GB1206049A - Methods of machining perforate electrodes from pyrolytic graphite - Google Patents

Methods of machining perforate electrodes from pyrolytic graphite

Info

Publication number
GB1206049A
GB1206049A GB00234/68A GB1023468A GB1206049A GB 1206049 A GB1206049 A GB 1206049A GB 00234/68 A GB00234/68 A GB 00234/68A GB 1023468 A GB1023468 A GB 1023468A GB 1206049 A GB1206049 A GB 1206049A
Authority
GB
United Kingdom
Prior art keywords
blank
mask
nozzle
blasting
modification
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
GB00234/68A
Other languages
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1206049A publication Critical patent/GB1206049A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture

Landscapes

  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Carbon And Carbon Compounds (AREA)
GB00234/68A 1967-03-07 1968-03-01 Methods of machining perforate electrodes from pyrolytic graphite Expired GB1206049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR97682A FR1523248A (fr) 1967-03-07 1967-03-07 Perfectionnements aux procédés de fabrication d'électrodes en forme de grilles pour tubes électroniques, électrodes fabriquées à l'aide de ces procédés perfectionnés et tubes électroniques contenant de telles électrodes

Publications (1)

Publication Number Publication Date
GB1206049A true GB1206049A (en) 1970-09-23

Family

ID=8626466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00234/68A Expired GB1206049A (en) 1967-03-07 1968-03-01 Methods of machining perforate electrodes from pyrolytic graphite

Country Status (8)

Country Link
US (1) US3535758A (enExample)
JP (1) JPS4921593B1 (enExample)
CH (1) CH481486A (enExample)
ES (1) ES351281A1 (enExample)
FR (1) FR1523248A (enExample)
GB (1) GB1206049A (enExample)
NL (1) NL160675C (enExample)
SE (1) SE338371B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215426A (en) * 1988-03-03 1989-09-20 Bowthorpe Hellermann Ltd Masking tubular components
GB2264659A (en) * 1992-02-29 1993-09-08 Rolls Royce Plc Abrasive fluid jet machining
GB2299137A (en) * 1995-03-20 1996-09-25 Matra Marconi Space Uk Ltd Ion thruster accelerator grid
CN1321431C (zh) * 2003-09-09 2007-06-13 卫军民 一种大功率四极电子管及其制作方法

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1172330A (en) * 1967-04-28 1969-11-26 Tokyo Shibaura Electric Co An X-ray Tube
US4020535A (en) * 1975-08-01 1977-05-03 Metropolitan Circuits, Inc. Method of making an electro-discharge electrode
DE2613170B2 (de) * 1976-03-27 1978-10-12 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur Herstellung von Gitterelektroden für Elektronenröhren
FR2437060A1 (fr) * 1978-09-19 1980-04-18 Thomson Csf Procede de fabrication de grilles planes en graphite pyrolytique pour tubes electroniques
US4671022A (en) * 1982-08-30 1987-06-09 Williams David R Bathtub abrading system
US4595377A (en) * 1984-12-10 1986-06-17 Rockwell International Corporation Cold cathode fabrication for ring laser gyroscope
US5522760A (en) * 1994-08-22 1996-06-04 Cummins Engine Company, Inc. Method of microdeburring a bore
FR2733856B1 (fr) * 1995-05-05 1997-08-29 Thomson Tubes Electroniques Cathode pour canon a electrons a grille, grille destinee a etre associee avec une telle cathode et canon a electrons comportant une telle cathode
GB9915925D0 (en) * 1999-07-08 1999-09-08 Univ Loughborough Flow field plates
US6866561B2 (en) * 2003-04-01 2005-03-15 Anodizing Industries, Inc. Decorative bat
TR201909172T4 (tr) * 2008-10-07 2019-07-22 Mobius Prot Systems Ltd Şok emici mekanizma, araç ve uçak koltukları için yolcuların ayaklarını koruma cihazı ve koltukta oturan kişiyi darbelere karşı koruma yöntemi.
JP5793014B2 (ja) * 2011-07-21 2015-10-14 株式会社不二製作所 硬質脆性材料基板の側部研磨方法
EP3750477A1 (en) * 2015-05-07 2020-12-16 Ecom Medical, Inc. Systems and method for fabricating invasive ecg probe
CN109786778A (zh) * 2019-01-28 2019-05-21 威海南海碳材料科技研究院有限公司 一种全钒液流电池用复合双极板及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US767362A (en) * 1901-07-08 1904-08-09 Martin Tullgren Process of perforating music-sheets.
US2358710A (en) * 1941-06-27 1944-09-19 Harold R Helgeson Sandblast stencil and method of making the same
US2364536A (en) * 1943-08-13 1944-12-05 Gen Electric X Ray Corp Method of processing carbon electrodes
FR1323676A (fr) * 1962-02-28 1963-04-12 Thomson Houston Comp Francaise électrode pour tubes électroniques et procédé de sa fabrication
FR1344220A (fr) * 1962-03-02 1963-11-29 Thomson Houston Comp Francaise Grille pour tubes électroniques

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215426A (en) * 1988-03-03 1989-09-20 Bowthorpe Hellermann Ltd Masking tubular components
GB2264659A (en) * 1992-02-29 1993-09-08 Rolls Royce Plc Abrasive fluid jet machining
US5279075A (en) * 1992-02-29 1994-01-18 Rolls-Royce Plc Abrasive fluid jet machining
GB2264659B (en) * 1992-02-29 1995-05-24 Rolls Royce Plc Abrasive fluid jet machining
GB2299137A (en) * 1995-03-20 1996-09-25 Matra Marconi Space Uk Ltd Ion thruster accelerator grid
US5689950A (en) * 1995-03-20 1997-11-25 Matra Marconi Space Uk Limited Ion thruster with graphite accelerator grid
GB2299137B (en) * 1995-03-20 1999-04-28 Matra Marconi Space Uk Ltd Ion thruster
CN1321431C (zh) * 2003-09-09 2007-06-13 卫军民 一种大功率四极电子管及其制作方法

Also Published As

Publication number Publication date
SE338371B (enExample) 1971-09-06
JPS4921593B1 (enExample) 1974-06-03
DE1639168B2 (de) 1975-10-16
FR1523248A (fr) 1968-05-03
DE1639168A1 (de) 1971-01-28
NL160675C (nl) 1979-11-15
US3535758A (en) 1970-10-27
ES351281A1 (es) 1969-06-01
NL160675B (nl) 1979-06-15
NL6802589A (enExample) 1968-09-09
CH481486A (fr) 1969-11-15

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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