US3889154A - Vibrating filament lamp with auxiliary stationary filament - Google Patents

Vibrating filament lamp with auxiliary stationary filament Download PDF

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Publication number
US3889154A
US3889154A US509831A US50983174A US3889154A US 3889154 A US3889154 A US 3889154A US 509831 A US509831 A US 509831A US 50983174 A US50983174 A US 50983174A US 3889154 A US3889154 A US 3889154A
Authority
US
United States
Prior art keywords
filament
lamp
incandescent lamp
vibrating
stem
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
US509831A
Other languages
English (en)
Inventor
Wolfgang E Thouret
Rudolph Kaufman
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.)
Duro Test Corp
Original Assignee
Duro Test 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 Duro Test Corp filed Critical Duro Test Corp
Priority to US509831A priority Critical patent/US3889154A/en
Priority to ES435142A priority patent/ES435142A1/es
Priority to DE19752509305 priority patent/DE2509305A1/de
Priority to GB13760/75A priority patent/GB1488593A/en
Priority to FR7516084A priority patent/FR2286502A1/fr
Application granted granted Critical
Publication of US3889154A publication Critical patent/US3889154A/en
Assigned to CHEMICAL BANK reassignment CHEMICAL BANK ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DURO-TEST CORPORATION, INC., A NY CORP.
Anticipated expiration legal-status Critical
Assigned to DURO-TEST CORPORATION, INC. reassignment DURO-TEST CORPORATION, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEMICAL BANK
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated

Definitions

  • Another object is to provide a vibrating filament lamp using a secondary filament which is connected to adjust the electrical operating characteristics of the lamp.
  • Still a further object is to provide vibrating filament lamp having a secondary resistive element used to adjust the electrical operating characteristics of the lamp.
  • FIG. 1 is an elevational view of one form of lamp, a portion of which has been broken away;
  • a filament 20 formed as a loop of a desired suitable shape is provided.
  • the loop need not be entirely in the same plane.
  • Filament 20 is of a material having the necessary elastic properties to vibrate.
  • Such filaments can be made, for example, of carbon which is aged in a particular manner. Reference is made to the aforegoing patents for a more complete disclosure of the filament which, in itself, forms no part of the subject invention.
  • a permanent magnet 22 is held at one end' of a rod 23 whose other end is mounted to an extending button 25 of glass or other suitable insulating material located on top of stem 16.
  • the magnet 22 can be held to the rod by an adhesive, spot welding, or any other suitable means.
  • the permanent magnet 22 can be of any suitable material, for example, Alnico. Its field strength is selected and its orientation is such, with respect to filament 20, so as to interact with the alternating current flowing through the filament 20 to produce vibration thereof.
  • a series electrical connection is provided by having one end of vibrating filament connected to lead wire 18 at point 34.
  • the connection can be made by welding, clamping, etc.
  • the stem 16 also carries a wire insert 31, of nickle, molybdenum or other suitable material which is bent at a right angle to form a hook 33.
  • One end of the secondary filament 26 and the other end of the vibrating filament 20 are clamped together with hook 33 to form an electrical connection.
  • the other end of the secondary filament 26 is connected to the lead wire 19.
  • alternating current When alternating current is applied to the base terminals 13, 14 of the lamp, it passes through the series combination of the two filaments 20 and 26. Secondary filament 26 is stationary and incandeses to produce light. A voltage drop occurs across the secondary filament. The alternating current passing through the filament 20 interacts with the magnetic field produced by magnet 22 to cause the filament to vibrate back and forth out of its normal position, that is, when it is at rest.
  • the lamp of FIG. 1 produces a considerable amount of light output across the secondary filament which drops 75 volts. Also, the drop of 75 volts across the secondary filament leaves only 165 volts across the vibrating filament 20 which means that a fairly thin filament with good elastic properties can be used to produce the vibration.
  • FIG. 3 shows a further embodiment of the invention wherein the light output of the secondary element is of lesser importance and the electrical properties of the secondary element are selected primarily to adjust the total electrical characteristics of the lamp.
  • a lamp of the type shown in FIG. 3 has been constructed with the following electrical operating characteristics: I
  • resistor 40 can be selected to produce the required voltage drop on filament 20.
  • An incandescent lamp for operation from a source of alternating current comprising:
  • said envelope includes an internal stem, a rod held by said stern and said rod holding the means for producing the magnetic field, said rod comprising a part of said means for supplying the alternating current to the first filament.

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
US509831A 1974-09-27 1974-09-27 Vibrating filament lamp with auxiliary stationary filament Expired - Lifetime US3889154A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US509831A US3889154A (en) 1974-09-27 1974-09-27 Vibrating filament lamp with auxiliary stationary filament
ES435142A ES435142A1 (es) 1974-09-27 1975-02-27 Una lampara incandescente perfeccionada.
DE19752509305 DE2509305A1 (de) 1974-09-27 1975-03-04 Wechselstrombetriebene gluehlampe
GB13760/75A GB1488593A (en) 1974-09-27 1975-04-03 Vibrating filament lamp with auxiliary stationary filamen
FR7516084A FR2286502A1 (fr) 1974-09-27 1975-05-23 Lampe a filament vibrant avec un filament auxiliaire fixe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US509831A US3889154A (en) 1974-09-27 1974-09-27 Vibrating filament lamp with auxiliary stationary filament

Publications (1)

Publication Number Publication Date
US3889154A true US3889154A (en) 1975-06-10

Family

ID=24028259

Family Applications (1)

Application Number Title Priority Date Filing Date
US509831A Expired - Lifetime US3889154A (en) 1974-09-27 1974-09-27 Vibrating filament lamp with auxiliary stationary filament

Country Status (5)

Country Link
US (1) US3889154A (enExample)
DE (1) DE2509305A1 (enExample)
ES (1) ES435142A1 (enExample)
FR (1) FR2286502A1 (enExample)
GB (1) GB1488593A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD286680S (en) 1984-09-21 1986-11-11 Saiza Frank M Decorative light bulb for night light or the like
USD385366S (en) * 1992-07-17 1997-10-21 Rudiger Darius Paulmann Halogen lamp
USD410554S (en) * 1998-10-01 1999-06-01 Raymond Guyton Incandescent lamp
USD1039178S1 (en) * 2021-02-02 2024-08-13 Sengled Co., Ltd. Candle light bulb

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237053A (en) * 1964-02-21 1966-02-22 Robert J Kyp Electric light bulb with oscillating filament
US3548255A (en) * 1969-03-06 1970-12-15 Robert J Kyp Incandescent lamp with oscillating filament
US3549946A (en) * 1968-11-29 1970-12-22 Robert J Kyp Incandescent lamp with oscillating filament
US3790998A (en) * 1971-11-03 1974-02-12 R Kaufman Method of making a lamp with oscillating filament

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237053A (en) * 1964-02-21 1966-02-22 Robert J Kyp Electric light bulb with oscillating filament
US3549946A (en) * 1968-11-29 1970-12-22 Robert J Kyp Incandescent lamp with oscillating filament
US3548255A (en) * 1969-03-06 1970-12-15 Robert J Kyp Incandescent lamp with oscillating filament
US3790998A (en) * 1971-11-03 1974-02-12 R Kaufman Method of making a lamp with oscillating filament

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD286680S (en) 1984-09-21 1986-11-11 Saiza Frank M Decorative light bulb for night light or the like
USD385366S (en) * 1992-07-17 1997-10-21 Rudiger Darius Paulmann Halogen lamp
USD410554S (en) * 1998-10-01 1999-06-01 Raymond Guyton Incandescent lamp
USD1039178S1 (en) * 2021-02-02 2024-08-13 Sengled Co., Ltd. Candle light bulb

Also Published As

Publication number Publication date
DE2509305A1 (de) 1976-04-01
GB1488593A (en) 1977-10-12
FR2286502B3 (enExample) 1978-12-01
FR2286502A1 (fr) 1976-04-23
ES435142A1 (es) 1977-02-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CHEMICAL BANK, 277 PARK AVENUE, NEW YORK, NY A NEW

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DURO-TEST CORPORATION, INC., A NY CORP.;REEL/FRAME:005642/0094

Effective date: 19880829

AS Assignment

Owner name: DURO-TEST CORPORATION, INC., NEW JERSEY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEMICAL BANK;REEL/FRAME:007007/0504

Effective date: 19940510