US1930148A - Gaseous electric discharge device - Google Patents

Gaseous electric discharge device Download PDF

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Publication number
US1930148A
US1930148A US482222A US48222230A US1930148A US 1930148 A US1930148 A US 1930148A US 482222 A US482222 A US 482222A US 48222230 A US48222230 A US 48222230A US 1930148 A US1930148 A US 1930148A
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US
United States
Prior art keywords
electric discharge
discharge device
gas
container
gaseous electric
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
US482222A
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English (en)
Inventor
Pirani Marcello
Ewest Hans
Reger 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 US1930148A publication Critical patent/US1930148A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp

Definitions

  • the present invention relates generally to-gaseous electric discharge devices and more particularly the invention relates to means for feeding gas replenishments to luminescent gas lamp devices similar to those described in co-pending application Serial Number 381,036, filed July 25, 1929 being the invention of Marcello Pirani and Kurt Nitschke.
  • the gas feeding means of the application referredto comprises a gas evolving material, a heater element for said material, said heater element being connected into the circuit of the electric discharge device at a determined value of the current density of the discharge device by a governor connected in series with one of the electrodes of said gaseous electric discharge device.
  • the object of the present invention is to avoid an oversupply of gas replenishments to a gaseous electric discharge device even with a fluctuating voltage in the main supply source to said device.
  • the invention attains its object by connecting r the governor of the heater element in parallel to the electrodes of the gaseous electric discharge device.
  • the cutting into and out of circuit of the heater element of the gas evolving material is controlled only by the changes in the voltage drop across the electric discharge device which, as is well known in the art, depends on the gas pressure thereof, and is not affected by fluctuations in the voltage of the supply circuit.
  • Fig. 1 is a side elevational view of a gaseous electric discharge device partly in section, the electrical circuits therefor being shown schematically.
  • Fig. 2 is a side elevational View of a gaseous electric discharge device and a thermostatic governor, the electrical circuits therefor being shown schematically, and
  • Fig. 8 is a side elevation of a gaseous electric discharge device and a different type of thermostatic governor, the electrical circuits therefor being shown schematically.
  • the gaseous electric discharge device 1 has the usual sheet metal electrodes 2 which are connected to the secondary 4 of transformer 4, 5 by leads 3.
  • the primary 5 of said transformer 4, 5 is connected to a current source, which is of the usual commercial potentials, through a choke coil 6 and the lead 15.
  • a rod 14 made of a sintered mixture of a gas evolving material and a flux material, as disclosed in the aforementioned application, is sealed into offset chamber 13.
  • Said rod 14 has a heating filament or wire 12 wound around it and evolves gas only when heated.
  • Two contacts 10 are connected into the leads 16 of the heater element 12, from which branch 011 the choke coil 6 and the lead 15 of transformer 4, 5.
  • the gaseous electric discharge device shown in Fig. 2 has oxide electrodes 2' which are connected directly to the supply circuit of the usual commercial voltages by leads 3 needing no transformer. Said oxide electrodes 2' may be heated by the line potential or by a heater element wound around them and connected to the line potential.
  • heater element 12 is wound around a container 14 which has therein a pulverized gas evolving material.
  • the governor is a thermostatic switch consisting of a chamber 23 containing an inert gas, a quantity of mercury 25 suflicient to bridge contacts 10 and having sealed therein a heating coil 24.
  • Said heating coil 24 is connected in parallel to electrodes 2 by leads 22 so that the heat radiated by coil 24 is governed by the potential of the discharge device 1.
  • heater element 12 then remains in the circuit until normal gas pressure is restored in the gaseous electric discharge device 1.
  • the gaseous electric discharge device and the circuits therefor shown in Fig. 3 are similar to those of Fig. 2 with the exception of the thermostatic governor.
  • the thermostatic governor comprises a container 26 having a bimetallic strip 27- provided with a heater element 28 which is connected in parallel with the electrodes 2' by leads 22. Said bimetallic strip 27 is connected into lead 16 of the heating circuit and carries one of the two contacts 10. With normal conditions of gas pressure present in the gaseous electric discharge device 1 the potential on heater 28 is suflicient for said heater 28 to radiate enough heat to maintain bimetallic strip 27 in a bent position, in which position contacts 10 are separated.
  • gas pressure in gaseous electric discharge device 1 decreases less heat radiates from element 28 as hereinbefore described and bimetallic strip 2'7 resumes its closed position in which position contacts 10 touch each other to put heater element 12 in the circuit which heats the gas evolving material.
  • a luminescent electric discharge device coniprising a container, electrodes for said container, a luminescent gas filling in said container, a gas supply'chamber for said container, a gas evolving material in said chamber, means comprising a heating coil connected in parallel to said device to heat said gas evolving material and means responsive to changes in potential across said electric discharge device for controlling said heating means.
  • a luminescent electric discharge device comprising a container, electrodes for said container, a luminescent gas filling in said container, a gas supply chamber for said container, a gas evolving material in said chamber, a current source for said device, means comprising a heating coil connected to said source and in parallel to said device to heat said gas evolving material and means responsive to changes in the potential of said electric discharge device for controlling said heating means.
  • an electric discharge device comprising a container, electrodes for said container, agas filling in said container, a gas supply chamber for said container, a gas evolving material in said chamber, a current source for said device, a series choke coil for said device, means comprising a heating coil connected in parallel to said device to heat said gas evolving material and means connected to said source through said series choke coil and responsive to changes in the potential of said electric discharge device for controlling said heating means.
  • an electric discharge device comprising a container, electrodes for said container, a gas filling in said container, a gas supply chamber for said container, a gas evolving material in said chamber, a current source for said device, a current ballasting device connected to said source, means comprising a heating coil connected in parallel to said device to heat said gas evolving material and means connected to said source through said ballast device and responsive to changes in the potential of said electric discharge device to control said heating means.

Landscapes

  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US482222A 1929-10-19 1930-09-16 Gaseous electric discharge device Expired - Lifetime US1930148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE347559X 1929-10-19

Publications (1)

Publication Number Publication Date
US1930148A true US1930148A (en) 1933-10-10

Family

ID=6256361

Family Applications (1)

Application Number Title Priority Date Filing Date
US482222A Expired - Lifetime US1930148A (en) 1929-10-19 1930-09-16 Gaseous electric discharge device

Country Status (4)

Country Link
US (1) US1930148A (de)
FR (1) FR701026A (de)
GB (1) GB347559A (de)
NL (1) NL31015C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703967A (en) * 1985-05-23 1987-11-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Self-locking double retention redundant pull pin release
US5274305A (en) * 1991-12-04 1993-12-28 Gte Products Corporation Low pressure mercury discharge lamp with thermostatic control of mercury vapor pressure
US20060175975A1 (en) * 2003-07-28 2006-08-10 Koninklijke Philips Electronics N.V. Fluorescent lamp with auxiliary discharge and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL171755C (nl) * 1976-05-05 1983-05-02 Philips Nv Elektrische inrichting voorzien van een als ontladingsbuis uitgevoerde schakelaar alsmede schakelaar, in het bijzonder geschikt voor een dergelijke elektrische inrichting.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703967A (en) * 1985-05-23 1987-11-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Self-locking double retention redundant pull pin release
US5274305A (en) * 1991-12-04 1993-12-28 Gte Products Corporation Low pressure mercury discharge lamp with thermostatic control of mercury vapor pressure
US20060175975A1 (en) * 2003-07-28 2006-08-10 Koninklijke Philips Electronics N.V. Fluorescent lamp with auxiliary discharge and method for manufacturing the same

Also Published As

Publication number Publication date
NL31015C (de)
GB347559A (en) 1931-04-30
FR701026A (fr) 1931-03-10

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