FR44623E - Process for obtaining very high voids - Google Patents

Process for obtaining very high voids

Info

Publication number
FR44623E
FR44623E FR44623DA FR44623E FR 44623 E FR44623 E FR 44623E FR 44623D A FR44623D A FR 44623DA FR 44623 E FR44623 E FR 44623E
Authority
FR
France
Prior art keywords
obtaining
high voids
voids
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.)
Kemet Electronics Corp
Original Assignee
Kemet Laboratories Co Inc
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 Kemet Laboratories Co Inc filed Critical Kemet Laboratories Co Inc
Application granted granted Critical
Publication of FR44623E publication Critical patent/FR44623E/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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Discharge Lamp (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
FR44623D 1933-04-08 1934-03-31 Process for obtaining very high voids Expired FR44623E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US428964XA 1933-04-08 1933-04-08

Publications (1)

Publication Number Publication Date
FR44623E true FR44623E (en) 1935-03-19

Family

ID=21924309

Family Applications (2)

Application Number Title Priority Date Filing Date
FR710430D Expired FR710430A (en) 1933-04-08 1931-02-03 Process for obtaining very high voids
FR44623D Expired FR44623E (en) 1933-04-08 1934-03-31 Process for obtaining very high voids

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR710430D Expired FR710430A (en) 1933-04-08 1931-02-03 Process for obtaining very high voids

Country Status (3)

Country Link
AT (2) AT131769B (en)
FR (2) FR710430A (en)
GB (1) GB428964A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB521818A (en) * 1937-11-27 1940-05-31 Marconi Wireless Telegraph Co Improvements in or relating to vacuum tubes

Also Published As

Publication number Publication date
AT131769B (en) 1933-02-10
GB428964A (en) 1935-05-22
FR710430A (en) 1931-08-21
AT144517B (en) 1936-02-10

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