GB1301499A - - Google Patents

Info

Publication number
GB1301499A
GB1301499A GB1301499DA GB1301499A GB 1301499 A GB1301499 A GB 1301499A GB 1301499D A GB1301499D A GB 1301499DA GB 1301499 A GB1301499 A GB 1301499A
Authority
GB
United Kingdom
Prior art keywords
molybdenum
foils
lamp
aluminium
foil
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
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 filed Critical
Publication of GB1301499A publication Critical patent/GB1301499A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/38—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/28—Manufacture of leading-in conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

1301499 Welding by pressure PATENTTREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 10 Nov 1970 [10 Nov 1969] 53425/70 Heading B3R [Also in Division H1] In an electric lamp having molybdenum foils 4 pinch sealed into a glass envelope, with lamp components of a refractory metal welded to the ends of the foils, the welds between the foils and at least those lamp components extending externally of the lamp each includes an intermediate layer of aluminium. Tungsten or molybdenum base pins 7 of a halogen incandescent lamp are ultrasonically welded to molybdenum foils 4 sealed into a quartz glass envelope containing nitrogen and hydrogen bromide. Each pin is welded to a molybdenum foil by a steel sonotrode having a bore in which a steel body having a sintered aluminium welding tip is carried, the pin being laid on an anvil, covered with aluminium foil or powder in paste form with ethanol and then covered with the molybdenum foil prior to welding. The molybdenum foils are ultrasonically welded to the ends of a tungsten or molybdenum filament 5 using intermediate layers of platinum or aluminium in foil or paste form. The welds between the components and the molybdenum foils take place before the foils are pinch sealed into the envelope.
GB1301499D 1969-11-10 1970-11-10 Expired GB1301499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1956484A DE1956484B2 (en) 1969-11-10 1969-11-10 Electric lamp and process for its manufacture

Publications (1)

Publication Number Publication Date
GB1301499A true GB1301499A (en) 1972-12-29

Family

ID=5750662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1301499D Expired GB1301499A (en) 1969-11-10 1970-11-10

Country Status (6)

Country Link
US (1) US3701921A (en)
BE (1) BE758666A (en)
DE (1) DE1956484B2 (en)
FR (1) FR2069197A5 (en)
GB (1) GB1301499A (en)
NL (1) NL7015784A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004052800A1 (en) * 2002-12-09 2004-06-24 Perkinelmer Optoelectronics Gmbh & Co. Kg Composite body and method for producing a mechanical joint

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7403204A (en) * 1974-03-11 1975-09-15 Philips Nv ELECTRIC LAMP.
US4136298A (en) * 1977-08-15 1979-01-23 General Electric Company Electrode-inlead for miniature discharge lamps
HU186219B (en) * 1983-01-12 1985-06-28 Tungsram Reszvenytarsasag Method for producing the two-spot welded joints of high-melting pole-foil-pole conductors flattened into hard glass
DE4035361A1 (en) * 1990-11-07 1992-05-14 Licentia Gmbh METHOD FOR PRODUCING A DIRECTLY HEATED CATHODE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341716A (en) * 1943-01-07 1944-02-15 Eitel Mccullough Inc Welded joint and method of making the same
US3346768A (en) * 1964-10-29 1967-10-10 Gen Electric Incandescent lamp with a fuse integral with the lead-in structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004052800A1 (en) * 2002-12-09 2004-06-24 Perkinelmer Optoelectronics Gmbh & Co. Kg Composite body and method for producing a mechanical joint
US7687996B2 (en) 2002-12-09 2010-03-30 Perkinelmer Optoelectronics Gmbh & Co. Kg Compound body and a process for the production of a mechanical connection
US7955153B2 (en) 2002-12-09 2011-06-07 Xenon Technologies (Germany) Gmbh Compound body and a process for the production of a mechanical connection

Also Published As

Publication number Publication date
DE1956484A1 (en) 1971-05-19
DE1956484B2 (en) 1978-04-20
FR2069197A5 (en) 1971-09-03
US3701921A (en) 1972-10-31
BE758666A (en) 1971-04-16
NL7015784A (en) 1971-05-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees