GB1449851A - Electrical incandescent filament devices - Google Patents

Electrical incandescent filament devices

Info

Publication number
GB1449851A
GB1449851A GB3272973A GB3272973A GB1449851A GB 1449851 A GB1449851 A GB 1449851A GB 3272973 A GB3272973 A GB 3272973A GB 3272973 A GB3272973 A GB 3272973A GB 1449851 A GB1449851 A GB 1449851A
Authority
GB
United Kingdom
Prior art keywords
ceramic plates
filament
july
thick
diameter
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
GB3272973A
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.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries Ltd
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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB3272973A priority Critical patent/GB1449851A/en
Priority to ZA00744324A priority patent/ZA744324B/en
Priority to US485778A priority patent/US3930178A/en
Priority to CA204,210A priority patent/CA1006219A/en
Priority to NL7409134.A priority patent/NL161299C/en
Priority to IT24893/74A priority patent/IT1017658B/en
Priority to DE19742432762 priority patent/DE2432762C3/en
Priority to FR7424010A priority patent/FR2237314B1/fr
Priority to AU71074/74A priority patent/AU488078B2/en
Priority to JP7905974A priority patent/JPS5418868B2/ja
Publication of GB1449851A publication Critical patent/GB1449851A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp

Abstract

1449851 Ceramic-metal seals THORN ELECTRICAL INDUSTRIES Ltd 9 July 1974 [10 July 1973] 32729/73 Heading B3V [Also in Division H1] The tungsten filament 12 of a lamp is supported along its length within a tubular envelope by a number of shaped ceramic plates 14 which are a shrink fit on the filament. Initially the ceramic plates are oversized, e.g. 8À2 mm. in diameter and 0À63 mm. thick, and with the filament 12 and link rod 15 are mounted in a molybdenum jig and fired in a hydrogen tube furnace for 2 hours at 1750‹ C. This firing effects the shrink fitting, with the ceramic plates in the final structure being 6À6 mm. in diameter and 0À5 mm. thick. The ceramic plates may be of alumina, magnesia, yttria, thoria or common spinel, and in one example the composition is given as Al 2 O 3 powder plus 0À05% MgO and 0À05% Y 2 O 3 .
GB3272973A 1973-07-10 1973-07-10 Electrical incandescent filament devices Expired GB1449851A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB3272973A GB1449851A (en) 1973-07-10 1973-07-10 Electrical incandescent filament devices
ZA00744324A ZA744324B (en) 1973-07-10 1974-07-04 Improved electrical incandescent filament devices
US485778A US3930178A (en) 1973-07-10 1974-07-05 Electrical incandescent filament devices
CA204,210A CA1006219A (en) 1973-07-10 1974-07-05 Ceramic support plates for incandescent filament
NL7409134.A NL161299C (en) 1973-07-10 1974-07-05 LONG-ELECTRIC LIGHT BULB.
IT24893/74A IT1017658B (en) 1973-07-10 1974-07-08 ELECTRIC INCANDESCENT FILAMENT DEVICE
DE19742432762 DE2432762C3 (en) 1973-07-10 1974-07-08 Tubular electric light bulb
FR7424010A FR2237314B1 (en) 1973-07-10 1974-07-10
AU71074/74A AU488078B2 (en) 1973-07-10 1974-07-10 Improved electrical incandescent filament devices
JP7905974A JPS5418868B2 (en) 1973-07-10 1974-07-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3272973A GB1449851A (en) 1973-07-10 1973-07-10 Electrical incandescent filament devices

Publications (1)

Publication Number Publication Date
GB1449851A true GB1449851A (en) 1976-09-15

Family

ID=10343147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3272973A Expired GB1449851A (en) 1973-07-10 1973-07-10 Electrical incandescent filament devices

Country Status (8)

Country Link
US (1) US3930178A (en)
JP (1) JPS5418868B2 (en)
CA (1) CA1006219A (en)
FR (1) FR2237314B1 (en)
GB (1) GB1449851A (en)
IT (1) IT1017658B (en)
NL (1) NL161299C (en)
ZA (1) ZA744324B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129610A (en) * 1982-11-06 1984-05-16 Emi Plc Thorn Incandescent lamps
DE3522654A1 (en) * 1985-01-21 1987-01-08 Paul Prof Dr Schulz Incandescent lamps having a high light output ration, and incandescent lamps with arc discharges
EP1511360A2 (en) * 2003-08-27 2005-03-02 Heraeus Noblelight GmbH Infrared radiator, its use and a manufacturing method
DE10346101A1 (en) * 2003-08-27 2005-03-31 Heraeus Noblelight Gmbh Infrared radiator, its use and a method for its production
DE10029437B4 (en) * 2000-06-21 2005-11-17 Heraeus Noblelight Gmbh Infrared radiator and method for operating such an infrared radiator

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3266909D1 (en) * 1981-06-23 1985-11-21 Emi Plc Thorn Tungsten halogen incandescent lamps and mixed filling of gas and halogen compounds
JPS6085064U (en) * 1983-11-17 1985-06-12 ウシオ電機株式会社 tube light bulb
FR2652476A1 (en) * 1989-09-28 1991-03-29 Thermal Quartz Schmelze Gmbh HEATING TUBE.
US6690103B1 (en) 1999-07-21 2004-02-10 Alan K. Uke Incandescent light bulb with variable pitch coiled filament
US7755291B2 (en) * 2005-06-27 2010-07-13 Osram Sylvania Inc. Incandescent lamp that emits infrared light and a method of making the lamp
WO2007113710A1 (en) * 2006-03-30 2007-10-11 Koninklijke Philips Electronics N.V. Incandescent lamp with filament support
DE102006060774A1 (en) * 2006-12-21 2008-06-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH halogen bulb
KR101450895B1 (en) * 2008-03-17 2014-10-21 엘지전자 주식회사 Filament supporter and tube heater comprising the same
JP5707751B2 (en) * 2010-06-30 2015-04-30 岩崎電気株式会社 Filament lamp
WO2012088343A1 (en) * 2010-12-22 2012-06-28 Cunningham David W Incandescent illumination system incorporation an infrared-reflective shroud
US10264629B2 (en) * 2013-05-30 2019-04-16 Osram Sylvania Inc. Infrared heat lamp assembly
US10468242B2 (en) * 2013-09-05 2019-11-05 Applied Materials, Inc. Lamp cross-section for reduced coil heating
CN104093228A (en) * 2014-07-09 2014-10-08 陆国梁 High-power double-spiral infrared heating lamp tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997975A (en) * 1933-05-12 1935-04-16 Incandescent electric lamp
US2813993A (en) * 1954-09-17 1957-11-19 Gen Electric Electric lamp or similar device
BE544147A (en) * 1955-01-05
US2910605A (en) * 1958-06-23 1959-10-27 Gen Electric Radiant energy device
NL258284A (en) * 1959-12-24
FR1317783A (en) * 1961-03-17 1963-05-08

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129610A (en) * 1982-11-06 1984-05-16 Emi Plc Thorn Incandescent lamps
DE3522654A1 (en) * 1985-01-21 1987-01-08 Paul Prof Dr Schulz Incandescent lamps having a high light output ration, and incandescent lamps with arc discharges
DE10029437B4 (en) * 2000-06-21 2005-11-17 Heraeus Noblelight Gmbh Infrared radiator and method for operating such an infrared radiator
USRE40181E1 (en) 2000-06-21 2008-03-25 Heraeus Noblelight Gmbh Infrared radiator with carbon fiber heating element centered by spacers
EP1511360A2 (en) * 2003-08-27 2005-03-02 Heraeus Noblelight GmbH Infrared radiator, its use and a manufacturing method
DE10346101A1 (en) * 2003-08-27 2005-03-31 Heraeus Noblelight Gmbh Infrared radiator, its use and a method for its production
EP1511360A3 (en) * 2003-08-27 2007-08-29 Heraeus Noblelight GmbH Infrared radiator, its use and a manufacturing method

Also Published As

Publication number Publication date
JPS5038386A (en) 1975-04-09
FR2237314A1 (en) 1975-02-07
NL7409134A (en) 1975-01-14
JPS5418868B2 (en) 1979-07-11
IT1017658B (en) 1977-08-10
NL161299B (en) 1979-08-15
AU7107474A (en) 1976-01-15
CA1006219A (en) 1977-03-01
FR2237314B1 (en) 1977-10-07
US3930178A (en) 1975-12-30
DE2432762A1 (en) 1975-01-30
DE2432762B2 (en) 1977-04-07
ZA744324B (en) 1975-07-30
NL161299C (en) 1980-01-15

Similar Documents

Publication Publication Date Title
GB1449851A (en) Electrical incandescent filament devices
GB1366525A (en) Discharge lamp
GB1486389A (en) Short-arc discharge lamp
GB1296912A (en)
GB1301966A (en)
GB1475866A (en) High pressure metal vapour lamp and a transparent polycrystalline alumina tube therefor
GB1513700A (en) Electric discharge lamp
GB1325821A (en) Lamp having filament support
GB1435244A (en) Sealing discharge tubes
GB8429740D0 (en) Lead wires in pinch seals
GB1505142A (en) High current low pressure discharge device
GB801296A (en) Improvements relating to metal-ceramic electrical resistors
CA994410A (en) Gas-filled electric incandescent lamp having a cylindrical envelope and an axially arranged filament body
GB1260933A (en) Method of manufacturing a glass ceramic material
ES414454A1 (en) A lamp of electric shock. (Machine-translation by Google Translate, not legally binding)
GB1073341A (en) Process for the production of thoriated highly emitting cathodes
GB1438065A (en) Sodium vapour lamp
GB1561735A (en) Infra-red energy source
GB1421406A (en) Gas discharge lamp
GB1289616A (en)
GB2001049A (en) Sealing composition
JPS57196469A (en) Metal vapor electric-discharge lamp
SU633832A1 (en) Glass cement for soldering metal with ceramics
GB1397865A (en) Tungsten incandescent body containing dopant substances and procedure for its preparation
GB1102646A (en) Electric lamp with ribbon seal

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee