EP0901150A3 - Electrode, procedure and device for its manufacture - Google Patents

Electrode, procedure and device for its manufacture Download PDF

Info

Publication number
EP0901150A3
EP0901150A3 EP98113037A EP98113037A EP0901150A3 EP 0901150 A3 EP0901150 A3 EP 0901150A3 EP 98113037 A EP98113037 A EP 98113037A EP 98113037 A EP98113037 A EP 98113037A EP 0901150 A3 EP0901150 A3 EP 0901150A3
Authority
EP
European Patent Office
Prior art keywords
electrode
procedure
manufacture
radial
tip
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.)
Granted
Application number
EP98113037A
Other languages
German (de)
French (fr)
Other versions
EP0901150B1 (en
EP0901150A2 (en
Inventor
Bernhard Dr. Altmann
Rudolf Richter
Klaus Stedele
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0901150A2 publication Critical patent/EP0901150A2/en
Publication of EP0901150A3 publication Critical patent/EP0901150A3/en
Application granted granted Critical
Publication of EP0901150B1 publication Critical patent/EP0901150B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • 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
    • H01J9/02—Manufacture of electrodes or electrode systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Powder Metallurgy (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Secondary Cells (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

Eine Elektrode (4) aus Wolframmaterial für eine Hochdruckentladungslampe besitzt einen zylindrischen Schaft (5) und eine konisch zulaufende Spitze (9). Die Spitze ist im wesentlichen durch radiales Umformen (radiales Hämmern oder Querwalzen) hergestellt.

Figure 00000001
An electrode (4) made of tungsten material for a high-pressure discharge lamp has a cylindrical shaft (5) and a tapered tip (9). The tip is essentially produced by radial shaping (radial hammering or transverse rolling).
Figure 00000001
EP98113037A 1997-09-04 1998-07-14 Electrode, procedure and device for its manufacture Expired - Lifetime EP0901150B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19738574 1997-09-04
DE19738574A DE19738574A1 (en) 1997-09-04 1997-09-04 Electrode and method and apparatus for making the same

Publications (3)

Publication Number Publication Date
EP0901150A2 EP0901150A2 (en) 1999-03-10
EP0901150A3 true EP0901150A3 (en) 1999-04-21
EP0901150B1 EP0901150B1 (en) 2004-09-22

Family

ID=7841107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113037A Expired - Lifetime EP0901150B1 (en) 1997-09-04 1998-07-14 Electrode, procedure and device for its manufacture

Country Status (7)

Country Link
US (1) US6109995A (en)
EP (1) EP0901150B1 (en)
JP (1) JPH11135011A (en)
CN (1) CN1151537C (en)
AT (1) ATE277423T1 (en)
DE (2) DE19738574A1 (en)
HU (1) HU221580B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001319617A (en) * 2000-05-08 2001-11-16 Ushio Inc Ultrahigh-pressure mercury lamp
JP4436547B2 (en) * 2000-07-31 2010-03-24 株式会社ユメックス Cathode for discharge lamp, discharge lamp provided with the cathode, and method for producing the cathode
JP4475774B2 (en) * 2000-08-22 2010-06-09 株式会社ユメックス Method for producing cathode for discharge lamp
JP2002352772A (en) * 2001-05-24 2002-12-06 Phoenix Denki Kk High-pressure discharge lamp
DE10137794B4 (en) * 2001-08-07 2008-06-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electrode for high pressure discharge lamps and high pressure discharge lamp
US6578970B2 (en) 2001-09-19 2003-06-17 Advanced Radiation Corporation Point-like lamp with anode chimney
JP3899898B2 (en) * 2001-10-30 2007-03-28 ウシオ電機株式会社 Short arc type mercury lamp
EP1741119B1 (en) * 2004-04-21 2019-04-03 Lumileds Holding B.V. Method for the thermal treatment of tungsten electrodes free from thorium oxide for high-pressure discharge lamps
DE102004043247B4 (en) * 2004-09-07 2010-04-15 Osram Gesellschaft mit beschränkter Haftung Electrode for high-pressure discharge lamps and high-pressure discharge lamp with such electrodes
AT9340U1 (en) * 2005-12-23 2007-08-15 Plansee Metall Gmbh METHOD FOR PRODUCING A HIGH-SEALED SEMI-FINISHED OR COMPONENT
CN100433238C (en) * 2006-03-13 2008-11-12 成都三普电光源实业有限公司 High brightness electrode for super high pressure mercury lamp
DE102006061375B4 (en) 2006-12-22 2019-01-03 Osram Gmbh Mercury high-pressure discharge lamp with an anode containing tungsten and potassium, which has a grain count greater than 200 grains per mm 2 and a density greater than 19.05 g / cm 3
JP5024466B1 (en) * 2011-03-10 2012-09-12 ウシオ電機株式会社 Short arc type discharge lamp
JP5823770B2 (en) * 2011-08-09 2015-11-25 プランゼー エスエー Short arc high pressure discharge lamp
AT15459U1 (en) * 2016-04-11 2017-09-15 Plansee Se anode
JP6826310B2 (en) * 2016-11-07 2021-02-03 ウシオ電機株式会社 Electrodes for discharge lamps and their manufacturing methods
JP7313791B2 (en) * 2018-08-23 2023-07-25 株式会社オーク製作所 Discharge lamp and method for manufacturing discharge lamp electrode
JP7098812B2 (en) * 2019-02-18 2022-07-11 株式会社東芝 Manufacturing method of cathode parts for discharge lamps, discharge lamps, and cathode parts for discharge lamps
US11043352B1 (en) 2019-12-20 2021-06-22 Varex Imaging Corporation Aligned grain structure targets, systems, and methods of forming

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325464C (en) * 1911-10-03 1920-09-10 Heinrich Leiser Dr Process for the production of mechanically resistant pressed molded bodies
FR2271663A1 (en) * 1974-05-13 1975-12-12 Philips Nv
DE3701212A1 (en) * 1986-03-24 1987-10-15 Toho Kinzoku Kk Tungsten electrode material
EP0262005A1 (en) * 1986-09-08 1988-03-30 EYQUEM, Société dite: Method of making a bimetallic central electrode with a platinum tip for a sparking plug, and electrode obtained by this method
EP0299230A1 (en) * 1987-07-14 1989-01-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Cathode for a high-pressure discharge lamp
WO1991002393A1 (en) * 1989-08-11 1991-02-21 Ford Motor Company Limited Forming an erosion resistant tip on an electrode
JPH0378929A (en) * 1989-08-22 1991-04-04 Yokogawa Electric Corp Manufacture of fine electrode
DE4229317A1 (en) * 1992-09-02 1994-03-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure discharge lamp
DE4442161C1 (en) * 1994-11-27 1996-03-07 Bayerische Metallwerke Gmbh Method for producing a shaped component for e.g. welding electrodes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678575A (en) * 1970-03-10 1972-07-25 Hitachi Ltd Manufacturing method of a magnetron anode
US4859239A (en) * 1988-12-20 1989-08-22 Gte Products Corporation Tungsten electrode and method of producing same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325464C (en) * 1911-10-03 1920-09-10 Heinrich Leiser Dr Process for the production of mechanically resistant pressed molded bodies
FR2271663A1 (en) * 1974-05-13 1975-12-12 Philips Nv
DE3701212A1 (en) * 1986-03-24 1987-10-15 Toho Kinzoku Kk Tungsten electrode material
EP0262005A1 (en) * 1986-09-08 1988-03-30 EYQUEM, Société dite: Method of making a bimetallic central electrode with a platinum tip for a sparking plug, and electrode obtained by this method
EP0299230A1 (en) * 1987-07-14 1989-01-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Cathode for a high-pressure discharge lamp
WO1991002393A1 (en) * 1989-08-11 1991-02-21 Ford Motor Company Limited Forming an erosion resistant tip on an electrode
JPH0378929A (en) * 1989-08-22 1991-04-04 Yokogawa Electric Corp Manufacture of fine electrode
DE4229317A1 (en) * 1992-09-02 1994-03-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure discharge lamp
DE4442161C1 (en) * 1994-11-27 1996-03-07 Bayerische Metallwerke Gmbh Method for producing a shaped component for e.g. welding electrodes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 250 (E - 1082) 26 June 1991 (1991-06-26) *

Also Published As

Publication number Publication date
DE59811983D1 (en) 2004-10-28
US6109995A (en) 2000-08-29
DE19738574A1 (en) 1999-03-11
ATE277423T1 (en) 2004-10-15
HU9802006D0 (en) 1998-10-28
HUP9802006A2 (en) 1999-06-28
JPH11135011A (en) 1999-05-21
EP0901150B1 (en) 2004-09-22
EP0901150A2 (en) 1999-03-10
CN1151537C (en) 2004-05-26
CN1210360A (en) 1999-03-10
HUP9802006A3 (en) 2001-03-28
HU221580B (en) 2002-11-28

Similar Documents

Publication Publication Date Title
EP0901150A3 (en) Electrode, procedure and device for its manufacture
EP0398512A3 (en) Blind rivet
EP0995533A3 (en) Method of manufacturing shaped bodies from bonded metal pipes
EP0823566A3 (en) Belleville spring and method of making same
EP0875756A3 (en) Additive preparation and method of use thereof
EP1666207A3 (en) Stepped shaft
EP1316730A3 (en) Rotary compressor
EP1323488A3 (en) Electrode for welding
EP1251170A3 (en) Method and reagent for treatment of NF-kappaB dependent animal diseases
EP1270960A3 (en) Actuating device for a safety system
DE3860498D1 (en) SLEEVE FOR A MEDICAL, IN PARTICULAR DENTAL, INSTRUMENT.
EP1076159A3 (en) Stator vane blank and method of forming the vane blank
NO20030237D0 (en) Process for the preparation of a winding band of sintered polytetrafluoroethylene
EP0900533A3 (en) Bijou creux
EP1088990A3 (en) Composite swash plate compressor piston
DE202006020810U1 (en) Combustion gas cartridge for a gas powered fastening device
MXPA02008632A (en) Method for producing a housing for a ball joint.
EP1336449A3 (en) Hollow piston and method for manucturing it by diffusion welding or sintering
ES2109612T3 (en) METHOD FOR THE MANUFACTURE OF A BLIND RIVET STEM.
ATE416169T1 (en) KINETIC DISSOLUTION OF A USEFUL INTERMEDIATE FOR THE PRODUCTION OF BENAZEPRIL AND ITS ANALOGUES
CA2350654A1 (en) Ink-following plunger for ballpoint pen and method for making same
US1152110A (en) Process of making spirally-wound rolls.
JPS561236A (en) Production of rough shape billet by forging
DE60133023D1 (en) NUCLEIC ACID OF A NEW HUMAN KINESIN ASSOCIATED GENE, PROTEIN CODED BY THE NUCLEIC ACID, PEPTIDE FRAGMENT THEREOF AND NUCLEIC ACID AND SIMILAR ANTICIPATING AGENTS
Geiger Near Net Shape Forming by Radial Extrusion

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE DE FR GB IT NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STEDELE, KLAUS

Inventor name: RICHTER, RUDOLF

Inventor name: ALTMANN, BERNHARD, DR.

K1C3 Correction of patent application (complete document) published

Effective date: 19990421

17P Request for examination filed

Effective date: 19990520

AKX Designation fees paid

Free format text: AT BE DE FR GB IT NL

17Q First examination report despatched

Effective date: 20021007

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 20040922

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59811983

Country of ref document: DE

Date of ref document: 20041028

Kind code of ref document: P

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20040922

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731

26N No opposition filed

Effective date: 20050623

EN Fr: translation not filed
BERE Be: lapsed

Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M.

Effective date: 20050731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59811983

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE

Effective date: 20111130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120906

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59811983

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE

Effective date: 20130205

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20120615

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59811983

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE

Effective date: 20130822

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 277423

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130714

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59811983

Country of ref document: DE

Effective date: 20140201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130714