US2014781A - Electron discharge device - Google Patents

Electron discharge device Download PDF

Info

Publication number
US2014781A
US2014781A US5321A US532135A US2014781A US 2014781 A US2014781 A US 2014781A US 5321 A US5321 A US 5321A US 532135 A US532135 A US 532135A US 2014781 A US2014781 A US 2014781A
Authority
US
United States
Prior art keywords
envelope
electron discharge
glass
discharge device
outwardly extending
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 - Lifetime
Application number
US5321A
Other languages
English (en)
Inventor
Rothe Horst
Rzehulka Rudolf
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Application granted granted Critical
Publication of US2014781A publication Critical patent/US2014781A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H01J5/44—Annular seals disposed between the ends of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/32—Anodes
    • H01J19/34—Anodes forming part of the envelope
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0003—Anodes forming part of vessel walls
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0034—Lamp bases
    • H01J2893/0036—Lamp bases having wires, ribbons or tubes placed between two vessel walls and being perpendicular to at least one of said walls

Definitions

  • This invention relates to electron discharge tubes and particularly to improvements in the mount and stem construction of electron discharge tubes having metal envelopes.
  • Certain conventional types of high power tubes are so constructed that a part of the wall of the envelope of the tube is of metal and serves as the anode. This construction may also be used in low power tubes intended for use in receivers and amplifiers, and favorable results have been obtained with these low power tubes, particularly with respect to their ability to radiate heat and thus handle greater loads. In this type of low power tube, however, dimculties in construction,.
  • the electrodes were usually assembled in substantially the same way as for tubes having glass envelopes.
  • the electrode system was mounted on a stem having a conventional press and extending downwards into a plate shaped bottom.
  • the seal between the metal envelope and the stem was made by means of a glass ring fused to the envelope and in turn fused to the plate shaped bottom of the stem.
  • the manufacture of such a metal wall tube was thus carried out in substantially the same manner and involved the same cost as in the case of glass envelope tubes.
  • the outer dimensions of the tube were not materially changed, and as the height of the tube as well as its largest diameter was determined by the press and the plate bottom of the stem, these tubes have not been any smaller than glass velope tubes.
  • the object of our invention is to provide an electron discharge tube which has a metal envelope, and which is simpler in construction, cheaper to manufacture, and substantially smaller and lighter than the conventional metal envelope tube, making it more adaptable for portable apparatus.
  • the metal envelope is fused to a glass extension which is joined with the other parts of the wall of the vessel by means of an annular press in which are embedded the electrode lead-ins.
  • tubular metal envelope I closed at the top and serving at the same time as an anode of the electrode system is somewhat flared or widened at the bottom and terminates in a flange I by means of which it is fused to an annular glass member or ring 2 provided with 5 shaped closure member I slightly concave and having an outwardly extending lip or flange 1' which registers with and is fused to lip 2' on the glass ring 2 by heating the lips and pressing them 15 together in rotating sealing machines upon the electrode lead-ins 8, 9 positioned radially of the envelope and between the glass lips which form an outwardly extending annular press around the periphery of the tubular envelope.
  • the lead-in 20 wires are preferably so stiff that they position the inner electrode system longitudinally in the metal envelope. These lead-ins may also serve as the tube contacts.
  • An exhaust tube i0 is provided on the glass plate or disk shaped closure 25 member I in the usual manner and is sealed tight after the envelope is exhausted.
  • An electron discharge device having a tubular metal envelope closed at one end and having a portion of larger diameter at its open end, electrodes mounted within said envelope, a glass member sealed to the open end of said envelope and provided with an outwardly extending lip, a glassclosure member having an outwardly extending lip in registry with the lip on said glass member, said lips being sealed together to form an outwardly extending annular press and leadins sealed in said press and connected to the electrodes within said metal envelope.
  • An electron discharge device having a tubular metal envelope closed at one end, and a flange at the open end of larger diameter than the tubular portion of said envelope, electrodes posi- 55 tioned and supported within said envelope, a glass ring secured to said flange and having an outwardly extending lip and a disk-shaped glass closure member having an outwardly extending lip registering with the lip on said glass ring, said lips being sealed together to form an outwardly extending annular press and lead-ins extending thru said press and connected to the electrodes within said metal envelope.
  • An electron discharge device having a tubular metal envelope closed at one end and provided with a flange of larger diameter than the tubular portion of the envelope at the open end,
  • an electrode mount within said metal envelope a glass ring having an outwardly extending lip sealed to said flange, a disk-shaped closure mem her having an outwardly extending lip registering with the lip on said ring member, said lips being sealed together to provide an annular press, still lead-in wires extending thru said press for longitudinally positioning said electrode mount within the envelope and electrically connected to said electrode mount, and an exhaust tube provided 1 in said disk-shaped closure member.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
US5321A 1933-06-27 1935-02-07 Electron discharge device Expired - Lifetime US2014781A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DET42685D DE653645C (de) 1933-06-27 1933-06-27 Entladungsgefaess
DE784894X 1934-02-02
DE434643X 1934-02-02
DE2014781X 1934-02-02
DE1934T0043537 DE689609C (de) 1933-06-27 1934-02-03 Entladungsgefaess
DET43567D DE718362C (de) 1933-06-27 1934-02-08 Entladungsgefaess

Publications (1)

Publication Number Publication Date
US2014781A true US2014781A (en) 1935-09-17

Family

ID=60387750

Family Applications (1)

Application Number Title Priority Date Filing Date
US5321A Expired - Lifetime US2014781A (en) 1933-06-27 1935-02-07 Electron discharge device

Country Status (4)

Country Link
US (1) US2014781A (de)
DE (3) DE653645C (de)
FR (1) FR784894A (de)
GB (1) GB434643A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885588A (en) * 1954-01-22 1959-05-05 Dale K Wilde Ruggedized high frequency electron tube
US3217088A (en) * 1962-11-30 1965-11-09 Owens Illinois Glass Co Joining glass members and encapsulation of small electrical components

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762234C (de) * 1936-01-09 1952-12-22 Aeg Elektrisches Entladungsgefaess aus keramischem Werkstoff
DE742717C (de) * 1937-09-02 1943-12-09 Telefunken Gmbh Roehrensockel mit am Umfang verteilten Elektrodenanschluessen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885588A (en) * 1954-01-22 1959-05-05 Dale K Wilde Ruggedized high frequency electron tube
US3217088A (en) * 1962-11-30 1965-11-09 Owens Illinois Glass Co Joining glass members and encapsulation of small electrical components

Also Published As

Publication number Publication date
DE718362C (de) 1942-03-10
FR784894A (fr) 1935-07-27
DE689609C (de) 1940-03-28
GB434643A (en) 1935-09-05
DE653645C (de) 1937-11-29

Similar Documents

Publication Publication Date Title
US2014781A (en) Electron discharge device
GB638139A (en) Improvements in and relating to electron discharge devices
US2708250A (en) Tube assembly
US2074864A (en) Electron discharge device
US2184939A (en) Weld splash shield
US2521364A (en) Electron discharge device for high frequency
US2288380A (en) High frequency radio tube
US2472942A (en) Electron tube
US2250184A (en) Electron discharge tube
US2225465A (en) Electron discharge device
US2263396A (en) Lead-in shield
US2171226A (en) Electron discharge device
US2289588A (en) Electron discharge tube
US2441315A (en) Electron gun mounting
US2456714A (en) Thermionic cathode and heater
US2451557A (en) Electron tube for high frequency
US2250183A (en) Electron discharge tube and method of manufacture
US2107353A (en) Lead-in for electron discharge devices
US2184841A (en) Electric discharge tube
US2376040A (en) Electron tube
US2609517A (en) Ultrahigh frequency electron tube
US2460132A (en) Electrical discharge device
US3084274A (en) Electron tube
US2045663A (en) Electron discharge device
US2449256A (en) External anode power amplifier and oscillator tube