GB860213A - Improvements in or relating to electrical heating elements - Google Patents

Improvements in or relating to electrical heating elements

Info

Publication number
GB860213A
GB860213A GB2549458A GB2549458A GB860213A GB 860213 A GB860213 A GB 860213A GB 2549458 A GB2549458 A GB 2549458A GB 2549458 A GB2549458 A GB 2549458A GB 860213 A GB860213 A GB 860213A
Authority
GB
United Kingdom
Prior art keywords
support
graphite
slurry
coated
metal
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
GB2549458A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2549458A priority Critical patent/GB860213A/en
Priority to ES0251277A priority patent/ES251277A1/en
Priority to CH7669759A priority patent/CH373827A/en
Publication of GB860213A publication Critical patent/GB860213A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base

Landscapes

  • Surface Heating Bodies (AREA)

Abstract

860,213. Electric heating elements. BALDWIN, A. W., Aug. 6, 1959 [Aug. 8, 1958; Oct. 20, 1958]. Nos. 25494/58 and 33399/58. Drawings to Specification. Class 39 (3). A heating element comprises a number of superimposed layers of a mixture of carbon and a metal having a positive temperature coefficient of residivity coated on an insulating support, for example, fibre-glass cloth, or mica flake and/or fibre-glass impregnated with a thermosetting resin. The deposits are applied by spraying or printing to discrete areas of the support and preferably joined in series by zinc strips; metal foil terminal tags may also be provided and the whole assembly enclosed in a further layer of the same material as the support. The deposit is preferably applied in six layers as a slurry of 74 parts by weight of graphite and 26 parts of finely particulate silver or nickel. Alternatively a slurry is formed by mixing together an aqueous solution of graphite and silver nitrate, the metal salt being decomposed after filtering by being baked in a graphite crucible. The individual graphite particles are thus coated with the metal and the slurry is formed by suspending the particles in alcohol, naptha or water. The overall coefficient of resistivity of the element may be either sign or zero, and the number of layers. coated on the support may be varied depending on the resistance per square desired. The heating element is suitable for use in ovens, panel heaters, as a de-icing means in aircraft and similar medium temperate equipment.
GB2549458A 1958-08-08 1958-08-08 Improvements in or relating to electrical heating elements Expired GB860213A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2549458A GB860213A (en) 1958-08-08 1958-08-08 Improvements in or relating to electrical heating elements
ES0251277A ES251277A1 (en) 1958-08-08 1959-08-05 Procedure for the preparation of electrical elements of caldeo (Machine-translation by Google Translate, not legally binding)
CH7669759A CH373827A (en) 1958-08-08 1959-08-07 Electric heating element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2549458A GB860213A (en) 1958-08-08 1958-08-08 Improvements in or relating to electrical heating elements

Publications (1)

Publication Number Publication Date
GB860213A true GB860213A (en) 1961-02-01

Family

ID=10228601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2549458A Expired GB860213A (en) 1958-08-08 1958-08-08 Improvements in or relating to electrical heating elements

Country Status (1)

Country Link
GB (1) GB860213A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733057A (en) * 1985-04-19 1988-03-22 Raychem Corporation Sheet heater
EP1013148A1 (en) 1997-02-17 2000-06-28 Strix Limited Electric heaters
GB2456392A (en) * 2008-01-17 2009-07-22 H V Skan Ltd Panel heating device
WO2009135148A3 (en) * 2008-05-01 2010-03-18 Thermoceramix Inc. Cooking appliances using heaters coatings
EP2186380A1 (en) * 2007-07-20 2010-05-19 Lg Electronics Inc. Electric heater
US9771158B2 (en) 2005-02-09 2017-09-26 Qinetiq Limited Ice protection of aerodynamic surfaces
DE102016105774A1 (en) * 2016-03-30 2017-10-05 Jenoptik Advanced Systems Gmbh Heatable surface element and method for producing the same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733057A (en) * 1985-04-19 1988-03-22 Raychem Corporation Sheet heater
EP1013148A1 (en) 1997-02-17 2000-06-28 Strix Limited Electric heaters
US9771158B2 (en) 2005-02-09 2017-09-26 Qinetiq Limited Ice protection of aerodynamic surfaces
EP2186380A1 (en) * 2007-07-20 2010-05-19 Lg Electronics Inc. Electric heater
EP2186380A4 (en) * 2007-07-20 2012-05-09 Lg Electronics Inc Electric heater
US8269150B2 (en) 2007-07-20 2012-09-18 Lg Electronics Inc. Electric heater
EP2186380B1 (en) 2007-07-20 2016-06-22 LG Electronics Inc. Electric heater
GB2456392A (en) * 2008-01-17 2009-07-22 H V Skan Ltd Panel heating device
WO2009135148A3 (en) * 2008-05-01 2010-03-18 Thermoceramix Inc. Cooking appliances using heaters coatings
DE102016105774A1 (en) * 2016-03-30 2017-10-05 Jenoptik Advanced Systems Gmbh Heatable surface element and method for producing the same

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