GB492529A - Improvements in or relating to the production of high vacua - Google Patents

Improvements in or relating to the production of high vacua

Info

Publication number
GB492529A
GB492529A GB8086/37A GB808637A GB492529A GB 492529 A GB492529 A GB 492529A GB 8086/37 A GB8086/37 A GB 8086/37A GB 808637 A GB808637 A GB 808637A GB 492529 A GB492529 A GB 492529A
Authority
GB
United Kingdom
Prior art keywords
wire
relating
production
high vacua
vacua
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
GB8086/37A
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
Publication of GB492529A publication Critical patent/GB492529A/en
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
    • H01J7/186—Getter supports

Landscapes

  • Discharge Lamp (AREA)

Abstract

492,529. Discharge apparatus. ELEMET LABORATORIES CO., Inc. March 19, 1937, No. 8086. Convention date, May 8, 1936. Drawings to Specification. [Class 39 (i)] [Also in Groups XXVIII and XXII] High vacua in thermionic valves &c. are obtained by introducing therein a wire having a shell of nickel &c., and a core of volatile and reactive material such as barium; the wire is heated directly by passage of a current, or inductively, or by contact of the wire with a heated resistance wire, e.g. of molybdenum or tungsten., one of the two wires having an insulating coat.
GB8086/37A 1936-05-08 1937-03-19 Improvements in or relating to the production of high vacua Expired GB492529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492529XA 1936-05-08 1936-05-08

Publications (1)

Publication Number Publication Date
GB492529A true GB492529A (en) 1938-09-19

Family

ID=21958841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8086/37A Expired GB492529A (en) 1936-05-08 1937-03-19 Improvements in or relating to the production of high vacua

Country Status (3)

Country Link
FR (1) FR819612A (en)
GB (1) GB492529A (en)
NL (1) NL54193C (en)

Also Published As

Publication number Publication date
FR819612A (en) 1937-10-22
NL54193C (en) 1943-04-15

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