FR2406369A1 - Heating panel or hot plate - comprising electric resistance heater strip embedded in baked zircon sand refractory - Google Patents

Heating panel or hot plate - comprising electric resistance heater strip embedded in baked zircon sand refractory

Info

Publication number
FR2406369A1
FR2406369A1 FR7731673A FR7731673A FR2406369A1 FR 2406369 A1 FR2406369 A1 FR 2406369A1 FR 7731673 A FR7731673 A FR 7731673A FR 7731673 A FR7731673 A FR 7731673A FR 2406369 A1 FR2406369 A1 FR 2406369A1
Authority
FR
France
Prior art keywords
panel
baked
refractory
hot plate
electric resistance
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.)
Granted
Application number
FR7731673A
Other languages
French (fr)
Other versions
FR2406369B1 (en
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 FR7731673A priority Critical patent/FR2406369A1/en
Publication of FR2406369A1 publication Critical patent/FR2406369A1/en
Application granted granted Critical
Publication of FR2406369B1 publication Critical patent/FR2406369B1/fr
Granted 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
    • H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
    • H05B3/30—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material on or between metallic plates
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B1/00—Bakers' ovens
    • A21B1/02—Bakers' ovens characterised by the heating arrangements
    • A21B1/06—Ovens heated by radiators
    • A21B1/22—Ovens heated by radiators by electric radiators
    • 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
    • H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/004—Heaters using a particular layout for the resistive material or resistive elements using zigzag layout

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Resistance Heating (AREA)

Abstract

The rigid panel is made of a stable refrctory which conducts heat, but does not conduct electricity. The refractory has high density, high specific heat, and a negligible coefft. of thermal expansion. Inside the panel is at least one flat zigzag metal strip, the width of the strip being several times its thickness. More than one flat zigzag may be used in one or more planes parallel with the large surfaces of the panel. The panel may have undulating surfaces and/or a protective coating. The panel is pref. made by placing a moist mixt. of refractory and binder in a die, then the zigzag strip(s), followed by another layer of the mixt. and applying 150-500 bars to make a biscuit which is removed from the die, dried, and baked 48-72 h. at 1000-1300 degrees C. The panels can be made by non-skilled personnel, and have high heat yield plus long life.
FR7731673A 1977-10-14 1977-10-14 Heating panel or hot plate - comprising electric resistance heater strip embedded in baked zircon sand refractory Granted FR2406369A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7731673A FR2406369A1 (en) 1977-10-14 1977-10-14 Heating panel or hot plate - comprising electric resistance heater strip embedded in baked zircon sand refractory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7731673A FR2406369A1 (en) 1977-10-14 1977-10-14 Heating panel or hot plate - comprising electric resistance heater strip embedded in baked zircon sand refractory

Publications (2)

Publication Number Publication Date
FR2406369A1 true FR2406369A1 (en) 1979-05-11
FR2406369B1 FR2406369B1 (en) 1980-06-13

Family

ID=9196763

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731673A Granted FR2406369A1 (en) 1977-10-14 1977-10-14 Heating panel or hot plate - comprising electric resistance heater strip embedded in baked zircon sand refractory

Country Status (1)

Country Link
FR (1) FR2406369A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466167A1 (en) * 1979-09-18 1981-03-27 Jeanguenin Bernard Concrete heating plate for electric furnace - has resistance wires moulded in single stage in concrete base
EP0242150A2 (en) * 1986-04-16 1987-10-21 Micropore International Limited Method of enclosing an object within a homegeneous block (1)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102301A (en) * 1935-06-15 1937-12-14 Westinghouse Electric & Mfg Co Method of making electric heater elements
US2813960A (en) * 1952-01-25 1957-11-19 Bethge Walther Electric surface heater
DE2321569A1 (en) * 1973-04-28 1974-11-14 Tuerk & Hillinger Kg ELECTRIC FLAT RADIATOR
FR2239836A1 (en) * 1973-08-03 1975-02-28 Deleage Sa Heating panel with flat resistance elements - has two insulating sheets of asbestos and cement, and rear sheet of higher thermal resistance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102301A (en) * 1935-06-15 1937-12-14 Westinghouse Electric & Mfg Co Method of making electric heater elements
US2813960A (en) * 1952-01-25 1957-11-19 Bethge Walther Electric surface heater
DE2321569A1 (en) * 1973-04-28 1974-11-14 Tuerk & Hillinger Kg ELECTRIC FLAT RADIATOR
FR2239836A1 (en) * 1973-08-03 1975-02-28 Deleage Sa Heating panel with flat resistance elements - has two insulating sheets of asbestos and cement, and rear sheet of higher thermal resistance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466167A1 (en) * 1979-09-18 1981-03-27 Jeanguenin Bernard Concrete heating plate for electric furnace - has resistance wires moulded in single stage in concrete base
EP0242150A2 (en) * 1986-04-16 1987-10-21 Micropore International Limited Method of enclosing an object within a homegeneous block (1)
EP0242150A3 (en) * 1986-04-16 1988-06-08 Micropore International Limited Method of enclosing an object within a homegeneous blockmethod of enclosing an object within a homegeneous block (1) (1)

Also Published As

Publication number Publication date
FR2406369B1 (en) 1980-06-13

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Legal Events

Date Code Title Description
ST Notification of lapse