US3617797A - Pinch-base electric lamp with transversely arranged supply wires - Google Patents

Pinch-base electric lamp with transversely arranged supply wires Download PDF

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Publication number
US3617797A
US3617797A US824478A US3617797DA US3617797A US 3617797 A US3617797 A US 3617797A US 824478 A US824478 A US 824478A US 3617797D A US3617797D A US 3617797DA US 3617797 A US3617797 A US 3617797A
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US
United States
Prior art keywords
pinch
lamp
wires
supply wires
pole
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
US824478A
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English (en)
Inventor
Riksterus Auguste Johan Meijer
Jan Christiaan Pennekamp
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.)
US Philips Corp
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US Philips 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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3617797A publication Critical patent/US3617797A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/38—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/20—Sealing-in wires directly into the envelope

Definitions

  • the lamp of the type mentioned in the preamble is characterized in that the current supply wire and the pole wire secured to the same foil and incorporated in a pinch are arranged at right-angles to each other, and the current supply wire leaves the pinch through one of the lateral narrow boundary surfaces of said pinch.
  • a particularly short structural length of the lamp according to the invention is obtained when it is constructed so that the current supply wires which leave a pinch through one of its narrow lateral boundaries extend outside the lamp fully laterally of the pinch.
  • the boundary of the pinch remote from the space of the envelope has a ground surface.
  • said boundary surface is free from current supply wires. Therefore the pinch can be subjected to the grinding operation atthe area of said boundary surface, so that the said surface may serve as a reference surface for aligning the lamp in an associated optical system. In this manner a finished lamp can be given a prescribed light center length.
  • the currentsupply wires projecting from the lateral narrow boundary surfaces of the pinch consist of silicated molybdenum.
  • An advantageous method of manufacturing a lamp according to the invention is characterized in that one or a few combinations of foils having each two wires secured thereto at right-angles to each other are arranged in a jig while using a third wire to be threaded in said jig and secured to such a foil in such manner that the first and the second of the said wires secured to such a foil extend according to and at right-angles to, respectively, the longitudinal direction of the lamp to be manufactured, an envelope consisting of glass or quartz glass being then placed over said assembly after which the envelope is heated in the proximity of the foil and is squeezed in a gastight manner around the foils, a part of the current supply wire extending at right-angles to the foil becoming located outside one of the lateral narrow boundaries of the pinch.
  • the above-mentioned third wire secured to each of the foils only serves to fix the combinations of said foil with the two wires secured thereto at right-angles to each other during the manufacture of the pinch in a jig.
  • the lamp according to the invention may be constructed with one or with two seals as described, in the latter case on either end of the lamp.
  • the invention may furthermore be applied to electric filament lamps in which a filament is stretched between the pole wires or to electric discharge lamps in which the pole wires support the electrodes necessary for the discharge or serve as electrodes themselves.
  • FIG. I is a first embodiment of the lamp according to the invention. In this figure it is also shown in what manner a prescribed light center length can be given to such a lamp.
  • FIGS. 2, 3 and 4 diagrammatically show how the lamp according to the invention can be manufactured.
  • FIG. 5 shows a lamp in which the seal is manufactured by means of the method shown in FIGS. 2, 3 and 4.
  • the lamp shown in FIG. 1 comprises an envelope 10 consisting of quartz glass, the lower end of which is deformed to a flat pinch ll.
  • Said pinch comprises two metal foils l2 and 13, respectively.
  • the pole wires 14 and 15 support a filament 18.
  • the envelope 10 comprises a sealed exhaust tube 19.
  • the said end 25 of the pinch 11 is free from current supply wires.
  • the distance between the filament I8 and the end 25 of the pinch has a value a.
  • this requirement can be met in the lamp construction shown. This may be effected by grinding away the shaded lower portion 26 of the pinch 11 so that the end of the pinch becomes situated at 27 and the requirement regarding the light center length has been met.
  • supporting wires 43 and 44 are placed in two apertures 40 and 41, in a jig 42, which supporting wires are secured to metal foils 45 and 46.
  • Said metal foils 45 and 46 are similar to the metal foils 12 and 13 shown in FIG. I.
  • the current supply wires 47 and 48, respectively, and the pole wires 49 and 50, respectively, are secured to said metal foils 45 and 46.
  • a filament 51 is stretched between the pole wires 49 and 50.
  • a tubular envelope 52 consisting of quartz glass is then placed around said assembly, of which envelope only the lower side is shown. At its lower side said envelope comprises two slots 53 and 54, respectively, so that it can become to engage the upper side of the jig 42.
  • the current supply wires 47 and 48 actually project through the slots 53 and 54.
  • the jaws 55 and 56 of a pair of pincers are situated on either side of the envelope 52. These jaws have flat surfaces 57 and 58, respectively, comprising recesses 59 and 60, respectively.
  • the jaws 55 and 56 of the pincers are moved towards each other and the pinch 61 of the lamp shown in FIG. 5 is formed. Due to the presence of the recesses 59 and 60 in the flat surfaces 57 and 58 of the jaws, the current supply wires 47 and 48 projecting laterally from the pinch remain free from the surfaces of the pincers.
  • the product shown in FIG. 5 can be taken out of the jig.
  • the supporting wires 43 and 44 project from the end 64 of the pinch 61 remote from the lamp space 63. These ends which do not perform any function for operating the lamp can be cut. Furthermore, if desirable, in the manner as shown in FIG. 1, the light center length of the lamp can be adjusted by grinding away the pinch 61 at its boundary surface 64.
  • An electric lamp comprising a sealed glass bulb having a central axis and a pinched-base defining a bottom end and sides, at least two-spaced foils sealed in the pinch, at least two pole wires within the bulb, each being generally parallel with said axis and each having one end secured to one foil, a filament disposed within the bulb, the ends of the filament bridging the remote ends of the pole wires, at least two current supply wires, each having one end secured to one foil in the pinch and its remote end extending through the sides of the pinch generally transverse to the pole wires.
  • a lamp as defined in claim 10 wherein the base part of said pinch isground, defining a reference surface accurately spaced from the filament.
  • a lamp as defined in claim 10 further comprising two support wires, each having one end secured to one foil within a pinch and each having its remote end extending through the bottom of the pinch.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US824478A 1968-05-16 1969-05-14 Pinch-base electric lamp with transversely arranged supply wires Expired - Lifetime US3617797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6806902A NL6806902A (es) 1968-05-16 1968-05-16

Publications (1)

Publication Number Publication Date
US3617797A true US3617797A (en) 1971-11-02

Family

ID=19803648

Family Applications (1)

Application Number Title Priority Date Filing Date
US824478A Expired - Lifetime US3617797A (en) 1968-05-16 1969-05-14 Pinch-base electric lamp with transversely arranged supply wires

Country Status (8)

Country Link
US (1) US3617797A (es)
AT (1) AT296426B (es)
BE (1) BE733099A (es)
BR (1) BR6908921D0 (es)
DE (1) DE1922762A1 (es)
FR (1) FR2009897A1 (es)
GB (1) GB1211179A (es)
NL (1) NL6806902A (es)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753026A (en) * 1969-12-13 1973-08-14 Philips Corp Quartz lamp seal
US4088918A (en) * 1976-07-06 1978-05-09 Gte Sylvania Incorporated Incandescent lamp having embedded support wires
FR2493471A1 (fr) * 1980-07-07 1982-05-07 Edison Int Inc Dispositif d'eclairage electrique a mecanisme de support d'ampoule du type barrettes
US4542316A (en) * 1981-06-06 1985-09-17 Thorn Emi Plc Discharge lamps
EP0168031A2 (de) * 1984-07-13 1986-01-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe
US4739220A (en) * 1985-10-24 1988-04-19 Patent-Treuhand-Gesellschaft Fur Electrische Gluhlampen Mbh Method of making a single-based metal halide high-pressure discharge lamp, and lamp made according to the method
US20060043899A1 (en) * 2004-08-25 2006-03-02 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Electric lamp
US20060119275A1 (en) * 2004-12-06 2006-06-08 Patent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh Power supply system for a lamp and lamp having this power supply system
US20080050104A1 (en) * 2006-08-24 2008-02-28 Ushiodenki Kabushiki Kaisha Filament lamp and light-irradiation-type heat treatment device
US20080056693A1 (en) * 2006-08-29 2008-03-06 Star Progetti Tecnologie Applicate Spa Infrared heat irradiating device
US20080298787A1 (en) * 2007-05-29 2008-12-04 Ushiodenki Kabushiki Kaisha Filament lamp and light-irradiation-type heat treatment device
US20140355971A1 (en) * 2013-05-30 2014-12-04 Osram Sylvania Inc. Infrared Heat Lamp Assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947554C2 (de) * 1979-11-26 1982-01-14 David Richard Mt. Auburn Ia. Primus Schlauchkopf für eine Jauchepumpe
US4723092A (en) * 1985-10-24 1988-02-02 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Method of making a single-ended metal halide high-pressure discharge lamp, and single-ended lamp made according to the method
DE20008879U1 (de) * 2000-05-17 2001-09-27 Hugo Vogelsang Maschinenbau GmbH, 49632 Essen Pumpentankwagen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491237A (en) * 1947-05-17 1949-12-13 Westinghouse Electric Corp Manufacture of miniature lamps
US2705310A (en) * 1954-04-19 1955-03-29 Gen Electric Metal sleeve base terminal
US3036236A (en) * 1959-03-30 1962-05-22 Westinghouse Electric Corp Electric lamp and method of manufacture
GB1033717A (en) * 1964-05-19 1966-06-22 Ass Elect Ind Improvements relating to the mounting of electric incandescent lamps
US3443144A (en) * 1964-12-31 1969-05-06 Sylvania Electric Prod Infrared incandescent lamp
US3469140A (en) * 1967-02-13 1969-09-23 Westinghouse Electric Corp Single-ended electric incandescent lamp with improved base and terminal structure,and method of assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491237A (en) * 1947-05-17 1949-12-13 Westinghouse Electric Corp Manufacture of miniature lamps
US2705310A (en) * 1954-04-19 1955-03-29 Gen Electric Metal sleeve base terminal
US3036236A (en) * 1959-03-30 1962-05-22 Westinghouse Electric Corp Electric lamp and method of manufacture
GB1033717A (en) * 1964-05-19 1966-06-22 Ass Elect Ind Improvements relating to the mounting of electric incandescent lamps
US3443144A (en) * 1964-12-31 1969-05-06 Sylvania Electric Prod Infrared incandescent lamp
US3469140A (en) * 1967-02-13 1969-09-23 Westinghouse Electric Corp Single-ended electric incandescent lamp with improved base and terminal structure,and method of assembly

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753026A (en) * 1969-12-13 1973-08-14 Philips Corp Quartz lamp seal
US4088918A (en) * 1976-07-06 1978-05-09 Gte Sylvania Incorporated Incandescent lamp having embedded support wires
US4149103A (en) * 1976-07-06 1979-04-10 Gte Sylvania Incorporated Incandescent lamp having embedded support means
FR2493471A1 (fr) * 1980-07-07 1982-05-07 Edison Int Inc Dispositif d'eclairage electrique a mecanisme de support d'ampoule du type barrettes
US4363994A (en) * 1980-07-07 1982-12-14 Cortorillo Salvatore F Halogen lamp with strap-type bulb support mechanism
US4542316A (en) * 1981-06-06 1985-09-17 Thorn Emi Plc Discharge lamps
EP0168031A2 (de) * 1984-07-13 1986-01-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe
EP0168031A3 (en) * 1984-07-13 1987-12-23 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Electrical lamp
US4739220A (en) * 1985-10-24 1988-04-19 Patent-Treuhand-Gesellschaft Fur Electrische Gluhlampen Mbh Method of making a single-based metal halide high-pressure discharge lamp, and lamp made according to the method
US20060043899A1 (en) * 2004-08-25 2006-03-02 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Electric lamp
US20060119275A1 (en) * 2004-12-06 2006-06-08 Patent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh Power supply system for a lamp and lamp having this power supply system
EP1667204A3 (de) * 2004-12-06 2007-06-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Stromzuführungssystem für eine Lampe und Lampe mit diesem Stromzuführungssystem
US7304421B2 (en) * 2004-12-06 2007-12-04 Patent-Treuhand-Gesellschaft für elecktrische Glühampen mbH Power supply system for a lamp and lamp having this power supply system
US20080050104A1 (en) * 2006-08-24 2008-02-28 Ushiodenki Kabushiki Kaisha Filament lamp and light-irradiation-type heat treatment device
US7639930B2 (en) * 2006-08-24 2009-12-29 Ushiodenki Kabushiki Kaisha Filament lamp and light-irradiation-type heat treatment device
US20080056693A1 (en) * 2006-08-29 2008-03-06 Star Progetti Tecnologie Applicate Spa Infrared heat irradiating device
US7764871B2 (en) * 2006-08-29 2010-07-27 Star Progetti Tecnologie Applicate Infrared heat irradiating device
US20080298787A1 (en) * 2007-05-29 2008-12-04 Ushiodenki Kabushiki Kaisha Filament lamp and light-irradiation-type heat treatment device
US8014652B2 (en) * 2007-05-29 2011-09-06 Ushiodenki Kabushiki Kaisha Filament lamp and light-irradiation-type heat treatment device
US20140355971A1 (en) * 2013-05-30 2014-12-04 Osram Sylvania Inc. Infrared Heat Lamp Assembly
US10264629B2 (en) * 2013-05-30 2019-04-16 Osram Sylvania Inc. Infrared heat lamp assembly

Also Published As

Publication number Publication date
NL6806902A (es) 1969-11-18
AT296426B (de) 1972-02-10
DE1922762A1 (de) 1969-11-20
BE733099A (es) 1969-11-14
GB1211179A (en) 1970-11-04
FR2009897A1 (es) 1970-02-13
BR6908921D0 (pt) 1973-01-02

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