US2003493A - Negative glowlamp - Google Patents
Negative glowlamp Download PDFInfo
- Publication number
- US2003493A US2003493A US348409A US34840929A US2003493A US 2003493 A US2003493 A US 2003493A US 348409 A US348409 A US 348409A US 34840929 A US34840929 A US 34840929A US 2003493 A US2003493 A US 2003493A
- Authority
- US
- United States
- Prior art keywords
- negative
- discharge
- electrodes
- glowlamp
- circuit
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/64—Cathode glow lamps
Definitions
- ne of said electrodes being disposed, in p81't, in proxin1ity to another electrode, the mmimum spacing of the electrodes heing such that the volt8ge required to iflitiate al discharge th0ugh the lamp is materiauy lowel' than the arcing volta.ge of said lamp 4-
- a glow dischar e lam of the negative glow ty e operable with a stable electrica1 discharge direcuy on a n approximately 110 voltisse1'nat ing current 1ighting circuit comp1'ising an envelope, an atn10sphere of neon therei!1, a.t a' Te Jerusalem ressure, a lurality of electrodes therein, at least one of which is com osed, at least in p8rt, of thoriun1 metal, one of said electrodes being disposed from said other electrode at a distance of about one mimmeter, the discharge initiating and 0perati1g potentials of said de vice being no greater
- a glow discharge lamp of the negative glow type 0per9ble with stable electrical discharge directly on an approximately 110 volt a1ter nEting current lighting circuit comprising an envelope, Etmosphere of neon therein alt a plessure of from three to thi1'ty n1illin1eters of mercury, plurauty of electrodes therein at least one of which is composed, in part, 0f thorlunn, one of said electrodes being dis osed from another electrode at e distance of about one
- gaseous conduction lamp comprising a n envelope contaizjng a rare gas at a substantia1 pressu1 ⁇ e, sa,id gas being selected in accordance with its starting and arcing voltage with e Spect t0 the peak voltage of the circuit in Which it is designed to operate, a cathode 9nd an anode within said envepe, Said cathode consisting of thorium, the discharge i!itiatin and o erating otentialof said device being no greatel than the otential of an approxinlately 110 to 220 volt alternating current 1ighting cicuit but the arcing otenial of said device being greater than the eak otentia1 0f said circuit.
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Description
ne of said electrodes being disposed, in p81't, in proxin1ity to another electrode, the mmimum spacing of the electrodes heing such that the volt8ge required to iflitiate al discharge th0ugh the lamp is materiauy lowel' than the arcing volta.ge of said lamp 4- A glow dischar e lam of the negative glow ty e operable with a stable electrica1 discharge direcuy on a n approximately 110 volt alte1'nat ing current 1ighting circuit comp1'ising an envelope, an atn10sphere of neon therei!1, a.t a' Te duced ressure, a lurality of electrodes therein, at least one of which is com osed, at least in p8rt, of thoriun1 metal, one of said electrodes being disposed from said other electrode at a distance of about one mimmeter, the discharge initiating and 0perati1g potentials of said de vice being no greater than the peak voltage of said 1ightin circuit but the arcing otenti l of s8id device being greatet than the peak voltage of said lighting circuit 5. A glow discharge lamp of the negative glow type 0per9ble with stable electrical discharge directly on an approximately 110 volt a1ter nEting current lighting circuit comprising an envelope, Etmosphere of neon therein alt a plessure of from three to thi1'ty n1illin1eters of mercury, plurauty of electrodes therein at least one of which is composed, in part, 0f thorlunn, one of said electrodes being dis osed from another electrode at e distance of about one |1illin1ete', the discha,ge initigting 3.nd op erating potentials of said lamp heing no greater thgn the peak volta,ge of said circtlit but the grclng voltage of s8id device being greater than the pak volt8ge of said ughting ccuit.
6. gaseous conduction lamp comprising a n envelope contaizjng a rare gas at a substantia1 pressu1`e, sa,id gas being selected in accordance with its starting and arcing voltage with e Spect t0 the peak voltage of the circuit in Which it is designed to operate, a cathode 9nd an anode within said envepe, Said cathode consisting of thorium, the discharge i!itiatin and o erating otentialof said device being no greatel than the otential of an approxinlately 110 to 220 volt alternating current 1ighting cicuit but the arcing otenial of said device being greater than the eak otentia1 0f said circuit.
7 A aseous conduction lam con1 rising an envelope, contajning a Tare gas at a Teduced p1'essure, said gas being selected in accordance with its startiIlg and arcing volta,ge with re Spect t0 the peak voltage 0f the circuit in Which it is designed to op rate 9' cathode and an node therein, Supporting conductors f0' Said anode and cathode, al s1ield extending 9(long substan tiany the entire length of said conductors for restricting discharge to the electrodes, Said` an ode and cathode bemg cylindrical, said cathode being composed of thorium, said anode a nd c8th- 0de being close together at one end to facilit8te starting and being much farther 8part 9t the other end, the discharge aLnd i11itlati:1g oten tials of Sa'id lamp being 110 greater thn the peak voltage 0f an approxinlately 110 to 220 volt alternatg cuIrent ughting cil'cuit but the arcing potentigl of said device being greater than the eak otential of said circuit HARVEY C RENTSCE1!ER. DONALD E. IENT.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US348409A US2003493A (en) | 1929-03-20 | 1929-03-20 | Negative glowlamp |
FR692232D FR692232A (en) | 1929-03-20 | 1930-03-18 | Negative incandescent lamp |
US458771A US1893304A (en) | 1929-03-20 | 1930-05-31 | Negative glow lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US348409A US2003493A (en) | 1929-03-20 | 1929-03-20 | Negative glowlamp |
Publications (1)
Publication Number | Publication Date |
---|---|
US2003493A true US2003493A (en) | 1935-06-04 |
Family
ID=23367915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US348409A Expired - Lifetime US2003493A (en) | 1929-03-20 | 1929-03-20 | Negative glowlamp |
Country Status (2)
Country | Link |
---|---|
US (1) | US2003493A (en) |
FR (1) | FR692232A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2623191A (en) * | 1947-03-20 | 1952-12-23 | Int Standard Electric Corp | Electric discharge tube |
US2715696A (en) * | 1951-08-28 | 1955-08-16 | Northrop Aircraft Inc | Gas-filled discharge lamp |
US4771207A (en) * | 1983-08-13 | 1988-09-13 | Thorn Emi Plc | Discharge lamp assembly |
US5027030A (en) * | 1989-11-30 | 1991-06-25 | Gte Products Corporation | Glow discharge lamp having zero anode voltage drop |
US5606218A (en) * | 1995-03-24 | 1997-02-25 | Osram Sylvania Inc. | Cold cathode subminiature fluorescent lamp |
-
1929
- 1929-03-20 US US348409A patent/US2003493A/en not_active Expired - Lifetime
-
1930
- 1930-03-18 FR FR692232D patent/FR692232A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2623191A (en) * | 1947-03-20 | 1952-12-23 | Int Standard Electric Corp | Electric discharge tube |
US2715696A (en) * | 1951-08-28 | 1955-08-16 | Northrop Aircraft Inc | Gas-filled discharge lamp |
US4771207A (en) * | 1983-08-13 | 1988-09-13 | Thorn Emi Plc | Discharge lamp assembly |
US5027030A (en) * | 1989-11-30 | 1991-06-25 | Gte Products Corporation | Glow discharge lamp having zero anode voltage drop |
US5606218A (en) * | 1995-03-24 | 1997-02-25 | Osram Sylvania Inc. | Cold cathode subminiature fluorescent lamp |
Also Published As
Publication number | Publication date |
---|---|
FR692232A (en) | 1930-10-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2769939A (en) | Read-out tube circuit | |
GB1219446A (en) | Gaseous glow indicator tube | |
US2003493A (en) | Negative glowlamp | |
US2654042A (en) | Integrally capacitively ballasted discharge lamp | |
US2487437A (en) | Cold cathode gaseous discharge tube | |
US2977508A (en) | Gaseous-discharge device and system | |
US1963963A (en) | Discharge apparatus and method | |
US1961618A (en) | Low voltage electric discharge tube | |
US2228276A (en) | Electrical gaseous discharge device | |
GB456402A (en) | Improvements in or relating to gaseous discharge lamps | |
US1915019A (en) | Gaseous electric discharge device | |
US1980198A (en) | Electrooptical tube | |
US2042147A (en) | Electric discharge device | |
US2473831A (en) | Glow tube rectifier | |
US2592556A (en) | Gaseous-discharge device | |
US3258629A (en) | Cold cathode display device with fluorescent indicia anodes | |
US1815762A (en) | Electric discharge device | |
US2004585A (en) | Gaseous electric discharge device | |
US2228210A (en) | Gaseous relay device | |
US2039449A (en) | Gas-filled discharge tube system | |
US1878338A (en) | Gaseous conduction apparatus | |
GB644409A (en) | Improvements in electric discharge lamps | |
US2593429A (en) | Gas filled electric discharge device | |
US1971931A (en) | Gaseous electric discharge device | |
US2212921A (en) | Potential divider |