NO135166B - - Google Patents

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Info

Publication number
NO135166B
NO135166B NO239/72A NO23972A NO135166B NO 135166 B NO135166 B NO 135166B NO 239/72 A NO239/72 A NO 239/72A NO 23972 A NO23972 A NO 23972A NO 135166 B NO135166 B NO 135166B
Authority
NO
Norway
Prior art keywords
atmosphere
casing
conductor
substance
detector
Prior art date
Application number
NO239/72A
Other languages
English (en)
Norwegian (no)
Other versions
NO135166C (no
Inventor
A O Ekroos
M K Merikoski
B E O Levander
Original Assignee
Nokia Oy Ab
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 Nokia Oy Ab filed Critical Nokia Oy Ab
Publication of NO135166B publication Critical patent/NO135166B/no
Publication of NO135166C publication Critical patent/NO135166C/no

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
    • B21C37/12—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
    • 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
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/121—Making tubes or metal hoses with helically arranged seams with seams being neither welded nor soldered
    • 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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
NO239/72A 1971-02-09 1972-01-31 Maskin for fremstilling av spirals¦m-r¦r av et kontinuerlig metallb}nd NO135166C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI344/71A FI57221C (fi) 1971-02-09 1971-02-09 Foerstyvat med falssoem foersett av ett metallband tillverkat spiralsoemmat roer och maskin foer tillverkning av dylikt roer

Publications (2)

Publication Number Publication Date
NO135166B true NO135166B (enExample) 1976-11-15
NO135166C NO135166C (no) 1977-08-30

Family

ID=8503970

Family Applications (1)

Application Number Title Priority Date Filing Date
NO239/72A NO135166C (no) 1971-02-09 1972-01-31 Maskin for fremstilling av spirals¦m-r¦r av et kontinuerlig metallb}nd

Country Status (6)

Country Link
US (1) US3868840A (enExample)
DE (1) DE2205247C2 (enExample)
FI (1) FI57221C (enExample)
FR (1) FR2124587B1 (enExample)
NO (1) NO135166C (enExample)
SE (1) SE388368B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060016063A1 (en) * 2004-07-26 2006-01-26 Gharib Mohamed T Lockseaming process and apparatus for the same
US7669448B1 (en) 2005-07-20 2010-03-02 Mohamed Gharib Lockseaming process and apparatus for same
DE102013013735B4 (de) * 2013-08-21 2018-12-27 Fritz Hahn Gmbh & Co. Kg Vorrichtung und Verfahren zur Herstellung eines Wickelfalzrohres sowie ein mit der Vorrichtung und nach dem Verfahren aus einem profilierten Metallband hergestelltes Wickelfalzrohr

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1761980A (en) * 1927-07-05 1930-06-03 Bundy Tubing Co Method of making finned tubing
DE649079C (de) * 1932-01-27 1937-08-14 Friedrich Beckert Aus schraubenfoermig gewickeltem Metallband bestehendes biegsames Rohr zur Verlegung elektrischer Leitungen
CH279689A (de) * 1949-11-30 1951-12-15 Oerlikon Buehrle Ag Verfahren und Vorrichtung zur Herstellung biegsamer Rohre und nach dem Verfahren hergestelltes Rohr.
US2841183A (en) * 1955-06-09 1958-07-01 Wiremold Co Collapsible tubing with protective rib
DE2020547A1 (de) * 1969-05-12 1970-11-26 Vulcan Australia Wendelrohr

Also Published As

Publication number Publication date
DE2205247C2 (de) 1985-05-15
US3868840A (en) 1975-03-04
FI57221B (fi) 1980-03-31
FR2124587B1 (enExample) 1975-03-21
DE2205247A1 (enExample) 1972-09-07
FI57221C (fi) 1980-07-10
SE388368B (sv) 1976-10-04
FR2124587A1 (enExample) 1972-09-22
NO135166C (no) 1977-08-30

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