critical
Publication of DE68902423D1 publication Critical patent/DE68902423D1/en
Publication of DE68902423T2 publication Critical patent/DE68902423T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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 OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/121—Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/124—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Gasket Seals (AREA)
  • Exhaust Silencers (AREA)
DE1989602423 1988-05-25 1989-05-24 SCREW SEAM PIPES. Expired - Fee Related DE68902423T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888812370A GB8812370D0 (en) 1988-05-25 1988-05-25 Improvements in helically formed tubing

Publications (2)

Publication Number Publication Date
DE68902423D1 true DE68902423D1 (en) 1992-09-17
DE68902423T2 DE68902423T2 (en) 1993-02-04

Family

ID=10637508

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989602423 Expired - Fee Related DE68902423T2 (en) 1988-05-25 1989-05-24 SCREW SEAM PIPES.

Country Status (7)

Country Link
EP (1) EP0343973B1 (en)
AU (1) AU3685189A (en)
CA (1) CA1337963C (en)
DE (1) DE68902423T2 (en)
ES (1) ES2034630T3 (en)
GB (1) GB8812370D0 (en)
WO (1) WO1989011351A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6003220A (en) * 1995-03-08 1999-12-21 Protol A. G. Method and apparatus for producing helically wound lock-seam tubing
SE507901C2 (en) * 1995-03-08 1998-07-27 Protol Ag Method and apparatus for making spiral-folded tubes, and such spiral-folded tubes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE57341C (en) * E. zimmermann in Berlin N., Uferstr. 6a 1 Tr Device for the production of tubes from a smooth sheet metal strip by winding it together in a helical manner
GB1599379A (en) * 1978-05-31 1981-09-30 Spiro Investment Sa Tube-forming machines
US4763830A (en) * 1986-12-22 1988-08-16 Pacific Roller Die Co., Inc. Method for welding ribbed pipe

Also Published As

Publication number Publication date
WO1989011351A1 (en) 1989-11-30
EP0343973A1 (en) 1989-11-29
EP0343973B1 (en) 1992-08-12
AU3685189A (en) 1989-12-12
CA1337963C (en) 1996-01-23
DE68902423T2 (en) 1993-02-04
ES2034630T3 (en) 1993-04-01
GB8812370D0 (en) 1988-06-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee