GB1274681A - Incandescent lamp - Google Patents

Incandescent lamp

Info

Publication number
GB1274681A
GB1274681A GB2914869A GB2914869A GB1274681A GB 1274681 A GB1274681 A GB 1274681A GB 2914869 A GB2914869 A GB 2914869A GB 2914869 A GB2914869 A GB 2914869A GB 1274681 A GB1274681 A GB 1274681A
Authority
GB
United Kingdom
Prior art keywords
incandescent lamp
june
mercury
electric incandescent
heading
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
GB2914869A
Inventor
Bernard Kopelman
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.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania Inc
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 GTE Sylvania Inc filed Critical GTE Sylvania Inc
Publication of GB1274681A publication Critical patent/GB1274681A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/50—Selection of substances for gas fillings; Specified pressure thereof

Landscapes

  • Discharge Lamp (AREA)

Abstract

1,274,681. Electric incandescent lamp. GTE SYLVANIA Inc. 9 June, 1969 [7 June, 1968], No. 29148/69. Heading H1F. An electric incandescent lamp comprises a transparent envelope, a tungsten filament therein and a filling of inert gas, bromine and mercury. The amount of mercury present should be greater than the stoichiometric amount required to form mercurous bromide.
GB2914869A 1968-06-07 1969-06-09 Incandescent lamp Expired GB1274681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73544668A 1968-06-07 1968-06-07

Publications (1)

Publication Number Publication Date
GB1274681A true GB1274681A (en) 1972-05-17

Family

ID=24955838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2914869A Expired GB1274681A (en) 1968-06-07 1969-06-09 Incandescent lamp

Country Status (3)

Country Link
DE (1) DE1928442A1 (en)
FR (1) FR2010338A1 (en)
GB (1) GB1274681A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824904A1 (en) * 1988-07-22 1990-01-25 Philips Patentverwaltung CIRCUIT ARRANGEMENT FOR OPERATING AN ELECTRIC BULB FROM AN AC VOLTAGE SOURCE AND BULB FOR OPERATION IN SUCH A CIRCUIT ARRANGEMENT
DE29721617U1 (en) * 1997-12-06 1998-02-12 Bekuplast Kunststoffverarbeitungsgesellschaft mbH, 49824 Ringe Rotary stacking container with drainage

Also Published As

Publication number Publication date
DE1928442A1 (en) 1969-12-11
FR2010338A1 (en) 1970-02-13

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees