US2185852A - Discharge device - Google Patents

Discharge device Download PDF

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Publication number
US2185852A
US2185852A US277497A US27749739A US2185852A US 2185852 A US2185852 A US 2185852A US 277497 A US277497 A US 277497A US 27749739 A US27749739 A US 27749739A US 2185852 A US2185852 A US 2185852A
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United States
Prior art keywords
cathode
anode
grid structure
envelope
discharge device
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
US277497A
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English (en)
Inventor
Klopprogge Martin
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.)
General Electric Co
Original Assignee
General Electric Co
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Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US2185852A publication Critical patent/US2185852A/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
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control

Definitions

  • Another object is to provide such tubes having a construction in is which all the lead-in conductors may be brought in through a single stem press.
  • the tube is constructed in such manher that the anode and cathode are arranged 90 in side by side relation in substantial parallelism and both are embraced by the grid structure.
  • the latter element is so formed in the region between the anode and cathode as to provide a restricted discharge passage of carefully regulated dimensions.
  • a glass envelope #6 which is assumed to enclose an ionizable medium such for example, as mercuiy vapor or argon gas or an appropriate combination of vapors and gases.
  • an ionizable medium such for example, as mercuiy vapor or argon gas or an appropriate combination of vapors and gases.
  • an indirectly heated cathode I I of elongated configuration and a cooperating-anode l2 which is' substantially parallel with the cathode.
  • these electrodes 50 are enclosed within a sheet metal grid structure H of generally tubular form. (By the word tubular in this connection, is meant any form having a substantially perimetrically complete contour whether such contour be circular or nona circular.)
  • Construction of the grid structure is such that the anode and cathode are respectively enclosed Within substantially separate chambers arranged in 'sideby-side relation and defined by the outer Walls of the structure and by a wall portion l5 Which extends transversely of the discharge path.”
  • the wall portion is provided with a restricted opening it which may be carefully adjusted as to dimensions to produce the desired control characteristic of the device.
  • the ends of them grid structure are closed by means of transverse insulating members !8 and 19 which form in 'combinationwith the grid structure a substan-.
  • ductors numbered to 29 inclusive, are sealed 30 1 into the stem press and connected with the various electrodes.
  • the construction described realizes the important advantage of providing a shielded discharge system which is supported and energized entirely from one end of the discharge envelope.
  • FIG. 3 there is shown an alternative embodiment of the invention.
  • parts corresponding to elements already described in connection with Fig. l are similarly numbered.
  • FIG. 3 Another feature of difference between the device of Fig. 3 and that of Fig. 1 lies in the manner of support of the electrode elements.
  • the wall of the discharge envelope H is drawn in at the upper portion to provide a section 33 of reduced diameter.
  • the supports 22 and 23" provided for the grid structure extend into this reduced section and are supported by it through the agency of relatively flexible elements 36 and 31 which are of such size as to engage the wall of the envelope. This feature is best shown in 5 Fig. 5.
  • the grid lead-in conductor is shown as being sealed at 38 through the upper part of the envelope. However, it may alternatively be introduced through the stem press in the manner illustrated in Fig. l.
  • An electric discharge device comprising an envelope containing an ionizable medium and provided with a reentrant stem press at one end thereof, an elongated anode and cathode arranged in substantial parallelism within said envelope and extending in substantially the same direction as the said stem press, a grid structure forming a pair of elongated chambers which are positioned in side-by-side relation and which respec- 9 tively enclose the anode and cathode, said chambers being in communication with one another only through a relatively narrow opening defined by a portion of said grid structure, and a plurality of lead-in conductors extending through said stem press and respectively connecting with said anode, cathode and grid structure.
  • An electric discharge device comprising an I envelope containing an ionizable medium, an elongated anode and cathode mounted in substantial parallelism within said envelope, a generally tubular and imperforate grid structure enclosing said anode and cathode, said grid structure being constricted along an axial plane thereof to limit the discharge path between the anode and cathode to a relatively narrow opening.
  • An electric discharge device comprising a relatively elongated envelope, an anode and cathode mounted in side-by-side relation within the envelope and having opposed surfaces which parallel the major axis of the envelope, and a grid structure forming a pair of chambers which are also in side-by-side relation and which respectively enclose the anode and cathode, said chambers being in communication with one another only through a relatively narrow opening defined by a portion of said grid structure.

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US277497A 1938-04-19 1939-06-05 Discharge device Expired - Lifetime US2185852A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2185852X 1938-04-19

Publications (1)

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US2185852A true US2185852A (en) 1940-01-02

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US277497A Expired - Lifetime US2185852A (en) 1938-04-19 1939-06-05 Discharge device

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US (1) US2185852A (fr)
FR (1) FR853239A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620460A (en) * 1941-04-10 1952-12-02 Gen Motors Corp Gas tube
US2770751A (en) * 1953-02-27 1956-11-13 Rca Corp Construction of gas-filled tubes, particularly shielding
US2813217A (en) * 1952-03-18 1957-11-12 Rca Corp Electrode arrangement for gas tubes
US2840744A (en) * 1957-02-21 1958-06-24 Tung Sol Electric Inc Thyratron
US3017533A (en) * 1956-05-08 1962-01-16 Rca Corp Auxiliary discharge gas amplifier and the like

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620460A (en) * 1941-04-10 1952-12-02 Gen Motors Corp Gas tube
US2813217A (en) * 1952-03-18 1957-11-12 Rca Corp Electrode arrangement for gas tubes
US2770751A (en) * 1953-02-27 1956-11-13 Rca Corp Construction of gas-filled tubes, particularly shielding
US3017533A (en) * 1956-05-08 1962-01-16 Rca Corp Auxiliary discharge gas amplifier and the like
US2840744A (en) * 1957-02-21 1958-06-24 Tung Sol Electric Inc Thyratron

Also Published As

Publication number Publication date
FR853239A (fr) 1940-03-13

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