CH387282A - Method and device for increasing the compressive strength of a transversely grooved plastic pipe - Google Patents

Method and device for increasing the compressive strength of a transversely grooved plastic pipe

Info

Publication number
CH387282A
CH387282A CH836460A CH836460A CH387282A CH 387282 A CH387282 A CH 387282A CH 836460 A CH836460 A CH 836460A CH 836460 A CH836460 A CH 836460A CH 387282 A CH387282 A CH 387282A
Authority
CH
Switzerland
Prior art keywords
increasing
compressive strength
plastic pipe
transversely grooved
grooved plastic
Prior art date
Application number
CH836460A
Other languages
German (de)
Inventor
Zieg Wilhelm
Original Assignee
Fraenk Isolierrohr & Metall
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 Fraenk Isolierrohr & Metall filed Critical Fraenk Isolierrohr & Metall
Publication of CH387282A publication Critical patent/CH387282A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22—Corrugating
    • B29C53/30—Corrugating of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/18—Pleated or corrugated hoses
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C19/00—Decimal-point mechanisms; Analogous mechanisms for non-decimal notations
    • G06C19/04—Devices for printing the point

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
CH836460A 1960-04-23 1960-07-21 Method and device for increasing the compressive strength of a transversely grooved plastic pipe CH387282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF31074A DE1133876B (en) 1960-04-23 1960-04-23 Device for reducing the distance between the ribs of a transversely grooved plastic pipe

Publications (1)

Publication Number Publication Date
CH387282A true CH387282A (en) 1965-01-31

Family

ID=7094034

Family Applications (1)

Application Number Title Priority Date Filing Date
CH836460A CH387282A (en) 1960-04-23 1960-07-21 Method and device for increasing the compressive strength of a transversely grooved plastic pipe

Country Status (6)

Country Link
BE (1) BE595303A (en)
CH (1) CH387282A (en)
DE (1) DE1133876B (en)
FR (1) FR1262530A (en)
LU (1) LU38996A1 (en)
NL (3) NL254502A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2347086A (en) * 1942-05-06 1944-04-18 Us Rubber Co Tube corrugating machine
US2712157A (en) * 1952-05-22 1955-07-05 Berns Mfg Corp Method and apparatus for forming corrugated tubing
US2866230A (en) * 1956-02-24 1958-12-30 Pullman Vacuum Cleaner Corp Corrugated rubber tubing and its production

Also Published As

Publication number Publication date
NL122913C (en)
FR1262530A (en) 1961-05-26
DE1133876B (en) 1962-07-26
BE595303A (en)
LU38996A1 (en) 1960-09-26
NL122413C (en)
NL254502A (en)

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