GB774831A - Improvements in electric heating units - Google Patents

Improvements in electric heating units

Info

Publication number
GB774831A
GB774831A GB9450/55A GB945055A GB774831A GB 774831 A GB774831 A GB 774831A GB 9450/55 A GB9450/55 A GB 9450/55A GB 945055 A GB945055 A GB 945055A GB 774831 A GB774831 A GB 774831A
Authority
GB
United Kingdom
Prior art keywords
sheath
per cent
nickel
heating
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
GB9450/55A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB774831A publication Critical patent/GB774831A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/40Heating elements having the shape of rods or tubes
    • H05B3/42Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12333Helical or with helical component
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12861Group VIII or IB metal-base component
    • Y10T428/12903Cu-base component
    • Y10T428/1291Next to Co-, Cu-, or Ni-base component
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12861Group VIII or IB metal-base component
    • Y10T428/12903Cu-base component
    • Y10T428/12917Next to Fe-base component
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12986Adjacent functionally defined components

Abstract

774,831. Electric heating elements. GENERAL ELECTRIC CO. March 31, 1955 [April 26, 1954], No. 9450/55. Class 39(3) A sheathed wire heating element for heating metal objects or heating loads in direct contact with the sheath, e.g. utensils on a surface heating unit of a cooking range, comprises a resistance conductor having a high temperature co-efficient of resistance, and a composite enclosing sheath consisting of an inner layer or sheath of a metal having high thermal conductivity and an outer layer or sheath of a heat and corrosion resistant metal. As shown, a resistance conductor 1 composed of substantially 97 per cent iron and 3 per cent silicon is embedded in magnesium oxide 4 which is compacted so as to readily conduct heat from the conductor 1 to a sheath 2 which may be of copper. The oxide is compacted by reducing and elongating the sheath 2 which may be effected by swaging or rolling, the sheath then being fitted into or encased by a sheath 3 of alloy which may consist of 80 per cent nickel. 14 per cent chromium and 6 per cent iron. The outer sheath is then reduced and elongated to cause it to tightly grip the inner sheath 2. Each end of the element is hermetically sealed by means of a metal sleeve 6 which may be welded or silver soldered to the sheath 3 and secured to a ceramic bushing 9 by titanium hydride solder, a tube 10 being welded to a terminal 5 and sealed to the bushing. Aluminium or silver are also specified for the inner sheath and the outer sheath may be of stainless steel or a chromium nickel alloy. Pure nickel or a nickel-iron alloy are also specified for the resistance conductor. Specications 516,285 and 687,535 are referred to.
GB9450/55A 1954-04-26 1955-03-31 Improvements in electric heating units Expired GB774831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US425583A US2767288A (en) 1954-04-26 1954-04-26 Electric heating unit

Publications (1)

Publication Number Publication Date
GB774831A true GB774831A (en) 1957-05-15

Family

ID=23687172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9450/55A Expired GB774831A (en) 1954-04-26 1955-03-31 Improvements in electric heating units

Country Status (2)

Country Link
US (1) US2767288A (en)
GB (1) GB774831A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425497A (en) 1979-08-17 1984-01-10 Raychem Corporation PTC Heater assembly
US4547659A (en) * 1979-08-17 1985-10-15 Raychem Corporation PTC Heater assembly
US4673801A (en) * 1979-08-17 1987-06-16 Raychem Corporation PTC heater assembly
DE3813481A1 (en) * 1988-04-21 1989-11-09 Siemens Ag Method for producing an electrical tubular heater
US5864282A (en) * 1996-11-29 1999-01-26 Marchi Associates, Inc. Unique strain relief junction

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987689A (en) * 1959-11-10 1961-06-06 Thomas H Lennox Resistance heating device
SE327767B (en) * 1964-02-07 1970-08-31 Kanthal Ab
US3305820A (en) * 1964-03-23 1967-02-21 Thomas H Lennox Resistance heating element
US3476916A (en) * 1967-12-11 1969-11-04 American Standard Inc Electrical heater
US3578952A (en) * 1969-06-05 1971-05-18 Escoa Fintube Corp Tubular electrical heating element with a segmented helical fin
US4137423A (en) * 1977-12-16 1979-01-30 The United States Of America As Represented By The United States Department Of Energy Nuclear instrumentation cable end seal
US4319127A (en) * 1980-07-16 1982-03-09 Emerson Electric Co. Electric heating elements
DE3347160A1 (en) * 1983-12-27 1985-08-29 Türk & Hillinger GmbH, 7200 Tuttlingen ELECTRIC HEATING DEVICE FOR PLASTIC INJECTION NOZZLES
JPS60124892U (en) * 1984-02-01 1985-08-22 三洋熱工業株式会社 Double sheath type heating element
JPH0676652B2 (en) * 1984-10-08 1994-09-28 キヤノン株式会社 Surface treatment method for structural materials for vacuum equipment
US4626665A (en) * 1985-06-24 1986-12-02 Shell Oil Company Metal oversheathed electrical resistance heater
US4972067A (en) * 1989-06-21 1990-11-20 Process Technology Inc. PTC heater assembly and a method of manufacturing the heater assembly
FR2846509B1 (en) * 2002-10-23 2006-03-17 Seb Sa PTC EFFECT ARMORED HEATING ELEMENT
FR2991605B1 (en) 2012-06-12 2015-05-29 Grs Valtech METHOD AND INSTALLATION FOR TREATING A SOIL CONTAINING AT LEAST ONE EXTRACT POLLUTANT
US10076001B2 (en) * 2012-07-05 2018-09-11 Nvent Services Gmbh Mineral insulated cable having reduced sheath temperature
US9300124B2 (en) * 2013-01-18 2016-03-29 Durex International Corp Thermally isolating hermetic electrical feed-through
JP6705063B2 (en) * 2016-10-21 2020-06-03 ワットロー・エレクトリック・マニュファクチャリング・カンパニー Heater system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2036788A (en) * 1934-03-06 1936-04-07 Gen Electric Electric heating unit
US2331093A (en) * 1939-06-28 1943-10-05 Halvdan J Eriksen Electric heating element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425497A (en) 1979-08-17 1984-01-10 Raychem Corporation PTC Heater assembly
US4547659A (en) * 1979-08-17 1985-10-15 Raychem Corporation PTC Heater assembly
US4673801A (en) * 1979-08-17 1987-06-16 Raychem Corporation PTC heater assembly
DE3813481A1 (en) * 1988-04-21 1989-11-09 Siemens Ag Method for producing an electrical tubular heater
US5864282A (en) * 1996-11-29 1999-01-26 Marchi Associates, Inc. Unique strain relief junction

Also Published As

Publication number Publication date
US2767288A (en) 1956-10-16

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