US2475369A - Base structure for electron discharge devices - Google Patents

Base structure for electron discharge devices Download PDF

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Publication number
US2475369A
US2475369A US620286A US62028645A US2475369A US 2475369 A US2475369 A US 2475369A US 620286 A US620286 A US 620286A US 62028645 A US62028645 A US 62028645A US 2475369 A US2475369 A US 2475369A
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US
United States
Prior art keywords
connections
bulb
electron discharge
valve
base structure
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
US620286A
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English (en)
Inventor
Besson Andre
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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Filing date
Publication date
Application filed by Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
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Publication of US2475369A publication Critical patent/US2475369A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base

Definitions

  • This invention is for improvements in or relating to electric discharge valves and more particularly to the connections extending between the electrodes and the exterior of the valve.
  • the present invention has for its object to reduce still further the length of the connections of the electrodes housed in bulbs having feet called glass header.
  • the reduction is achieved by means of a novel construction which is very robust.
  • the outgoing connections comprise metallic tubes closed at one end.
  • the open ends are welded in the glass bulb in such manner that the tubes extend inside the bulb.
  • the electrodes are connected directly to the tubes in any desired manner, for example by soldering.
  • connection of the bulb with the installation is eifected by a support the metallic pins of which extend into the tubes, thus ensuring good electrical contact.
  • Figure 1 illustrates a construction of valve hitherto proposed
  • FIG. 2 illustrates an arrangement constructed in accordance with the present invention
  • FIGS 3 and 4 illustrate details showing one of the advantages of the present invention.
  • Figure 1 illustrates the elementary arrangement of a valve without feet or cup, such as is now constructed.
  • the glass bulb l is arranged to house the electrodes 2, 3, 4 and 5 which are connected to outgoing connections 6, l, 8, 9, M, II and I2.
  • the bulb I is sealed by means of the cup-shaped base l3 which is welded to the bulb I along the bead Hi.
  • the connections 6 to ID extend through the cupshaped base l3 so as to form an hermetic seal therewith.
  • the connections II and I2 also exhermetic seal therewith.
  • M1 the above connections form at the exterior of the bulb supporting pins It to 2! intended to fit into sockets.
  • the sockets 22 to 2t of the main connections are mounted upon a base piece of insulatingv material 2? forming a support for the valve.
  • the outgoing connections comprise metallic tubes closed at one end. and open at the. other, suchas illustrated at 28 to Bil of Figure 2.
  • the tubes 28 to 34 are connected at their closed ends to the electrodes of the valve and they are connected at their open end into the wall of the cup-shaped base l3 or of the bulb i so as to form an hermetic seal therewith.
  • the tubular connections are connected in the circuits in which the valve operates, by means of pins, such as 35 to 39.
  • pins are made of a good conducting metal (phosphorous bronze) possessing a certain degree of flexibility. If the diameter of the pins is such that the pins become too rigid they may be slotted or otherwise recessed or shaped, to impart to them the necessary flexibility.
  • the pins are mounted upon a base of insulating material 2'4 mounted in a pedestal which constitutes the support of the valve.
  • valves are mounted on the pedestal so as to permit if necessary a certain degree of play or flexibility, thereby ensuring a degree of orientation in accordance with recognised practice in the construction of valve pedestals having a base of cup form and intended to avoid extreme stresses where outgoing connections extend through the bulb. It will be further appreciated that one of the objects of the invention is to reduce the stresses of this nature. The arrangements in question may thus be reduced to a minimum, which facilitates carrying them out. Naturally, any means of adjustment may be added to the valve and to the base in order to avoid errors of fitting the bulb on the support for example, by some pins larger than others, variations in the spacings, etc.
  • the system permits the feet to be made more efiiciently upon an industrial scale. Actually, the welding or solderin of the rod connection in the glass is usually eifected by hand. The replacement of the rod connection by tubes permits the connections to be easily welded by high frequency induction.
  • An electron discharge device for use with a support having at least one pin thereon, said device comprising an envelope wall, at least one electrode within the envelope, and at least one tube having an open end and a closed end and located Within the envelope between the electrode and the wall, said tube being sealed to the Wall at its open end and open toward the exterior of the device providing a recess for receiving a pin of said support.
  • An electron discharge device as set forth in claim 1, wherein the inner end of said tube constitutes a support for the electrode.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
US620286A 1943-11-19 1945-10-04 Base structure for electron discharge devices Expired - Lifetime US2475369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR985967T 1943-11-19

Publications (1)

Publication Number Publication Date
US2475369A true US2475369A (en) 1949-07-05

Family

ID=9537747

Family Applications (1)

Application Number Title Priority Date Filing Date
US620286A Expired - Lifetime US2475369A (en) 1943-11-19 1945-10-04 Base structure for electron discharge devices

Country Status (4)

Country Link
US (1) US2475369A (en, 2012)
BE (1) BE459179A (en, 2012)
FR (1) FR985967A (en, 2012)
NL (1) NL68590C (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082350A (en) * 1959-10-20 1963-03-19 Raytheon Co Electron discharge device having improved pin connections

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1823021A (en) * 1930-01-07 1931-09-15 Nicholas A Becker Toy christmas tree
US1872567A (en) * 1928-08-07 1932-08-16 Claude Neon Lights Inc Discharge tube
US1938656A (en) * 1931-02-06 1933-12-12 Rca Corp Audion amplifier
US2265341A (en) * 1938-07-02 1941-12-09 Firm Henschel Flugzeug Werke A Air- and gas-tight wall leadthrough for electric wiring systems, particularly in high altitude aircraft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872567A (en) * 1928-08-07 1932-08-16 Claude Neon Lights Inc Discharge tube
US1823021A (en) * 1930-01-07 1931-09-15 Nicholas A Becker Toy christmas tree
US1938656A (en) * 1931-02-06 1933-12-12 Rca Corp Audion amplifier
US2265341A (en) * 1938-07-02 1941-12-09 Firm Henschel Flugzeug Werke A Air- and gas-tight wall leadthrough for electric wiring systems, particularly in high altitude aircraft

Also Published As

Publication number Publication date
BE459179A (en, 2012)
FR985967A (fr) 1951-07-25
NL68590C (en, 2012)

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