GB457159A - Improvements in the gettering of evacuated envelopes - Google Patents

Improvements in the gettering of evacuated envelopes

Info

Publication number
GB457159A
GB457159A GB6254/36A GB625436A GB457159A GB 457159 A GB457159 A GB 457159A GB 6254/36 A GB6254/36 A GB 6254/36A GB 625436 A GB625436 A GB 625436A GB 457159 A GB457159 A GB 457159A
Authority
GB
United Kingdom
Prior art keywords
getter
envelope
cartridge
cap
march
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
GB6254/36A
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.)
Farnsworth Television Inc
Original Assignee
Farnsworth Television 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 Farnsworth Television Inc filed Critical Farnsworth Television Inc
Publication of GB457159A publication Critical patent/GB457159A/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)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

457,159. Obtaining high vacua. FARNSWORTH TELEVISION, Inc., 506, Crocker Building, San Francisco, U.S.A. March 2, 1936. No. 6254. Convention date, March 13, 1935. [Class 8 (i)] [See also Group XL] A method of evacuating an envelope, such as that of an electric discharge device, comprises vaporizing a getter within a container housed in the envelope and condensing the vaporized getter in a mass of finely-divided or porous material within the container to provide an active surface of relatively large dimensions which is exposed to the residual gas within the envelope. In the form described a discharge rectifier comprises an anode and an incandescent cathode to one leg of which is attached a getter cartridge 8 comprising an insulating tube 13 provided at each end with a metal cap. One cap 9 carries a quantity of getter material 11, and the other 10 is provided with perforations 12. The cartridge is filled with glass wool, glass powder or other finely divided material 15. The getter is evaporated by eddy current heating of the cap 9 and is deposited on the material 15, to which the residual gases have access through holes 12. In a modification, the getter cartridge is a porous ceramic capsule, in the pores of which the getter is deposited.
GB6254/36A 1935-03-13 1936-03-02 Improvements in the gettering of evacuated envelopes Expired GB457159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10882A US2082268A (en) 1935-03-13 1935-03-13 Getter cartridge

Publications (1)

Publication Number Publication Date
GB457159A true GB457159A (en) 1936-11-23

Family

ID=21747862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6254/36A Expired GB457159A (en) 1935-03-13 1936-03-02 Improvements in the gettering of evacuated envelopes

Country Status (4)

Country Link
US (1) US2082268A (en)
DE (1) DE706047C (en)
FR (1) FR803417A (en)
GB (1) GB457159A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445706A (en) * 1944-06-01 1948-07-20 Gen Electric Vapor-supplying cartridge
US2462813A (en) * 1946-06-18 1949-02-22 United Electronies Company Getter structure
USB134657I5 (en) * 1949-12-23
US2791715A (en) * 1952-09-06 1957-05-07 Bomac Lab Inc Water vapor replenisher for gaseous discharge switching devices
NL91550C (en) * 1954-07-23
US2908381A (en) * 1958-04-16 1959-10-13 Nuclear Corp Of America Inc Vacuum tube getter
US3102633A (en) * 1958-12-24 1963-09-03 Philips Corp Getter structure
IT971931B (en) * 1972-12-14 1974-05-10 Getters Spa GETTER DEVICE WITH POROUS SUPPORT
US4272259A (en) * 1976-07-21 1981-06-09 Union Carbide Corporation Gas gettering system
US4260653A (en) * 1979-10-22 1981-04-07 The United States Of America As Represented By The Secretary Of The Army Supports and preparation process for the manufacture of a calcium chemical pump for HF/DF laser
CN111599661B (en) * 2020-06-02 2023-05-26 中国科学院空天信息创新研究院 Getter fixing structure for space traveling wave tube

Also Published As

Publication number Publication date
FR803417A (en) 1936-09-30
US2082268A (en) 1937-06-01
DE706047C (en) 1941-05-16

Similar Documents

Publication Publication Date Title
US2121589A (en) Emissive incandescent cathode
GB457159A (en) Improvements in the gettering of evacuated envelopes
GB926387A (en) Indicator tube
US2988657A (en) Ion pump
GB495846A (en) Improvements in and relating to electric discharge devices
GB533107A (en) Improvements in and relating to methods of exhausting and sealing evacuated envelopes having a metal portion in which the seal is effected
US2159774A (en) Secondary electron emitter and method of making it
GB346957A (en) Improvements in and relating to electron discharge devices
US2042195A (en) Electric discharge device
GB520751A (en) Improvements in or relating to electron discharge devices
US3387908A (en) Electron vacuum tube getter and method of using the same
GB554958A (en) Improvements in and relating to methods of activating cathodes for electric discharge devices
GB449127A (en) Improvements in and relating to thermionic devices
GB300403A (en) Improvements relating to thermionic valves or electron discharge tubes
US1990180A (en) Gaseous electric discharge device
TW571328B (en) Getter assembly applied in vacuum display panel
GB628071A (en) Improvements in and relating to photo-sensitive discharge devices
GB267142A (en) Improvements in thermionic electrodes
GB265223A (en)
GB282754A (en) Improvements in and relating to electric discharge devices
GB514967A (en) Improvements in and relating to electric discharge devices
GB313729A (en) Improvements in and relating to metallic vapour electrical discharge devices
US3030167A (en) Electric discharge tube
GB389097A (en) Improvements in or relating to photoelectric cells
GB313292A (en) Improvements in and relating to metallic vapour lamps and gaseous discharge devices