GB1231517A – – Google Patents
GB1231517A – – Google Patents
Info
Publication number
GB1231517A
GB1231517A
GB1231517DA
GB1231517A
GB 1231517 A
GB1231517 A
GB 1231517A
GB 1231517D A
GB1231517D A
GB 1231517DA
GB 1231517 A
GB1231517 A
GB 1231517A
Authority
GB
United Kingdom
Prior art keywords
glass
feb
thermal expansion
linear thermal
oxides
Prior art date
1968-02-23
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
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.)
1968-02-23
Filing date
1969-02-21
Publication date
1971-05-12
1969-02-21
Application filed
filed
Critical
1971-05-12
Publication of GB1231517A
publication
Critical
patent/GB1231517A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
C03C3/00—Glass compositions
C03C3/04—Glass compositions containing silica
C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21—LIGHTING
F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
Abstract
1,231,517. Glass compositions; glass to metal seals. GENERAL ELECTRIC CO. 21 Feb., 1969 [23 Feb., 1968], No. 9576/69. Heading C1M. [Also in Division G2] Glass used to make photoflash lamp bulbs comprises essentially by weight, 60-75% SiO 2 , 10-25% B 2 O 3 , 1-10% Al 2 O 3 , 4-10% total alkali oxides and 0-5% BaO, and has a coefficient of linear thermal expansion of 40 x 10
GB1231517D
1968-02-23
1969-02-21
Expired
GB1231517A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
CA877428T
US70767268A
1968-02-23
1968-02-23
Publications (1)
Publication Number
Publication Date
GB1231517A
true
GB1231517A
(en)
1971-05-12
Family
ID=75300188
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1231517D
Expired
GB1231517A
(en)
1968-02-23
1969-02-21
Country Status (10)
Country
Link
US
(1)
US3506385A
(en)
JP
(1)
JPS4930750B1
(en)
BE
(1)
BE728750A
(en)
BR
(1)
BR6906278D0
(en)
CA
(1)
CA877428A
(en)
DE
(2)
DE6906676U
(en)
ES
(1)
ES363967A1
(en)
FR
(1)
FR2002489A1
(en)
GB
(1)
GB1231517A
(en)
SE
(1)
SE339794B
(en)
Families Citing this family (19)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3723790A
(en)
*
1971-02-01
1973-03-27
Corning Glass Works
Electrical lamp or tube comprising copper coated nickel-iron alloy electrical current conductors and a glass enclosure
US3817683A
(en)
*
1971-02-05
1974-06-18
Gen Electric
Photoflash lamps
US3832124A
(en)
*
1972-10-02
1974-08-27
F Loughridge
Photoflash lamp
US3813205A
(en)
*
1972-11-21
1974-05-28
Gen Electric
Ultrasonically etched photoflash lamp
US3897197A
(en)
*
1974-07-10
1975-07-29
Gte Sylvania Inc
New transparent low thermal conductivity glass compositions and lamp envelopes made therefrom
US3947223A
(en)
*
1974-07-10
1976-03-30
Gte Sylvania Incorporated
Photoflash lamp
CA1044909A
(en)
*
1974-09-25
1978-12-26
Donald E. Armstrong
Photoflash lamp
US4045156A
(en)
*
1974-12-23
1977-08-30
Gte Sylvania Incorporated
Photoflash lamp
US3947225A
(en)
*
1975-03-31
1976-03-30
Gte Sylvania Incorporated
Photoflash lamp
US4038020A
(en)
*
1975-10-10
1977-07-26
Gte Sylvania Incorporated
Photoflash lamp
US4279590A
(en)
*
1976-06-23
1981-07-21
Gte Products Corporation
Lamp with protective coating and method of applying same
US4310773A
(en)
*
1979-05-16
1982-01-12
General Electric Company
Glass flash tube
US4342553A
(en)
*
1980-10-01
1982-08-03
General Electric Company
Glass to nickel-iron alloy seal
US4497756A
(en)
*
1981-10-05
1985-02-05
Gte Products Corporation
Method of making a photoflash article using injection molding
US4487574A
(en)
*
1982-12-20
1984-12-11
General Electric Company
Switching device for photoflash unit
US4553928A
(en)
*
1983-02-25
1985-11-19
General Electric Company
Switching device for photoflash unit
JPS61205284U
(en)
*
1985-06-13
1986-12-24
US4855260A
(en)
*
1988-07-08
1989-08-08
Corning Incorporated
Glasses exhibiting low thermal coefficients of elasticity
US6635592B1
(en)
*
1999-11-29
2003-10-21
Nippon Electric Glass Co., Ltd.
Tungsten seal glass for fluorescent lamp
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2865186A
(en)
*
1955-06-20
1958-12-23
Sylvania Electric Prod
High-intensity photoflash lamp
DE1189852B
(en)
*
1962-02-09
1965-03-25
Patra Patent Treuhand
Electric flash lamps and processes for their manufacture
0
CA
CA877428A
patent/CA877428A/en
not_active
Expired
1968
1968-02-23
US
US707672A
patent/US3506385A/en
not_active
Expired – Lifetime
1969
1969-02-11
BR
BR206278/69A
patent/BR6906278D0/en
unknown
1969-02-19
DE
DE6906676U
patent/DE6906676U/en
not_active
Expired
1969-02-20
DE
DE1908458A
patent/DE1908458C3/en
not_active
Expired
1969-02-21
FR
FR6904444A
patent/FR2002489A1/fr
not_active
Withdrawn
1969-02-21
JP
JP44013535A
patent/JPS4930750B1/ja
active
Pending
1969-02-21
GB
GB1231517D
patent/GB1231517A/en
not_active
Expired
1969-02-21
BE
BE728750D
patent/BE728750A/xx
not_active
IP Right Cessation
1969-02-22
ES
ES363967A
patent/ES363967A1/en
not_active
Expired
1969-02-24
SE
SE02518/69A
patent/SE339794B/xx
unknown
Also Published As
Publication number
Publication date
FR2002489A1
(en)
1969-10-17
DE1908458C3
(en)
1973-10-25
DE6906676U
(en)
1974-01-17
BR6906278D0
(en)
1973-01-18
US3506385A
(en)
1970-04-14
SE339794B
(en)
1971-10-18
CA877428A
(en)
1971-08-03
JPS4930750B1
(en)
1974-08-15
DE1908458B2
(en)
1973-04-05
ES363967A1
(en)
1971-01-01
BE728750A
(en)
1969-08-21
DE1908458A1
(en)
1969-09-25
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Legal Events
Date
Code
Title
Description
1971-09-22
PS
Patent sealed [section 19, patents act 1949]
1986-10-15
PCNP
Patent ceased through non-payment of renewal fee
