US1897473A - Electric glow lamp - Google Patents

Electric glow lamp Download PDF

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Publication number
US1897473A
US1897473A US377006A US37700629A US1897473A US 1897473 A US1897473 A US 1897473A US 377006 A US377006 A US 377006A US 37700629 A US37700629 A US 37700629A US 1897473 A US1897473 A US 1897473A
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US
United States
Prior art keywords
electrodes
glow lamp
electric glow
electric
shaped electrode
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
US377006A
Inventor
Friedrichsen 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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US1897473A publication Critical patent/US1897473A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/14—Indicating direction of current; Indicating polarity of voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0067—Electrode assembly without control electrodes, e.g. including a screen

Definitions

  • the present s of the 1 The object of the llflu'lltlOll is to provide a means whereby arity of various elecclearly and unmistakindicated.
  • the el ctrodes of the electric negaglow lamp which may be of the gas l 1 l l the electrodes.
  • e electrodes are mounted in the cylindri all glass chamber a in any known manner.
  • T 1e exhaust tube is attached to the base Z2.
  • the current leads d run through the pinched part of the base 5.
  • One current lead is attached to the cross shaped electiooe 6" and the other electrode is attached to the ring shaped electrode f.
  • both electrodes 6, "7" are arranged in plane and so placed with relation to each other that the ring shaped electrode 7" entirely surrounds the cross shaped electrode 6, and is concentric there with.
  • the device has the following i'haracte lStlCS.
  • a glow is induced around the cro saaped electrode, when the polarity is 5 right
  • a glow is i11- 377,006, and in Germany July 23, 1928.
  • An electric current indicator device comprising a gas filled 'lass chamber, electrodes sealed therein, one OI said electrodes having a cross shape, and another of said electrodes having an annular shape, the electrodes being mounted concentric with each other, and located in the same plane, the annular shaped electrode surrounding the cross shaped electrode.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Description

Feb. 14, 1933. H. FRIEDRICHSEN ELECTRIC GLOW LAMP Filed July 9, 1929 INVENTOR Heinrich Friedr ichsen ATTORNEY Patented Feb, 14, 1933 PATENT OFFIQE ELECTRIC COMPANY, A CORPORATION OF NEW YORK ELECTRIC GLOW LAMP Application filed July 9, 1929, Serial No.
The present s of the 1 The object of the llflu'lltlOll is to provide a means whereby arity of various elecclearly and unmistakindicated.
i see rdai'ice with the oh ect of tee 111- vention the el ctrodes of the electric negaglow lamp, which may be of the gas l 1 l l the electrodes.
e electrodes are mounted in the cylindri all glass chamber a in any known manner. T 1e exhaust tube is attached to the base Z2. The current leads d run through the pinched part of the base 5. One current lead is attached to the cross shaped electiooe 6" and the other electrode is attached to the ring shaped electrode f. As is sl own in the drawing both electrodes 6, "7" are arranged in plane and so placed with relation to each other that the ring shaped electrode 7" entirely surrounds the cross shaped electrode 6, and is concentric there with.
operation the device has the following i'haracte lStlCS. In testing the olarity of direct current a glow is induced around the cro saaped electrode, when the polarity is 5 right With wrong polarity a glow is i11- 377,006, and in Germany July 23, 1928.
duced around the ring shaped electrode. Used in an alternating current arrangement a glow discharge takes place around both electrodes.
While I have shown and described and have pointed out in the annexed claim certain novel features of the invention, it will be understood that Various omissions, substitutions and changes in the details of the device illustrated and in its use and operation may be made by those skilled in the art without departing from the spirit of the invention.
What I claim is new and desire to secure by Letters Patent of the United States, is:
An electric current indicator device, comprising a gas filled 'lass chamber, electrodes sealed therein, one OI said electrodes having a cross shape, and another of said electrodes having an annular shape, the electrodes being mounted concentric with each other, and located in the same plane, the annular shaped electrode surrounding the cross shaped electrode.
In witness whereof I have hereunto set my hand this 24th day of June, 1929.
HEINRICH FRIEDRIOHSEN.
US377006A 1928-07-23 1929-07-09 Electric glow lamp Expired - Lifetime US1897473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1897473X 1928-07-23

Publications (1)

Publication Number Publication Date
US1897473A true US1897473A (en) 1933-02-14

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ID=7748204

Family Applications (1)

Application Number Title Priority Date Filing Date
US377006A Expired - Lifetime US1897473A (en) 1928-07-23 1929-07-09 Electric glow lamp

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US (1) US1897473A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019365A (en) * 1958-08-26 1962-01-30 Bendix Corp Gas discharge device
US3854073A (en) * 1972-01-27 1974-12-10 Ims Corp Display device and control circuit therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019365A (en) * 1958-08-26 1962-01-30 Bendix Corp Gas discharge device
US3854073A (en) * 1972-01-27 1974-12-10 Ims Corp Display device and control circuit therefor

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