EP0676910A3 - Method and apparatus for manufacturing curved radiators, especially incandescent halogen lamps, and radiators produced by this method. - Google Patents

Method and apparatus for manufacturing curved radiators, especially incandescent halogen lamps, and radiators produced by this method. Download PDF

Info

Publication number
EP0676910A3
EP0676910A3 EP95104587A EP95104587A EP0676910A3 EP 0676910 A3 EP0676910 A3 EP 0676910A3 EP 95104587 A EP95104587 A EP 95104587A EP 95104587 A EP95104587 A EP 95104587A EP 0676910 A3 EP0676910 A3 EP 0676910A3
Authority
EP
European Patent Office
Prior art keywords
radiators
halogen lamps
produced
filling pressure
manufacturing curved
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
EP95104587A
Other languages
German (de)
French (fr)
Other versions
EP0676910A2 (en
EP0676910B1 (en
Inventor
Klaus Bertsche
Gerd-Otto Eckstein
Claus Regitz
Thomas Schroeder
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0676910A2 publication Critical patent/EP0676910A2/en
Publication of EP0676910A3 publication Critical patent/EP0676910A3/en
Application granted granted Critical
Publication of EP0676910B1 publication Critical patent/EP0676910B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/744—Lamps as heat source, i.e. heating elements with protective gas envelope, e.g. halogen lamps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Planar Illumination Modules (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

The mfr. is effected in 3 successive stages, in which a linear lamp tube containing a glow resistance is filled with a gas at a cold pressure of not higher than 1.5 bar, before it is locally heated and then bent into the required shape, with a working filling pressure of about 1 bar maintained during the localised heating and bending. Pref. the cold filling pressure is between 600 and 800 mbar, with part of the lamp tube cooled during the localised heating and bending steps, for maintaining the required working filling pressure. <IMAGE>
EP95104587A 1994-04-11 1995-03-28 Method for manufacturing curved radiators, especially incandescent halogen lamps Expired - Lifetime EP0676910B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4412389 1994-04-11
DE4412389A DE4412389A1 (en) 1994-04-11 1994-04-11 Method for producing a curved spotlight, in particular a halogen incandescent lamp, and spotlights produced with it, and a device suitable therefor

Publications (3)

Publication Number Publication Date
EP0676910A2 EP0676910A2 (en) 1995-10-11
EP0676910A3 true EP0676910A3 (en) 1996-07-24
EP0676910B1 EP0676910B1 (en) 2002-02-27

Family

ID=6515086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95104587A Expired - Lifetime EP0676910B1 (en) 1994-04-11 1995-03-28 Method for manufacturing curved radiators, especially incandescent halogen lamps

Country Status (5)

Country Link
EP (1) EP0676910B1 (en)
JP (1) JPH0896773A (en)
AT (1) ATE213899T1 (en)
DE (2) DE4412389A1 (en)
HU (1) HU215308B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822829A1 (en) * 1998-05-20 1999-11-25 Heraeus Noblelight Gmbh Short-wave infrared panel heater
CN2790090Y (en) * 2005-04-21 2006-06-21 上海中铁科技发展有限公司 Nano-silicon carbide composite fiber electric heating tube

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262469B (en) * 1963-12-30 1968-03-07 Westinghouse Electric Corp Process for the production of a tubular, curved electric infrared heater with a glass vessel closed by melting
EP0316986A1 (en) * 1987-11-06 1989-05-24 Koninklijke Philips Electronics N.V. Electrical cooking unit and electrical cooking apparatus provided with this unit
EP0328733A1 (en) * 1988-02-17 1989-08-23 Blv Licht- Und Vakuumtechnik Gmbh Radiator filled with gas
JPH01227377A (en) * 1988-03-08 1989-09-11 Matsushita Electron Corp Infrared-ray heater and its manufacture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262469B (en) * 1963-12-30 1968-03-07 Westinghouse Electric Corp Process for the production of a tubular, curved electric infrared heater with a glass vessel closed by melting
EP0316986A1 (en) * 1987-11-06 1989-05-24 Koninklijke Philips Electronics N.V. Electrical cooking unit and electrical cooking apparatus provided with this unit
EP0328733A1 (en) * 1988-02-17 1989-08-23 Blv Licht- Und Vakuumtechnik Gmbh Radiator filled with gas
JPH01227377A (en) * 1988-03-08 1989-09-11 Matsushita Electron Corp Infrared-ray heater and its manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 548 (E - 856) 7 December 1989 (1989-12-07) *

Also Published As

Publication number Publication date
EP0676910A2 (en) 1995-10-11
JPH0896773A (en) 1996-04-12
DE59510070D1 (en) 2002-04-04
HU215308B (en) 1998-11-30
HUT70734A (en) 1995-10-30
DE4412389A1 (en) 1995-10-12
EP0676910B1 (en) 2002-02-27
ATE213899T1 (en) 2002-03-15
HU9501039D0 (en) 1995-06-28

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