US20100283173A1 - Method and apparatus for extrusion of thermoplastic handrail - Google Patents

Method and apparatus for extrusion of thermoplastic handrail Download PDF

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Publication number
US20100283173A1
US20100283173A1 US12/677,458 US67745808A US2010283173A1 US 20100283173 A1 US20100283173 A1 US 20100283173A1 US 67745808 A US67745808 A US 67745808A US 2010283173 A1 US2010283173 A1 US 2010283173A1
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US
United States
Prior art keywords
extrudate
fabric
thermoplastic material
die assembly
handrail
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.)
Abandoned
Application number
US12/677,458
Other languages
English (en)
Inventor
Andrew Oliver Kenny
Douglas James Weathrall
Viqar Haider
Ronald Harold Ball
Alexander Stuart Caunce
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.)
EHC Canada Inc
Original Assignee
EHC Canada Inc
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 EHC Canada Inc filed Critical EHC Canada Inc
Priority to US12/677,458 priority Critical patent/US20100283173A1/en
Assigned to EHC CANADA, INC. reassignment EHC CANADA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KENNY, ANDREW OLIVER, MR., CAUNCE, ALEXANDER STUART, MR., BALL, RONALD HAROLD, MR., HAIDER, VIQAR, MR., WEATHERALL, DOUGLAS JAMES, MR.
Publication of US20100283173A1 publication Critical patent/US20100283173A1/en
Priority to US13/593,859 priority patent/US9579839B2/en
Priority to US15/964,134 priority patent/US10940625B2/en
Abandoned legal-status Critical Current

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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
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    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3029—Handgrips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/46—Knobs or handles, push-buttons, grips
    • B29L2031/463—Grips, handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Escalators And Moving Walkways (AREA)
US12/677,458 2007-09-10 2008-09-10 Method and apparatus for extrusion of thermoplastic handrail Abandoned US20100283173A1 (en)

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US13/593,859 US9579839B2 (en) 2007-09-10 2012-08-24 Apparatus for extrusion of thermoplastic handrail
US15/964,134 US10940625B2 (en) 2007-09-10 2018-04-27 Method and apparatus for extrusion of thermoplastic handrail

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US97115207P 2007-09-10 2007-09-10
PCT/CA2008/001596 WO2009033270A1 (fr) 2007-09-10 2008-09-10 Procédé et appareil d'extrusion d'une main courante en matière thermoplastique
US12/677,458 US20100283173A1 (en) 2007-09-10 2008-09-10 Method and apparatus for extrusion of thermoplastic handrail

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EP (1) EP2190644B1 (fr)
JP (2) JP5770473B2 (fr)
KR (2) KR101571996B1 (fr)
CN (1) CN101855059B (fr)
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