GB1160855A - Improvements in Getter for Incandescent Lamps and similar devices - Google Patents

Improvements in Getter for Incandescent Lamps and similar devices

Info

Publication number
GB1160855A
GB1160855A GB18667/68A GB1866768A GB1160855A GB 1160855 A GB1160855 A GB 1160855A GB 18667/68 A GB18667/68 A GB 18667/68A GB 1866768 A GB1866768 A GB 1866768A GB 1160855 A GB1160855 A GB 1160855A
Authority
GB
United Kingdom
Prior art keywords
phosphorus
incandescent lamps
pentanitride
filament
lamp
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
GB18667/68A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1160855A publication Critical patent/GB1160855A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters

Abstract

1,160,855. Gettering; electric incandescent lamps. GENERAL ELECTRIC CO. 19 April, 1968 [19 May, 19671, No. 18667/68. Headings H1D and H1F. Hermetically sealed electrical devices, e.g. incandescent lamps, are gettered by flashing therein pure crystalline phosphorus pentanitride. As applied to incandescent lamps, the phosphorus pentanitride is preferably used alone in gas-filled types, while in vacuum lamps it is preferably mixed with cryolite and red phosphorus. In either case, a quantity of oxidizing agent-preferably Sb 2 O 4 or BiPO 4 may also be included. The phosphorus pentanitride is formed into a slurry with amyl acetate, the lamp filament being dipped in the slurry and subsequently heated to evaporate the amyl acetate. After the filament mount has been sealed to the remainder of the lamp envelope, and the lamp evacuated and filled with gas, if desired, the filament is heated to vaporize and decompose the pentanitride into white phosphorus and nitrogen.
GB18667/68A 1967-05-19 1968-04-19 Improvements in Getter for Incandescent Lamps and similar devices Expired GB1160855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63961567A 1967-05-19 1967-05-19

Publications (1)

Publication Number Publication Date
GB1160855A true GB1160855A (en) 1969-08-06

Family

ID=24564849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18667/68A Expired GB1160855A (en) 1967-05-19 1968-04-19 Improvements in Getter for Incandescent Lamps and similar devices

Country Status (4)

Country Link
US (1) US3475072A (en)
DE (1) DE1764332B1 (en)
FR (1) FR1565869A (en)
GB (1) GB1160855A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679285A (en) * 1970-12-28 1972-07-25 Gen Electric Gettering processes for electric lamps and similar devices
NL7105839A (en) * 1971-04-29 1972-10-31
US3728004A (en) * 1971-06-25 1973-04-17 Gte Sylvania Inc Method of employing mercury-dispensing getters in fluorescent lamps
DE2659609A1 (en) * 1976-12-30 1978-07-20 Patra Patent Treuhand ELECTRIC LIGHT BULB
US4727286A (en) * 1981-11-16 1988-02-23 Gte Products Corporation Electric lamp including oxygen getter
US4923424A (en) * 1988-02-09 1990-05-08 Gte Products Corporation Incandescent lamps including a combined getter
US4927398A (en) * 1988-02-09 1990-05-22 Gte Products Corporation Incandescent lamps including a combined getter
EP0374345B1 (en) * 1988-12-21 1995-05-03 Gte Products Corporation Incandescent lamps including a combined getter
US5800235A (en) * 1996-02-27 1998-09-01 Illumination Technology, Inc. Process for manufacturing incandescent lamps having gettering agents
JP4596805B2 (en) * 2004-03-31 2010-12-15 財団法人国際科学振興財団 Vacuum tube manufacturing equipment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1250815A (en) * 1914-02-05 1917-12-18 Gen Electric Incandescent lamp.
US1752747A (en) * 1926-03-10 1930-04-01 Westinghouse Lamp Co Electron-discharge device and getter therefor
US1840121A (en) * 1926-05-20 1932-01-05 Westinghouse Electric & Mfg Co Vacuum tube
US1895855A (en) * 1929-11-27 1933-01-31 Westinghouse Lamp Co Method of lamp manufacture
US1989790A (en) * 1929-11-27 1935-02-05 Westinghouse Lamp Co Getter for incandescent lamps
US1991510A (en) * 1930-10-23 1935-02-19 Haworth Securities Corp Radiating apparatus
DE833080C (en) * 1949-11-23 1952-03-03 Lumalampan Ab Electric incandescent lamp or mixed light lamp, preferably one with a double or multiple spiral filament

Also Published As

Publication number Publication date
DE1764332B1 (en) 1972-05-31
US3475072A (en) 1969-10-28
FR1565869A (en) 1969-05-02

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Legal Events

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