FR845880A - Composés métalliques actifs pour tubes à vide - Google Patents

Composés métalliques actifs pour tubes à vide

Info

Publication number
FR845880A
FR845880A FR845880DA FR845880A FR 845880 A FR845880 A FR 845880A FR 845880D A FR845880D A FR 845880DA FR 845880 A FR845880 A FR 845880A
Authority
FR
France
Prior art keywords
metal compounds
active metal
vacuum tubes
tubes
vacuum
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
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR845880A publication Critical patent/FR845880A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
FR845880D 1937-11-27 1938-11-10 Composés métalliques actifs pour tubes à vide Expired FR845880A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US176825A US2173258A (en) 1937-11-27 1937-11-27 Active metal compound for vacuum tubes

Publications (1)

Publication Number Publication Date
FR845880A true FR845880A (fr) 1939-09-04

Family

ID=22646000

Family Applications (1)

Application Number Title Priority Date Filing Date
FR845880D Expired FR845880A (fr) 1937-11-27 1938-11-10 Composés métalliques actifs pour tubes à vide

Country Status (2)

Country Link
US (1) US2173258A (fr)
FR (1) FR845880A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2743173A (en) * 1945-05-28 1956-04-24 Derge Gerhard Method of preparing metal and apparatus therefor
US2607901A (en) * 1946-12-31 1952-08-19 Bell Telephone Labor Inc Electronic discharge device
US2661336A (en) * 1948-11-17 1953-12-01 Rca Corp Getter material for electron discharge devices
US2869014A (en) * 1954-12-23 1959-01-13 Rca Corp Getter structure
US2937307A (en) * 1957-12-05 1960-05-17 Sylvania Electric Prod Electron tube
US2916648A (en) * 1957-12-05 1959-12-08 Sylvania Electric Prod Electron tube
US3416022A (en) * 1965-02-24 1968-12-10 Wagner Electric Corp Tungsten filament iodine cycle incandescent lamp with alkali metal getter
US3526803A (en) * 1968-01-30 1970-09-01 Westinghouse Electric Corp High-output fluorescent lamp with axial rod and amalgam mercury-vapor control means
US6377846B1 (en) 1997-02-21 2002-04-23 Medtronic Ave, Inc. Device for delivering localized x-ray radiation and method of manufacture
DE69823406T2 (de) * 1997-02-21 2005-01-13 Medtronic AVE, Inc., Santa Rosa Röntgenvorrichtung versehen mit einer Dehnungsstruktur zur lokalen Bestrahlung des Inneren eines Körpers
US5854822A (en) * 1997-07-25 1998-12-29 Xrt Corp. Miniature x-ray device having cold cathode
WO1999009580A1 (fr) * 1997-08-18 1999-02-25 Xrt Corp. Cathode obtenue a partir de materiau getter
US6289079B1 (en) 1999-03-23 2001-09-11 Medtronic Ave, Inc. X-ray device and deposition process for manufacture
US6464625B2 (en) 1999-06-23 2002-10-15 Robert A. Ganz Therapeutic method and apparatus for debilitating or killing microorganisms within the body

Also Published As

Publication number Publication date
US2173258A (en) 1939-09-19

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