• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A plastic pipe of a thermoplastic material, such as polyvinylchloride provided on its outside with a resilient sealing body of a polyurethane foam plastic, which has been foamed onto said outside and a layer of thermosetting resin with electrically conducting particles being between said body and the plastic pipe in order to ensure a proper conduction, the foam plastic body having a closed surface being integral with the foam plastic body.
    公开号:SU810090A3
    申请号:SU772488051
    申请日:1977-05-20
    公开日:1981-02-28
    发明作者:Графманн Юрген
    申请人:Вавин Б.В. (Фирма)；
    IPC主号:
    专利说明:

    (54) PLASTIC PIPE AND METHOD FOR ITS MANUFACTURE
    The plastic pipe consists of the pipe itself & ii 1, with an elastic sealing body 2 installed on it, an electrically conductive surface layer 3 and a protective layer 4.
    The manufacture of the plastic tube is carried out as follows.
    The pipe 1 is immersed in a liquid resinous composition containing electrically conductive carbon particles, in particular carbon black.
    This composition can be diluted with a solvent. The plastic pipe 1 has an outside elastic sealing body 2 made of polyurethane foam with a dense or non-porous surface layer, or a protective layer 4. At the outer surface of the elastic sealing body 2 at least two corrugations are made, which are separated by one another from the other.
    The elastic sealing body 2 is made by filling the space between the pipe 1 covered with an electrically conductive surface layer 3 and a mold (not shown), the polyurethane composition is filled with a foamed composition.
    The thermoreact resin used to form the protective layer 4 is modified to adhere to the electrically conductive surface layer 3.
    Due to the reliable adhesion of the protective layer 4 to the electrically conducting surface layer 3, the pipe 1 can be introduced into the well 5 without the use of test means. The elastic sealing body 2 is in time tightly in contact with the wall of the well 5.
    To obtain an elastic conductive sealing body 2, a polyurethane mixture containing soot particles can be foamed.
    It is also possible to wind around the elastic sealing body 2 a fabric 6 impregnated with a thermosetting resinous composition containing soot particles. Fabric ends 6
    may be located on the surface of the electrically conductive surface layer 3.
    权利要求:
    Claims (3)
    [1]
    1. A plastic tube with an elastic sealing body, characterized in that, in order to increase the reliability of the pipe, an electrically conductive surface layer of thermosetting resin with the addition of electrically conductive carbon particles is applied to the outer surface of the pipe, and an elastic sealing body is installed on the pipeline and covered with a protective electrically conductive surface layer containing electrically conductive carbon particles.
    [2]
    2.Plastic tube according to claim 1, wherein the electrically conductive soot particles are used as the electrically conductive carbon particles, and the elastic sealing body itself is made of foam plastic, for example, polyurethane ..
    [3]
    3. Method for manufacturing a plastic pipe according to claims. 1 and 2, so that the pipe is first covered with a layer of thermosetting resin containing electrically conductive carbon particles, then the pipe is enclosed in a form, after the tero space formed between the form and the external surface of the pipe with the surface a layer is filled with a foaming plastic foamed composition so that at least two corrugations form on the outer surface of the elastic sealing body.
    Priority points:
    05/21/76 in paragraphs 1 and 2;
    11/26/76 under item 3.
    Information sources,
    taken into account in the examination.
    1. The UK patent number 1273932, cd. F 2 About pub. 1972.
    2. Patent of Great Britain No. 1260970, cl. F 2 0, pub. 1972.
    (Pi / e. 2
    (rig 5
    类似技术:
    公开号 | 公开日 | 专利标题
    SU810090A3|1981-02-28|Plastic tube and its manufactiring
    US3652340A|1972-03-28|Apparatus for and method of forming post seal for lead-acid cell
    GB1522236A|1978-08-23|Tubular structure for conveying fluids
    SE7710775L|1978-04-05|INSULATED TUBE WITH SIGNIFICANT DIAMETER
    US6676441B1|2004-01-13|Housing for an electrical device
    JPS5530148A|1980-03-03|Organic electrolyte cell
    JPS537763A|1978-01-24|Method of producing tube joint formed with synthetic resin inside layer
    US2415490A|1947-02-11|Float
    JPS52138572A|1977-11-18|Method of repairing pipe made of thermoplastic synthetic resin
    JPS5648103A|1981-05-01|Resin molded coil
    JPS63302037A|1988-12-08|Hose
    GB1253360A|1971-11-10|Improvements in or relating to electrical insulators
    JPS5380818A|1978-07-17|Corrosion-resisting pipe and its manufacturing process
    JPS56131A|1981-01-06|Manufacture of eaves-gutter joint
    JPH0237619A|1990-02-07|Environment-resistant cable
    FR2339111A1|1977-08-19|Guide bush of composite material - has smooth outside surface of non metallic material riding on central axis
    JPS58153621A|1983-09-12|Manufacture of foamed resilient sealing material
    JPS5536737A|1980-03-14|Float for liquid-surface meter
    JPH03244891A|1991-10-31|Resin-made filler pipe for automobile
    US3772109A|1973-11-13|Seal and closure for ion-selective electrode
    JPS5430260A|1979-03-06|Production of foaming granules of themoplastic resin
    CN1004747B|1989-07-05|Printed circuit board unit
    JPS5788666A|1982-06-02|Manufacture of lid body for sealed cylindrical storage battery
    JPS5339552A|1978-04-11|Manufacturing method of heat-insulating pipe
    JPS58112246A|1983-07-04|Manufacturing method for organic solvent battery
    同族专利:
    公开号 | 公开日
    ES458874A1|1978-07-16|
    US4193105A|1980-03-11|
    FR2392308A1|1978-12-22|
    FR2392308B1|1983-03-18|
    GB1579670A|1980-11-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2890724A|1955-12-19|1959-06-16|Jr Ted Kennedy|Casing spacer|
    US3064073A|1960-07-27|1962-11-13|Du Pont|Insulated electrical conductor|
    US3394207A|1963-06-14|1968-07-23|Andersen Ege|Method of casting foam insulation for an elongated member|
    US3359351A|1965-10-18|1967-12-19|Richard B Bender|Method of applying insulation coating for pipe|
    US3385367A|1966-12-07|1968-05-28|Kollsman Paul|Sealing device for perforated well casing|
    US3684816A|1971-06-15|1972-08-15|Ite Imperial Corp|Cooling system for foam insulated bus|
    CH537633A|1971-10-29|1973-05-31|Bbc Brown Boveri & Cie|Electrical insulating body made of porous foam plastic|
    DE7308162U|1973-03-03|1973-08-23|Bode D & Co|Electrically conductive and flame-retardant plastic pipe|
    CA995017A|1973-11-07|1976-08-17|Ernest I. Wilson|Pipeline retard, support and protection system and method|
    US3963856A|1974-11-25|1976-06-15|Steward Plastics, Inc.|Flexible, corrugated, plastic tubing having conductive helical bead|US4697300A|1986-10-08|1987-10-06|Warlop Stephen M|Antistatic vacuum cleaner and method|
    US5458438A|1991-09-06|1995-10-17|Foam Enterprises, Inc.|Insulating pipe spacers|
    US5855036A|1996-10-28|1999-01-05|Krock; Richard P.|Static dissipative vacuum wand|
    US8201636B2|2008-02-19|2012-06-19|Weatherford/Lamb, Inc.|Expandable packer|
    US9551201B2|2008-02-19|2017-01-24|Weatherford Technology Holdings, Llc|Apparatus and method of zonal isolation|
    PL2338658T3|2009-12-23|2015-02-27|Hauff Technik Gmbh & Co Kg|Method for manufacturing and use a seal|
    GB2535145B|2015-02-03|2017-10-18|Acergy France SAS|Termination bulkheads for subsea pipe-in-pipe systems|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL7605520A|NL7605520A|1976-05-21|1976-05-21|TUBE FITTED WITH EXTERNAL SEALING BODY.|
    DE19762653698|DE2653698C3|1976-11-26|1976-11-26|
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