GB1333265A - Heat-retaining tubes - Google Patents

Heat-retaining tubes

Info

Publication number
GB1333265A
GB1333265A GB5015370A GB5015370A GB1333265A GB 1333265 A GB1333265 A GB 1333265A GB 5015370 A GB5015370 A GB 5015370A GB 5015370 A GB5015370 A GB 5015370A GB 1333265 A GB1333265 A GB 1333265A
Authority
GB
United Kingdom
Prior art keywords
tubes
tube
heat
outer tube
oct
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
GB5015370A
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.)
Achilles Corp
Original Assignee
Achilles Corp
Kohkoku Chemical Industry Co Ltd
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 Achilles Corp, Kohkoku Chemical Industry Co Ltd filed Critical Achilles Corp
Publication of GB1333265A publication Critical patent/GB1333265A/en
Expired legal-status Critical Current

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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1228—Joining preformed parts by the expanding material
    • B29C44/1242—Joining preformed parts by the expanding material the preformed parts being concentric
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Thermal Insulation (AREA)

Abstract

1333265 Pipes, insulation; thermal insulation KOHKOKU KAGAKU KOGYO KK 22 Oct 1970 [22 Oct 1969 12 Nov 1969] 50153/70 Headings F2P and F2X A heat-retaining tube comprising inner and outer tubes and a heat-insulating layer between the tubes is made by supporting the inner tube within the outer tube and maintaining the gap between the tubes uniform by means of a plurality of positioning devices, and then introducing a foaming synthetic resin into the gap. Figs. 2, 3, 4 show positioning devices 2(21), 2(22), 2(23), 2(23<SP>1</SP>) attached to the inner tube 3 before insertion into the outer tube. Figs. 6 and 7 (not shown) relate to supporting three inner tubes in an outer tube. A mandrel may be introduced into the inner tube or tubes and may engage with plugs sealing off the ends of the outer tube. In examples the tubes are made of polyvinyl chloride.
GB5015370A 1969-10-22 1970-10-22 Heat-retaining tubes Expired GB1333265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8405969 1969-10-22

Publications (1)

Publication Number Publication Date
GB1333265A true GB1333265A (en) 1973-10-10

Family

ID=13819907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5015370A Expired GB1333265A (en) 1969-10-22 1970-10-22 Heat-retaining tubes

Country Status (1)

Country Link
GB (1) GB1333265A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232221A (en) * 1989-05-25 1990-12-05 Bakelittfab As Method for producing long, insulated pipes in the form of a sandwich construction.
GR20150100440A (en) * 2015-10-13 2017-07-03 Αναστασιος Θεοφιλου Ριζοπουλος Pre-insulated tube with external insulation sleeve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232221A (en) * 1989-05-25 1990-12-05 Bakelittfab As Method for producing long, insulated pipes in the form of a sandwich construction.
GB2232221B (en) * 1989-05-25 1993-11-03 Bakelittfab As Pipe insulation method
GR20150100440A (en) * 2015-10-13 2017-07-03 Αναστασιος Θεοφιλου Ριζοπουλος Pre-insulated tube with external insulation sleeve
GR1009859B (en) * 2015-10-13 2020-11-10 Αναστασιος Θεοφιλου Ριζοπουλος Pre-insulated tube with external insulation sleeve

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee