Invention Application
WO2005047755A1 CURED IN PLACE LINER WITH EVERTED OUTER IMPERMEABLE LAYER AND METHOD OF MANUFACTURE
审中-公开
固定在具有外部不可重复层的地板衬里和制造方法中
- Patent Title: CURED IN PLACE LINER WITH EVERTED OUTER IMPERMEABLE LAYER AND METHOD OF MANUFACTURE
- Patent Title (中): 固定在具有外部不可重复层的地板衬里和制造方法中
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Application No.: PCT/US2004/036633Application Date: 2004-11-03
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Publication No.: WO2005047755A1Publication Date: 2005-05-26
- Inventor: DRIVER, Franklin, Thomas , WANG, Weiping
- Applicant: INSITUFORM (NETHERLANDS) B.V. , INSITUFORM HOLDINGS (UK) LIMITED , INA ACQUISITION CORP. , DRIVER, Franklin, Thomas , WANG, Weiping
- Applicant Address: West Blaak 6, Third Floor, NL-3012 NJ Rotterdam NL
- Assignee: INSITUFORM (NETHERLANDS) B.V.,INSITUFORM HOLDINGS (UK) LIMITED,INA ACQUISITION CORP.,DRIVER, Franklin, Thomas,WANG, Weiping
- Current Assignee: INSITUFORM (NETHERLANDS) B.V.,INSITUFORM HOLDINGS (UK) LIMITED,INA ACQUISITION CORP.,DRIVER, Franklin, Thomas,WANG, Weiping
- Current Assignee Address: West Blaak 6, Third Floor, NL-3012 NJ Rotterdam NL
- Agency: WOLFSON, Michael, I.
- Priority: US10/704,501 20031107
- Main IPC: F16L55/16
- IPC: F16L55/16
Abstract:
A resin impregnated cured in place liner having an everted outer impermeable coating is provided. A roll of a continuous length of resin impregnable material is formed into a tube. An impermeable film or wrapping is formed into a tube about a tubular former, sealed and continuously everted about the inner tubular member travelling in an opposite direction so that the everted wrapping envelopes the inner tubular member. Alternatively, the inner tubular member may be passed into a stuffer tube having an impermeable tube thereon that is everted onto the moving tubular member to encapsulate the inner tubular member. The inner tubular member may be passed through an open resin impregnation tank to impregnate the impregnable material prior to everting the outer layer thereon. The inner tubular member may have an inner layer of impermeable material bonded thereto. It may be formed into a tube with the impermeable layer on the outside and continuously everted to place the impermeable layer on the inside of the tube.
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