GB716861A - A gettering-method for vacuum tubes and method for producing the gettering-substance - Google Patents

A gettering-method for vacuum tubes and method for producing the gettering-substance

Info

Publication number
GB716861A
GB716861A GB23881/50A GB2388150A GB716861A GB 716861 A GB716861 A GB 716861A GB 23881/50 A GB23881/50 A GB 23881/50A GB 2388150 A GB2388150 A GB 2388150A GB 716861 A GB716861 A GB 716861A
Authority
GB
United Kingdom
Prior art keywords
gettering
mixture
magnesium
vacuum tubes
zirconium
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
GB23881/50A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB716861A publication Critical patent/GB716861A/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
    • H01J7/183—Composition or manufacture of getters

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

716,861. Discharge apparatus. LOEWE OPTA AKT.-GES. Sept. 29, 1950 [Oct. 3, 1949], No. 23881/50. Class 39(1) A method of gettering vacuum tubes consists of using a mixture of a gettering material which acts by vaporizing or " flashing ", e.g. magnesium, with one which absorbs gas when hot, e.g. zirconium. The mixture consists initially of zirconium oxide and magnesium, in specified proportions. The reaction is carried out outside the tube, and results in a mixture of metallic magnesium, zirconium, and their oxides. This is made into a paste in known manner, and attached to electrodes inside the tube.
GB23881/50A 1949-10-03 1950-09-29 A gettering-method for vacuum tubes and method for producing the gettering-substance Expired GB716861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE716861X 1949-10-03

Publications (1)

Publication Number Publication Date
GB716861A true GB716861A (en) 1954-10-13

Family

ID=6626540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23881/50A Expired GB716861A (en) 1949-10-03 1950-09-29 A gettering-method for vacuum tubes and method for producing the gettering-substance

Country Status (1)

Country Link
GB (1) GB716861A (en)

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