GB1167551A - Heaters and Methods of Making Same - Google Patents

Heaters and Methods of Making Same

Info

Publication number
GB1167551A
GB1167551A GB4915566A GB4915566A GB1167551A GB 1167551 A GB1167551 A GB 1167551A GB 4915566 A GB4915566 A GB 4915566A GB 4915566 A GB4915566 A GB 4915566A GB 1167551 A GB1167551 A GB 1167551A
Authority
GB
United Kingdom
Prior art keywords
web
sleeve
extrusion head
passing
rollers
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
GB4915566A
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1167551A publication Critical patent/GB1167551A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • F24H1/105—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance formed by the tube through which the fluid flows
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/027—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,167,551. Coating cores by extrusion. TEXAS INSTRUMENTS Inc. 2 Nov., 1966 [1 Dec., 1965], No. 49155/66. Heading B5A. [Also in Divisions F2, H1 and H5] A tubular resistance heater 11 is made by moving a tube 12 of polytetrafluoroethylene or polyethylene into an extrusion head 14 at a speed of 25 ft./min., extruding at 450‹ F. a sleeve 16 of carbon black filled cross-linked polyethylene, helically winding about the tube two strips 24, 26 of perforated copper foil or wire mesh which are pressed into the sleeve 16 by pairs of rollers 28, 29, and 30, 31, heated to 250‹ F., and then passing the assembly through an extrusion head 32 to extrude a polyethylene sleeve 20 at 350‹ F. about strips 24, 26, and sleeve 16. A flat resistance heater is made by extruding a web 42 of resistance material from an extrusion head 40 at 350‹ F. and travelling at 25 ft./min., feeding perforated strip 50, 52, between die members 54 and web 42 to bend the strip into clamping engagement with the edges of web 42, passing the assembly through rollers 55, 56, 57, 58 at 300‹ F., and then passing through extrusion head 60 at 300‹ F. to extrude an outer polythene jacket 62. A further heater comprises a web 70 of resistance material preheated to 300-500‹ F., perforated strip 80, 82, pressed into the web by heated rollers 73, 74, which reduce the heater thickness, and an outer extruded jacket 86.
GB4915566A 1965-12-01 1966-11-02 Heaters and Methods of Making Same Expired GB1167551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51085465A 1965-12-01 1965-12-01

Publications (1)

Publication Number Publication Date
GB1167551A true GB1167551A (en) 1969-10-15

Family

ID=24032476

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4915566A Expired GB1167551A (en) 1965-12-01 1966-11-02 Heaters and Methods of Making Same
GB2897869A Expired GB1168770A (en) 1965-12-01 1966-11-02 Self-Regulating Heaters.

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2897869A Expired GB1168770A (en) 1965-12-01 1966-11-02 Self-Regulating Heaters.

Country Status (4)

Country Link
DE (1) DE1565888A1 (en)
FR (1) FR1510940A (en)
GB (2) GB1167551A (en)
NL (1) NL6616002A (en)

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543314A1 (en) * 1974-09-27 1976-04-15 Raychem Corp LAYERED, SELF-REGULATING HEATING ELEMENTS
FR2391247A1 (en) * 1977-05-18 1978-12-15 Raychem Corp COMPOSITION OF ELECTRICALLY CONDUCTIVE POLYMERS FOR USE IN HEATING ELEMENTS
US4177446A (en) * 1975-12-08 1979-12-04 Raychem Corporation Heating elements comprising conductive polymers capable of dimensional change
US4223209A (en) * 1979-04-19 1980-09-16 Raychem Corporation Article having heating elements comprising conductive polymers capable of dimensional change
US4272471A (en) 1979-05-21 1981-06-09 Raychem Corporation Method for forming laminates comprising an electrode and a conductive polymer layer
US4314231A (en) 1980-04-21 1982-02-02 Raychem Corporation Conductive polymer electrical devices
US4315237A (en) 1978-12-01 1982-02-09 Raychem Corporation PTC Devices comprising oxygen barrier layers
US4327351A (en) 1979-05-21 1982-04-27 Raychem Corporation Laminates comprising an electrode and a conductive polymer layer
US4329726A (en) 1978-12-01 1982-05-11 Raychem Corporation Circuit protection devices comprising PTC elements
US4330703A (en) 1975-08-04 1982-05-18 Raychem Corporation Layered self-regulating heating article
US4426339A (en) 1976-12-13 1984-01-17 Raychem Corporation Method of making electrical devices comprising conductive polymer compositions
US4445026A (en) * 1979-05-21 1984-04-24 Raychem Corporation Electrical devices comprising PTC conductive polymer elements
US4459473A (en) * 1982-05-21 1984-07-10 Raychem Corporation Self-regulating heaters
US4521359A (en) * 1981-12-04 1985-06-04 Exxon Research & Engineering Co. Method of coextruding plastics to form a composite sheet
US4543474A (en) * 1979-09-24 1985-09-24 Raychem Corporation Layered self-regulating heating article
US4764664A (en) * 1976-12-13 1988-08-16 Raychem Corporation Electrical devices comprising conductive polymer compositions
US4866253A (en) * 1976-12-13 1989-09-12 Raychem Corporation Electrical devices comprising conductive polymer compositions
US4876440A (en) * 1976-12-13 1989-10-24 Raychem Corporation Electrical devices comprising conductive polymer compositions
JPH0613068A (en) * 1979-01-26 1994-01-21 Raychem Corp Battery
WO1997039461A1 (en) * 1996-04-12 1997-10-23 Littelfuse, Inc. Manufacturing methods for positive temperature coefficient materials
US5802709A (en) 1995-08-15 1998-09-08 Bourns, Multifuse (Hong Kong), Ltd. Method for manufacturing surface mount conductive polymer devices
US5849137A (en) 1995-08-15 1998-12-15 Bourns Multifuse (Hong Kong) Ltd. Continuous process and apparatus for manufacturing conductive polymer components
US6020808A (en) 1997-09-03 2000-02-01 Bourns Multifuse (Hong Kong) Ltd. Multilayer conductive polymer positive temperature coefficent device
US6172591B1 (en) 1998-03-05 2001-01-09 Bourns, Inc. Multilayer conductive polymer device and method of manufacturing same
US6228287B1 (en) 1998-09-25 2001-05-08 Bourns, Inc. Two-step process for preparing positive temperature coefficient polymer materials
US6236302B1 (en) 1998-03-05 2001-05-22 Bourns, Inc. Multilayer conductive polymer device and method of manufacturing same
US6242997B1 (en) 1998-03-05 2001-06-05 Bourns, Inc. Conductive polymer device and method of manufacturing same
US6429533B1 (en) 1999-11-23 2002-08-06 Bourns Inc. Conductive polymer device and method of manufacturing same
EP1138341A3 (en) * 2000-03-21 2003-08-13 FISHER & PAYKEL LIMITED Humidification apparatus
US7111624B2 (en) 2000-03-21 2006-09-26 Fisher & Paykel Healthcare Limited Apparatus for delivering humidified gases
US7120354B2 (en) 2000-03-21 2006-10-10 Fisher & Paykel Healthcare Limited Gases delivery conduit
US7588029B2 (en) 2000-03-21 2009-09-15 Fisher & Paykel Healthcare Limited Humidified gases delivery apparatus
NO20130602A1 (en) * 2013-04-30 2014-10-13 Christian Parmann Arrangement of a welding tape and manufacture of the same, construction of resistance wire for use in welding tape, a method of reinforcing a welding area between thermoplastic articles and applications of the welding tape.
US20160354573A1 (en) 2012-11-14 2016-12-08 Matthew Liam Buswell Zone heating for respiratory circuits
US10293121B2 (en) 2000-10-16 2019-05-21 Fisher & Paykel Healthcare Limited Apparatus used for the humidification of gases in medical procedures
US10751498B2 (en) 2014-03-17 2020-08-25 Fisher & Paykel Healthcare Limited Medical tubes for respiratory systems
US10814091B2 (en) 2013-10-24 2020-10-27 Fisher & Paykel Healthcare Limited System for delivery of respiratory gases
US10828482B2 (en) 2013-12-20 2020-11-10 Fisher & Paykel Healthcare Limited Humidification system connections
US10960167B2 (en) 2015-09-09 2021-03-30 Fisher & Paykel Healthcare Limited Zone heating for respiratory circuits
US11007340B2 (en) 2004-08-20 2021-05-18 Fisher & Paykel Healthcare Limited Apparatus for measuring properties of gases supplied to a patient
US11058844B2 (en) 2012-12-04 2021-07-13 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
US11311695B2 (en) 2016-12-22 2022-04-26 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
US11318270B2 (en) 2011-06-03 2022-05-03 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES454025A1 (en) * 1975-12-08 1977-11-16 Raychem Corp Expansible heater
FR2321815A1 (en) * 1976-08-03 1977-03-18 Raychem Corp Positive temperature coefficient heating element - uses secondary heater which supplies heat to element when part of element reaches switching temperature
DE2708504A1 (en) * 1977-02-26 1978-08-31 Raychem Corp Extensible sandwich construction electrical heating elements - for self-heating heat shrink sheathing for cable junction insulation
DE2832119A1 (en) * 1977-07-25 1979-02-08 Raychem Corp SELF-HEATABLE AND HEAT REPLACEMENT OBJECTIVE AND PROCESS FOR APPLYING A COVERING TO AN OBJECT
DE3730580C1 (en) * 1987-09-11 1989-02-23 Rheydt Kabelwerk Ag Thermal hose
FR2632475B1 (en) * 1988-06-01 1994-02-18 Electricite De France DEVICE FOR THE HOMOGENEOUS HEATING OF FLUIDS BY JOUL EFFECT
FR2666474B1 (en) * 1990-08-28 1992-11-06 De Stoutz Jean DEVICE FOR HEATING FLUIDS BY JOUL EFFECT.
KR920009260A (en) * 1990-10-22 1992-05-28 원본 미기재 U-shaped heating device and heating method using such device
CN1185230A (en) * 1995-05-10 1998-06-17 保险丝公司 PTC circuit protective device and method for mfg. same
AT406924B (en) * 1998-02-02 2000-10-25 Manfred Dr Elsaesser HEATING ELEMENT
PL342140A1 (en) 1998-02-02 2001-05-21 Elsaesser Manfred Plate-type heating element and application of such heating elements

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543314A1 (en) * 1974-09-27 1976-04-15 Raychem Corp LAYERED, SELF-REGULATING HEATING ELEMENTS
US4177376A (en) 1974-09-27 1979-12-04 Raychem Corporation Layered self-regulating heating article
US4330703A (en) 1975-08-04 1982-05-18 Raychem Corporation Layered self-regulating heating article
US4177446A (en) * 1975-12-08 1979-12-04 Raychem Corporation Heating elements comprising conductive polymers capable of dimensional change
US4876440A (en) * 1976-12-13 1989-10-24 Raychem Corporation Electrical devices comprising conductive polymer compositions
US4764664A (en) * 1976-12-13 1988-08-16 Raychem Corporation Electrical devices comprising conductive polymer compositions
US4426339A (en) 1976-12-13 1984-01-17 Raychem Corporation Method of making electrical devices comprising conductive polymer compositions
US4866253A (en) * 1976-12-13 1989-09-12 Raychem Corporation Electrical devices comprising conductive polymer compositions
FR2391247A1 (en) * 1977-05-18 1978-12-15 Raychem Corp COMPOSITION OF ELECTRICALLY CONDUCTIVE POLYMERS FOR USE IN HEATING ELEMENTS
US4315237A (en) 1978-12-01 1982-02-09 Raychem Corporation PTC Devices comprising oxygen barrier layers
US4329726A (en) 1978-12-01 1982-05-11 Raychem Corporation Circuit protection devices comprising PTC elements
JPH0613068A (en) * 1979-01-26 1994-01-21 Raychem Corp Battery
US4223209A (en) * 1979-04-19 1980-09-16 Raychem Corporation Article having heating elements comprising conductive polymers capable of dimensional change
US4327351A (en) 1979-05-21 1982-04-27 Raychem Corporation Laminates comprising an electrode and a conductive polymer layer
US4445026A (en) * 1979-05-21 1984-04-24 Raychem Corporation Electrical devices comprising PTC conductive polymer elements
US4272471A (en) 1979-05-21 1981-06-09 Raychem Corporation Method for forming laminates comprising an electrode and a conductive polymer layer
US4543474A (en) * 1979-09-24 1985-09-24 Raychem Corporation Layered self-regulating heating article
US4314231A (en) 1980-04-21 1982-02-02 Raychem Corporation Conductive polymer electrical devices
US4521359A (en) * 1981-12-04 1985-06-04 Exxon Research & Engineering Co. Method of coextruding plastics to form a composite sheet
US4459473A (en) * 1982-05-21 1984-07-10 Raychem Corporation Self-regulating heaters
US5849137A (en) 1995-08-15 1998-12-15 Bourns Multifuse (Hong Kong) Ltd. Continuous process and apparatus for manufacturing conductive polymer components
US5849129A (en) 1995-08-15 1998-12-15 Bourns Multifuse (Hong Kong) Ltd. Continuous process and apparatus for manufacturing conductive polymer components
US5802709A (en) 1995-08-15 1998-09-08 Bourns, Multifuse (Hong Kong), Ltd. Method for manufacturing surface mount conductive polymer devices
US5814264A (en) * 1996-04-12 1998-09-29 Littelfuse, Inc. Continuous manufacturing methods for positive temperature coefficient materials
WO1997039461A1 (en) * 1996-04-12 1997-10-23 Littelfuse, Inc. Manufacturing methods for positive temperature coefficient materials
US6020808A (en) 1997-09-03 2000-02-01 Bourns Multifuse (Hong Kong) Ltd. Multilayer conductive polymer positive temperature coefficent device
US6223423B1 (en) 1997-09-03 2001-05-01 Bourns Multifuse (Hong Kong) Ltd. Multilayer conductive polymer positive temperature coefficient device
US6172591B1 (en) 1998-03-05 2001-01-09 Bourns, Inc. Multilayer conductive polymer device and method of manufacturing same
US6236302B1 (en) 1998-03-05 2001-05-22 Bourns, Inc. Multilayer conductive polymer device and method of manufacturing same
US6242997B1 (en) 1998-03-05 2001-06-05 Bourns, Inc. Conductive polymer device and method of manufacturing same
US6228287B1 (en) 1998-09-25 2001-05-08 Bourns, Inc. Two-step process for preparing positive temperature coefficient polymer materials
US6429533B1 (en) 1999-11-23 2002-08-06 Bourns Inc. Conductive polymer device and method of manufacturing same
EP1138341A3 (en) * 2000-03-21 2003-08-13 FISHER & PAYKEL LIMITED Humidification apparatus
US9750917B2 (en) 2000-03-21 2017-09-05 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
EP1681072A2 (en) * 2000-03-21 2006-07-19 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
EP1681072A3 (en) * 2000-03-21 2006-08-02 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US7111624B2 (en) 2000-03-21 2006-09-26 Fisher & Paykel Healthcare Limited Apparatus for delivering humidified gases
US7120354B2 (en) 2000-03-21 2006-10-10 Fisher & Paykel Healthcare Limited Gases delivery conduit
US7146979B2 (en) 2000-03-21 2006-12-12 Fisher & Paykel Healthcare Limited Humidifier with parallel gas flow paths
EP1790370A1 (en) * 2000-03-21 2007-05-30 Fisher & Paykel Healthcare Limited Humidification apparatus
US7588029B2 (en) 2000-03-21 2009-09-15 Fisher & Paykel Healthcare Limited Humidified gases delivery apparatus
US8235041B2 (en) 2000-03-21 2012-08-07 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US8550072B2 (en) 2000-03-21 2013-10-08 Fisher & Paykel Healthcare Limited Apparatus for delivering humidified gases
US6918389B2 (en) 2000-03-21 2005-07-19 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US10525225B2 (en) 2000-03-21 2020-01-07 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US9555210B2 (en) 2000-03-21 2017-01-31 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
US11197967B2 (en) 2000-10-16 2021-12-14 Fisher & Paykel Healthcare Limited Apparatus used for the humidification of gases in medical procedures
US10293121B2 (en) 2000-10-16 2019-05-21 Fisher & Paykel Healthcare Limited Apparatus used for the humidification of gases in medical procedures
US11911564B2 (en) 2004-08-20 2024-02-27 Fisher & Paykel Healthcare Limited Apparatus for measuring properties of gases supplied to a patient
US11679224B2 (en) 2004-08-20 2023-06-20 Fisher & Paykel Healthcare Limited Apparatus for measuring properties of gases supplied to a patient
US11458273B2 (en) 2004-08-20 2022-10-04 Fisher & Paykel Healthcare Limited Apparatus for measuring properties of gases supplied to a patient
US11007340B2 (en) 2004-08-20 2021-05-18 Fisher & Paykel Healthcare Limited Apparatus for measuring properties of gases supplied to a patient
US11318270B2 (en) 2011-06-03 2022-05-03 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
US20160354573A1 (en) 2012-11-14 2016-12-08 Matthew Liam Buswell Zone heating for respiratory circuits
US10589050B2 (en) 2012-11-14 2020-03-17 Fisher & Paykel Healthcare Limited Zone heating for respiratory circuits
US12053587B2 (en) 2012-11-14 2024-08-06 Fisher & Paykel Healthcare Limited Zone heating for respiratory circuits
US11129954B2 (en) 2012-11-14 2021-09-28 Fisher & Paykel Healthcare Limited Zone heating for respiratory circuits
US11058844B2 (en) 2012-12-04 2021-07-13 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
NO20130602A1 (en) * 2013-04-30 2014-10-13 Christian Parmann Arrangement of a welding tape and manufacture of the same, construction of resistance wire for use in welding tape, a method of reinforcing a welding area between thermoplastic articles and applications of the welding tape.
US10814091B2 (en) 2013-10-24 2020-10-27 Fisher & Paykel Healthcare Limited System for delivery of respiratory gases
US10828482B2 (en) 2013-12-20 2020-11-10 Fisher & Paykel Healthcare Limited Humidification system connections
US11826538B2 (en) 2013-12-20 2023-11-28 Fisher & Paykel Healthcare Limited Humidification system connections
US10751498B2 (en) 2014-03-17 2020-08-25 Fisher & Paykel Healthcare Limited Medical tubes for respiratory systems
US10960167B2 (en) 2015-09-09 2021-03-30 Fisher & Paykel Healthcare Limited Zone heating for respiratory circuits
US11311695B2 (en) 2016-12-22 2022-04-26 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
US12076489B2 (en) 2016-12-22 2024-09-03 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture

Also Published As

Publication number Publication date
FR1510940A (en) 1968-01-26
GB1168770A (en) 1969-10-29
NL6616002A (en) 1967-06-02
DE1565888A1 (en) 1970-04-16

Similar Documents

Publication Publication Date Title
GB1167551A (en) Heaters and Methods of Making Same
GB1147330A (en) Precision sizing and sealing of tubing
ES418968A1 (en) Process and apparatus for the extrusion of coated skein-shaped profiles, preferably of thermoplastic synthetic resins
FR2093060A5 (en) Paint rollers - in which synthetic fur is welded onto extruded plastic tube
FR2111818B1 (en)
GB1390152A (en) Manufacturing flat cable
GB1359219A (en) Process and apparatus for the continuous production and/or covering of extruded sections
US3617415A (en) Method of making hollow reinforced bodies
US4140463A (en) Apparatus for producing articles of thermoplastic resin
DE69706136T2 (en) PLASTIC PIPE WITH SEVERAL LUMENS
GB1086744A (en) Method of and apparatus for the calibration of tubes
ES401596A1 (en) Extrusion apparatus
IE33555B1 (en) The manufacture of plastics sacks and tubular or sheet film
FR2109534A5 (en) Tubular extrusion - with mandrel taper inserted into extruder to take hot cross-linked polyolefins
GB1183313A (en) Manufacture of Laminated Tubing
ES350514A1 (en) Food Casings
GB1202455A (en) A method of manufacturing a plastics insulated wire
US3497588A (en) Method for producing pipe having a bend
ES273401A1 (en) Adapted apparatus for introducing biaxil orientation to a tubular member (Machine-translation by Google Translate, not legally binding)
IE37763B1 (en) Large bore pipe made from thermoplastic synthetic materialparticularly for use underground and process and apparatus for manufacturing such a pipe
DE3151578C2 (en)
GB1249741A (en) Improvements in or relating to apparatus for making coaxial cable
GB947255A (en) Process and apparatus for the manufacture of flexible tubes of synthetic thermoplastic material with non-uniform thicknesses
IE34448L (en) Thermoplastics tube with socket.
GB1149645A (en) Extrusion die and die feed apparatus

Legal Events

Date Code Title Description
PS Patent sealed
PE Patent expired