US2192162A - Gas discharge tube - Google Patents

Gas discharge tube Download PDF

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Publication number
US2192162A
US2192162A US180475A US18047537A US2192162A US 2192162 A US2192162 A US 2192162A US 180475 A US180475 A US 180475A US 18047537 A US18047537 A US 18047537A US 2192162 A US2192162 A US 2192162A
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US
United States
Prior art keywords
anode
discharge
electrodes
electrons
grid
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
US180475A
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English (en)
Inventor
Kniepkamp Heinrich
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US2192162A publication Critical patent/US2192162A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens

Definitions

  • This invention relates to electron discharge devices, particularly to high voltage grid controlled gas discharge devices.
  • the .object of this invention is to provide an improved electron discharge device of the grid controlled gas discharge type particularly suit- 45 able forvuse at high voltages, and particularly such a device in which back-arcing or flash-over is substantially eliminated.
  • the plate and the control .electrodes have planar surfaces Afacing 50 each other and they have a sectional form such that the discharge space intervening lbetween the electrodes connects with the ambient space only through 'a narrow tortuous gap.
  • the rest of the two electrodes are exposed to the interior of the tubeenvelope and do not enclose each other with (Cl. Z50-27.5)
  • both of the electrodes are able to unimpededly radiate the heat dissipated in them.
  • confined l5 within the tube envelope I which contains a gaseous medium are a cathode 2, a plate or ⁇ anode 3, and a control grid 4 forming the electrode assembly.
  • the cathode 2 by the aid ofthe supporting rods 5 which at the same time function as current supply leads is anchored inthe press B.
  • the iilament or cathode is of the hollowtype, althoughit will be understood that any othertype of cathode or source of electron supply may be used in connection with ⁇ the invention.
  • the discharge space 'l is surrounded by a shield or screen 8 which at one end supports the control grid l4.
  • the said control grid just like the plate is preferably made Lof graphite. This insures two advantages in that both secondary emission may be practically sup" ⁇ pressed by convenient choice of the material and that satisfactory conditions for conducting away and radiating 'the heat are secured.
  • the thickness of the graphite grid is chosen comparatively great, the desideratum being to make thearea 9 radiating off heat from For instance, it hasl the grid as large as possible. been found to be quite advantageous to choose the thickness of the grid not less than one-tenth the grid diameter.
  • the drawing clearly shows what viewpoints are essential in choosing the sectional form of the electrodes facing each other.
  • the continuous annular projection lll of the control grid must so engage in the annular groove Il of the plate or anode that between the two surfaces I2 and I3 there remains but a narrow gapof, say, 1-2 mm. width.
  • Such electrons as happen to havey an outwardly directed speed component would then have to pass through this gap between the interfitting projections and recesses surrounding the discharge space between the electrodes, and they would have to alter the sense of ltheir night several times. As a consequence they would be so impeded in their motion that practically no electrons at all would be able to escape from the discharge space and reach the wall or shell of glass.
  • the space I4 is entirely shut oil" from the discharge.
  • the discharge vessel comprising an electrode assembly built in a way as hereinbefpre disclosed .will evidence no undesirable discharges even when operating with potentials between 20 and
  • the cross-sectional forms of the electrodes facing each other according to the invention may be chosen in diiferent ways. But care must be taken so that the discharge space between the electrodes is separated from the ambient by a gap presenting several changes in directions or curves.
  • the groove orvcurves could also be formed in the control grid, while the anode or plate is provided with an extension or elevation designed to fit into a groove of the control grid. This is shown, for instance, in Figure 2.
  • the anode or plate I8 has a co1- lar H9 which engages in a matching groove 20 of the control grid 2
  • An electron discharge device having an envelope containing a gaseous atmosphere,acathode within said envelope for emitting electrons and an anode electrode for receiving said electrons, a tubular control electrode completely enclosing 4"5 said cathode for segregating said cathode and anode and having a perforated surface throughv an electron discharge can take place, said anode le havinga surface presented across an intervening electrode free space to the perforated surface vof the control electrode for y,receiving the discharge, said anode surface being providedwith a continuous groove, and said control'electrodehaving a1 15 continuous projection surrounding the perforated surface and extending Within said groove out of f contact with the walls .of said groove to provide a tortuous gap around the discharge path between said surfaces of said anode and control 20 electrode.
  • An electron dischargefdevice having an ⁇ v en-' velope containing a gaseous atmosphere, a c ath-V ode for emitting electrons within said envelope, f
  • a tubuz lar control electrode completely enclosing saidr Y cathode for segregating said cathode and4 anode v 1 and having a perforated-surface through which an electron discharge can take place, said anode" l having a surface presented across ⁇ an intervening 'Im electrode free space to the perforated surface oi the control electrode for receiving the discharge, ⁇ said surfacesbeing provided with interiitting projections and recessesl surrounding the discharge space, said interiitting projections and yrecesses g being spaced to provide a tortuouS gap Surrounding .the discharge path between the anode andA T control electrode. v Y. 4.
  • An electron discharge device having an -envelope containing a gaseous atmosphera'a cathl4 6 ode within said yenvelcpefor emitting yelectrons and an anode for receiving saidelectrons, a tubular control electrode surrounding said cathode and closed at one end by a disc-like carbon member .provided with perforations through ,Vwhich electrons can pass,.
  • said anode havingy a surface opposite said disc-like carbon memberfor receiving electrons passing through the perforations in said disc-like carbon member, an annular groove surrounding said 'surface of Said anode and animi!
  • annular projection on said disc-like carbon member surrounding the vperforated surface of said f disc-likev carbon member and extending into said groove but out of contact with the walls .of said groove for providing a tortuous gap surroundingfr) the discharge path between the facing surfaces of the anode and control electrode.
  • An electron discharge device having a gas? eous atmosphere and containing a cathode for emitting electrons and an anode for receiving GO said electrons, a tubular control electrodel surrounding said cathode and having a closure member at each end, oneof said closure members 'being provided with perforations through which electrons can passto the anode, said anode hav ⁇ ing a surface presented tol the surface of said perforated closure member, one of' said surfaces being provided with a continuous ⁇ groove and4 the other of said surfaces with a continuous projection extending into said groove but lo'ut'ofr 70, ⁇ n

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Discharge Lamp (AREA)
  • Lasers (AREA)
US180475A 1936-12-29 1937-12-18 Gas discharge tube Expired - Lifetime US2192162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE482813X 1936-12-29

Publications (1)

Publication Number Publication Date
US2192162A true US2192162A (en) 1940-02-27

Family

ID=6542885

Family Applications (1)

Application Number Title Priority Date Filing Date
US180475A Expired - Lifetime US2192162A (en) 1936-12-29 1937-12-18 Gas discharge tube

Country Status (3)

Country Link
US (1) US2192162A (en, 2012)
GB (1) GB482813A (en, 2012)
NL (1) NL53014C (en, 2012)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428661A (en) * 1943-04-17 1947-10-07 Gen Electric Electric discharge device of the gas filled type
US2512538A (en) * 1949-07-26 1950-06-20 Atomic Energy Commission Electric discharge device
US2518879A (en) * 1945-02-03 1950-08-15 Kenneth J Germeshausen Hydrogen thyratron
US2556855A (en) * 1946-08-30 1951-06-12 Raytheon Mfg Co Gaseous discharge device
US2592556A (en) * 1947-09-25 1952-04-15 Kenneth J Germeshausen Gaseous-discharge device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428661A (en) * 1943-04-17 1947-10-07 Gen Electric Electric discharge device of the gas filled type
US2518879A (en) * 1945-02-03 1950-08-15 Kenneth J Germeshausen Hydrogen thyratron
US2556855A (en) * 1946-08-30 1951-06-12 Raytheon Mfg Co Gaseous discharge device
US2592556A (en) * 1947-09-25 1952-04-15 Kenneth J Germeshausen Gaseous-discharge device
US2512538A (en) * 1949-07-26 1950-06-20 Atomic Energy Commission Electric discharge device

Also Published As

Publication number Publication date
GB482813A (en) 1938-04-05
NL53014C (en, 2012)

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