FR871659A - Manufacturing process of indirectly heated cathodes intended for electric discharge tubes - Google Patents

Manufacturing process of indirectly heated cathodes intended for electric discharge tubes

Info

Publication number
FR871659A
FR871659A FR871659DA FR871659A FR 871659 A FR871659 A FR 871659A FR 871659D A FR871659D A FR 871659DA FR 871659 A FR871659 A FR 871659A
Authority
FR
France
Prior art keywords
manufacturing process
electric discharge
discharge tubes
indirectly heated
heated cathodes
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR871659A publication Critical patent/FR871659A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR871659D 1940-04-23 1941-04-21 Manufacturing process of indirectly heated cathodes intended for electric discharge tubes Expired FR871659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL224493X 1940-04-23

Publications (1)

Publication Number Publication Date
FR871659A true FR871659A (en) 1942-05-05

Family

ID=19779564

Family Applications (1)

Application Number Title Priority Date Filing Date
FR871659D Expired FR871659A (en) 1940-04-23 1941-04-21 Manufacturing process of indirectly heated cathodes intended for electric discharge tubes

Country Status (4)

Country Link
BE (1) BE441262A (en)
CH (1) CH224493A (en)
FR (1) FR871659A (en)
NL (1) NL54818C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012035150A3 (en) * 2010-09-17 2012-05-18 Heinrich Gillet Gmbh Method for encasing a body of an exhaust gas system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2100530A1 (en) * 1992-09-02 1994-03-03 Michael W. Bogart Needle curving apparatus
US5526666A (en) * 1992-10-09 1996-06-18 United States Surgical Corporation Apparatus for forming curved rectangular bodied needles
CA2106791A1 (en) * 1992-10-09 1994-04-10 Michael W. Bogart Needle curving apparatus
US5388441A (en) * 1992-12-29 1995-02-14 United States Surgical Corporation Needle curver with automatic feed

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012035150A3 (en) * 2010-09-17 2012-05-18 Heinrich Gillet Gmbh Method for encasing a body of an exhaust gas system
CN103221160A (en) * 2010-09-17 2013-07-24 田纳科有限责任公司 Method for encasing a body of an exhaust gas system
CN103221160B (en) * 2010-09-17 2015-06-17 田纳科有限责任公司 Method for encasing a body of an exhaust gas system, roiling device and component for gas exhaust device
US9206730B2 (en) 2010-09-17 2015-12-08 Tenneco Gmbh Method for encasing a body of an exhaust gas system
US9903252B2 (en) 2010-09-17 2018-02-27 Tenneco Gmbh Method for encasing a body of an exhaust gas system

Also Published As

Publication number Publication date
CH224493A (en) 1942-11-30
BE441262A (en)
NL54818C (en)

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