US3859554A - Electric lamp with integral plastic base member - Google Patents

Electric lamp with integral plastic base member Download PDF

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Publication number
US3859554A
US3859554A US728471A US72847168A US3859554A US 3859554 A US3859554 A US 3859554A US 728471 A US728471 A US 728471A US 72847168 A US72847168 A US 72847168A US 3859554 A US3859554 A US 3859554A
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United States
Prior art keywords
base member
envelope
lamp
channels
conductors
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
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US728471A
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English (en)
Inventor
Luigi M Preziosi
Bernard R Fallon
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.)
Philips North America LLC
Original Assignee
Westinghouse Electric Corp
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Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US728471A priority Critical patent/US3859554A/en
Priority to GB22219/69A priority patent/GB1209282A/en
Priority to DE19691923665 priority patent/DE1923665A1/de
Priority to NL6907325A priority patent/NL6907325A/xx
Priority to FR6915522A priority patent/FR2008429A1/fr
Priority to JP44036904A priority patent/JPS4926669B1/ja
Application granted granted Critical
Publication of US3859554A publication Critical patent/US3859554A/en
Assigned to NORTH AMERICAN PHILIPS ELECTRIC CORP. reassignment NORTH AMERICAN PHILIPS ELECTRIC CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WESTINGHOUSE ELECTRIC CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/09—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for baseless lamp bulb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • B60Q3/14—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting through the surface to be illuminated
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/30—Manufacture of bases

Definitions

  • This invention relates to electric lamps and has particular reference to an electric incandescent lamp that has an integral plastic base member and is suitable for use with printed-circuit board components in automobiles and similar vehicles.
  • the automotive industry has designed and is presently using instrument panels that utilize a printed-circuit board having notched or keyed openings which receive specially designed lamp sockets.
  • a socket is described in US. Pat. No. 2,825,038 issued Feb. 25, 1958 to R. C. Woofter.
  • the socket comprises a plastic body having contactors and means disposed to interlockingly receive and engage a conventional incandescent lamp' having a metal bayonet type base.
  • the socket is provided with a flange and locking lugs that are arranged and adapted to clamp the socket in tightly seated engagement with the conductor portions of the circuit board when the assembled lamp-and-socket assembly is inserted into the circuit board and twisted or rotated a few degrees.
  • the plastic socket contains a pair of U-shaped metal contactors that are adapted to interlockingly engage the notched portion of a socalled wedge-base" type miniature incandescent lamp.
  • the lamp is terminated by a press seal that is formed on the end of the glass envelope and provided with transverse grooves or notches. The ends of lead wires are bent around the end of the press seal and into the notches and thus serve as the lamp contacts. Lamps of this type thus do not require a metal base and are referred to as baseless lamps.
  • a baseless buttsealed incandescent lamp be permanently fastened to a plastic socket of this general type (which thus serves as a base") by means of a ring or basing cement that joined the upper portion of the bulb neck to the inner peripheral or lip portion of the plastic base member, and then soldering the ends of the lead wires to two metal eyelets anchored in the bottom wall of the base.
  • a plastic socket of this general type which thus serves as a base
  • ring or basing cement that joined the upper portion of the bulb neck to the inner peripheral or lip portion of the plastic base member, and then soldering the ends of the lead wires to two metal eyelets anchored in the bottom wall of the base.
  • a more specific object is the provision of an integral lamp-and-base assembly that is rugged, devoid of shock hazards and utilizes a butt-seal or press-seal type lamp that is permanently fastened to a preformed plastic base member in accurate alignment therewith without inducing strains in or otherwise weakening the lamp envelope.
  • the aforesaid objects and other advantages are achieved in accordance with the present invention by providing a globular mass of solid fused glass on the outermost tip of the sealed end of the lamp envelope and embedding only this portion and an adjacent indented segment of the seal in the preformed plastic base member itself, or in a quantity of basing cement that is located at the bottom of the base cavity.
  • the plastic or cement
  • the plastic thus encapsulates the solid glass globule and extends around the laterally protruding shoulder of the globule and into the recessed or indented adjacent portion of the seal, which is also solid glass or has very thick walls due to the nature of the sealing operation.
  • the lamp envelope is thus securely interlocked with the base member by embedding only the strongest part of the sealed end of the bulb in the plastic or cement.
  • the ends of the lamp leads are connected to portions of resilient metal contactors that are recessed within the confines of the plastic base member.
  • the unit thus has a built-in safeguard against shock hazard.
  • a globule of fused glass is provided on the outer end of the press-seal and only this part and adjacent solid fused portion of the press-seal are embedded in the plastic base, or in the cement if the latter is used.
  • the partial embedment of the envelope seal in the plastic base is achieved by heating and softening the portion of the base located at the bottom of the base cavity by means of vibratory energy.
  • the vibrations have a frequency greater than 1,000 cycles per second and are introduced into the plastic by a suitably designed transducer, or by vibrating the lamp envelope and placing it in contact with the base.
  • the tip of the envelope seal is forced into the softened plastic until the latter flows over and behind the annular shoulder of the glass globule.
  • the sealed-in lamps can thus be rapidly and securely fastened to the plastic bases without affecting the lamp quality or altering the exterior configuration or dimensions of the preformed bases.
  • FIG. 1 is an enlarged front elevational view, partly in section, of an integral miniature electric incandescent lamp-and-base assembly that is adapted for use with a printed-circuit board or the like; 4
  • FIGS. 2 and 3 are side elevational and bottom pla views, respectively, of the lamp assembly shown in FIG.
  • FIG. 4 is a fragmentary cross-sectional view of the assembly along the line IV-IV of FIG. 3;
  • FIG. 5 is a plan view of the plastic base component shown in the preceding figures.
  • FIGS. 6 and 7 are front and side elevational views, respectively, of the metal contactor members shown in FIGS. 14;
  • FIG. 8 is. an elevational view of an alternative lamp embodiment that includes a protective end cap, the base member and cap being shown in cross-section to illustrate their construction;
  • FIG. 9 is a partly exploded view of the capped lampbase assembly illustrating the manner in which the protruding portions of the lead-in conductors and contactor members are spot welded before the plastic end cap is joined to the base component;
  • FIG. 10 is a plan view of the end cap
  • FIG. 11 is an exploded view of the sealed-in end of the lamp, the metal contactors, plastic base member, and end cap illustrating the manner in which they are assembled;
  • FIGS. 12 to 14 are fragmentary cross-sectional views of alternative lamp embodiments utilizing various types of contactor members and a partial filling of cement to join the lamp and base components together;
  • FIG. 15 is a similar view of still another embodiment utilizing a wedge-base lamp having a globular tip portion that is embedded in the plastic base member.
  • FIG. 1 there is shown an integral lamp-base assembly 15 which embodies the present invention and consists of a butt-sealed incandescent lamp l6 and a plastic base member 32 that are permanently joined together in operative relation by partly embedding the sealed end portion 17 of the lamp envelope 18 in the plastic base.
  • the lamp 16 is of the miniature type (T3 /2 for example) and consists of a tubular glass envelope 18 that contains an incandescible filament 20 of coiled tungsten wire that is held in the desired configuration by a pair of wire supports 22 that are embedded in a glass bead 24 in the usual manner.
  • the ends of the filament 20 are clamped in hooks formed on the ends of a pair of lead-in conductors 26 that are also embedded in and extend through the bead 24 and are hermetically sealed through opposite sides of the sealed end or butt scaled portion 17 of the envelope.
  • the butt seal 17 is terminated by a thick-walled indented or tapered segment 28 and a globule 29 of solid fused glass thus providing a circumferential and laterally protruding shoulder 30 which merges with a circumferential recess 31 that is defined by the adjoining indented segment 28.
  • the plastic base member 32 is preformed and, as will be noted in FIGS. 1-3, is terminated at one end by a rectangular shaped boss 34 that serves as a flat knoblike extension for gripping the assembly and mounting it on the circuit board, and is terminated at its opposite end by a cylindrical collar 38 that encircles the bulbous part of the envelope 18.
  • the collar 38 is provided with two integral lugs 40 that are diametrically opposite each other and are shaped to engage and effect a camlocking action with a printed-circuit board 52 (FIG. I) when the lamp assembly 15 is inserted into the keyed aperture 53 of the board and is twisted 0r rotated a few degrees.
  • the base 32 is also provided with a laterally projecting flange 42 that is located at the juncture of and merges with the rectangular boss 34 and cylindrical collar 38.
  • the base member 32 has a central generally cylindrical cavity 33 and a pair of narrow channels 35 that communicate with the cavity 33 and extend into the boss 34 at opposite sides of the cavity, as is shown in FIGS. 1 and 5.
  • the end face of the boss 34 is provided with a rectangular slot 36 (see FIGS. l-3) which extends completely across the length of the boss and is accessible to the channels 35 through openings 37 in the boss located at the bottom of the slot.
  • Exposed depressible contacts for the lamp 16 are provided by anchoring a pair of elongated metal contactors 44 (FIG. 1) of suitable resilient sheet metal, such as hardened brass, in the respective channels 35.
  • the contactor members 44 each have an arcuate arm segment 49 that is terminated by a rounded end segment 50 and projects upwardly and laterally beyond the flange 42 through a pair of diametrically opposite slots 39 in the collar 38 and a pair of aligned recesses 43 provided in the face of the flange.
  • the opposite ends 48 of the contactors 44 extend through the openings 37 into the slot 36 at the end of the boss 34 along with the outer ends of the lead-in conductors 26 where they are electrically joined together, either by spot welding or soldering.
  • the joined ends of the leads and contactors are, however, completely recessed within the slot 36, as will be noted in FIGS. 1-3, and cannot be accidentally touched when the assembly 15 is gripped by the boss 34 and being mounted on the circuit board.
  • the contactors 44, rectangular boss 34, the slot 36 in tne end of the boss, the reccesses 43 in the flange 42, and the slots 39 in the collar 38 are all disposed in a common diametrical plane that bisects the circular flange portion 42 of the base 32.
  • only globule 29 and adjacent indented segment 28 of the butt seal 17 are embedded in the boss and the plastic extends over and around the circumferential shoulder 30 into the annular recess 31.
  • the lamp l6 and base member 32 are securely and permanently fastened together by a mechanical interlocking type of juncture with the thickest and strongest part of the butt seal.
  • each of the contactors 44 consist of an enlarged rectangular body portion 45 from which a triangular shaped tongue 46 is struck.
  • the tongue is bent in the same direction as the arcuate arm portion 49, and the latter is terminated by the rounded end segment 50.
  • the opposite end of the contactor 44 is terminated by a shorter and smaller rectangular segment 48 which is slightly smaller than the slit opening 37 provided in the end wall of the boss 34.
  • the slit openings 37 are not as wide as the channels 35 and the channels extend upwardly into the cylindrical collar 38 to serve as guides during the insertion of the contactor members 44.
  • the central portion of the boss 34 is also provided with tapered arcuate passageways or grooves 41 that merge with the channels 35 and slits 37 to function as guides for the lead-in wires during the assembly operation.
  • a centrally disposed circular recess 47 is preferably provided in the inner face of the boss 34 at the bottom of the base cavity 33 to reduce the amount of plastic which must be heated and displaced during the embedment of the tip of the butt seal 17, which will now be described.
  • vibrations of a frequency and amplitude sufficient to heat and soften the plastic are introduced into the central inwardly-disposed surface portion of the boss 34 around and beneath the recess 47 and the end of the butt seal 17 is forced into the softened plastic until the plastic flows over and behind the circumferential shoulder 30 and into the circumferential recess 31 and encapsulates the end of the seal as shown in FIG. 1.
  • the application of vibratory energy is then stopped and the lamp l6 and base member 32 are held stationary until the softened plastic cools and rigidifies.
  • the vibratory energy may be introduced into the aforesaid selected portion of the boss 34 by placing the end of the butt seal 17 in abutting relation with that part of the base 32 and vibrating the lamp 16 in a direction parallel to a static force that is simultaneously applied to the envelope 18.
  • This can be accomplished with an apparatus of the type illustrated and described in US. Pat. No. 3,184,353 issued May 18, 1965 to L. Balamuth et al.
  • the vibratory energy is preferably introduced into the selected part of the boss 34 by placing the base 32 in a holder that is mounted on a suitably designed transducer which introduces the vibrations into the base and focuses them at the selected portion of the boss 34 in the region of the recess 47 to heat and soften only that portion of the base.
  • the lamp 16 is placed in abutting relationship with the boss 34 and a static force of about 10 pounds is applied to the lamp, while the base 32 remains in a fixed position, until the desired degree of penetration of the butt seal 17 into the softened plastic is achieved.
  • the vibrations should have a frequency of at least 1,000 cycles per second and a frequency of about 20,000 c.p.s. has given excellent results.
  • polypropylene is preferred, any thermoplastic or other type of plastic having suitable flexibility and resilient characteristics, durability and chemical stability can be used.
  • polypropylene it has been .found, that stabilizers had to be added to the resin to prevent it from chemically reacting with the brass contactors and eventually eroding them to the point when they disintegrated.
  • An additional advantage afforded by employing preformed plastic base members and integrally joining them to sealed-in electric lamps in accordance with the present invention is that the base and lamps can be readily color-coded for a quick visual check as to the lamp type and proper matching of the lamp and base components. This can be achieved by adding a suitable coloring additive of the glass from which the bead 24 is fabricated and an additive of the same color to the plastic from which the base 32 is fabricated so that they each have the same color.
  • a suitable coloring additive of the glass from which the bead 24 is fabricated and an additive of the same color to the plastic from which the base 32 is fabricated so that they each have the same color.
  • an T3% indicator lamp assembly designed for operation on 0.19 amps may have a black bead and a black base
  • a lamp assembly of identical size but designed for operation on 0.27 amps may have a blue bead and a blue base.
  • FIG. 8 there is shown a modified lamp-base assembly a that is similar to the unit previously described except that the boss portion 34a of the base 32a does not have a slot in its end face.
  • the joined ends of the lead-in conductors 26a and end segments 48a of the elongated metal contactors 44a thus initially project beyond the end of the boss.
  • protection against shock hazard is achieved by fastening a plastic end cap 56 to the boss 34a after the lamp 16a has been joined to the base 32a and the spot welding operations have been completed.
  • the end cap 56 has two rectangular recesses 57 and 58 in its inner face which are aligned with the channels a in the boss 34a and which are of sufficient depth to accommodate and protectively enclose the protruding ends of the contactors and lead wires when the cap is fastened to the end of the boss (as shown in FIG. 8).
  • the cap 56 is also provided with a central circular cavity 59 to accommodate any outward bulging of the end wall of the boss 34a which may occur should the globular tip 290 be larger than usual or the butt seal 17a inadvertently inserted too far into the boss 34a.
  • the end cap 56 is preferably formed from the same type of plastic as the base member 32a and, as shown in FIGS. 9 and 10, has a plurality of upstanding prongs 60 on its inner face. These prongs are softened by vibratory energy, after the overlying protruding ends of the contactors 44a and lead-in conductors 2611 have been spot welded by a pair of welding jaws 61 and 62 as shown in FIG. 10, and the base and cap pressed together, thus fusing the cap to the end of the boss and securely fastening it in place.
  • the lead-in wires 26a of the sealed-in lamp 16a prior to assembly are spaced to lie in substantially the same planes as the channels 35a and inwardly of the contactor members 44a so that they will enter the tapered grooves 410 when the contactors are inserted into the channels 35a and the lamp is inserted axially into the base cavity 33a.
  • the various components are designed to interfit with one another when properly aligned and can be assembled automatically by a suitable machine.
  • FIG. 12 there is shown another embodiment 15b therein the globular tip portion 29b and indented portion 28b of a butt-seal envelope 18b are embedded in and interlocked with a filling of rigidified basing cement 64 that is located at the bottom and only partly fills the base cavity 33b.
  • the boss 34b is closed by an end wall 63 and the channels 35b terminate within the boss.
  • the contactor members 44b are seated against the end wall 63 and are locked in pressured electrical engagement with the ends of the lead-in wires 26b by the tongues 46b that are compressed by the walls of the boss 34b which define the channels 35b.
  • the cement 64 is, of course, of a type that will form a strong bond with the plastic base member 32b and securely anchor the lamp 18b in place.
  • a hardenable plastic resin such as epoxy is suitable.
  • FIG. 13 there is shown still another embodiment 150 that is similar to Embodiment [II but employs modified contactor members 44c.
  • the portions 51 of the contactors 440 that are located within the plastic base member 320 are bent into U-shaped clamps that are compressively locked in sandwiched electrical engagement with the ends of the lead-in wires 260 by the walls of the boss 340 which define the channels 35c.
  • the channels are so dimensioned that the U- shaped clamp portions 51, when the ends of the lead wires 260 are disposed in the clamps, will make a force fit with the boss 34c and be securely anchored in place when the contactors 440 are fully inserted into the channels 350.
  • the globule 29c and adjoining indented portion 28c of the butt seal 17c are embedded in a body of cement 646 that is located at the bottom of and only partly fills the base cavity 330.
  • the embodiment 15d shown in FIG. 14 is also similar to Embodiment III in that a partial filling of cement 64d is used to fasten the globular tip 29d and indented portion 28d of the butt seal 17d to the plastic base 32d.
  • electrical connection with the ends of the lead wires 26d is achieved by means of rivet-like metal contactors 44d which have shank portions 65 that are force fitted, along with the lead wire ends, into suitably dimensioned cylindrical channels 35d that extend a short distance into the boss 34d from the lateral face of the flange 42d.
  • the boss 34d extends across the full diameter of the flange 42d to accommodate the rivet-like contactors 44d and the recesses 43d extend from the respective channels 35a to the base cavity 33d to provide passageways for the ends of the lead wires 26d.
  • the heads 66 of the contactors 44d are seated against and protrude a predetermined distance above the face of the flange 42d and thus serve as the contacts for the lamp 16d when the assembly 15d is mounted on the circuit board.
  • the invention is not limited to lamps of the buttsealed type but includes within its scope assemblies employing wedge-base lamps.
  • Such an assembly 15a is shown in FIG. 15 and consists of a wedge-base lamp l6e having an envelope l8e that is terminated by a press seal l7e which is partly embedded in and permanently interlocked with the boss portion 34e of the plastic base member 32c.
  • the base member 32e is basically the same as the slotted-boss type base of Embodiment I except that the cavity 33e is not quite as deep. This permits the press seal l7e to be inserted into the boss 34e a distance such that the plastic not only encapsulates the globule 29a and indented portion 2812 located at the tip of the seal but extends into the transverse grooves 68 formed in the pressed faces of the seal. The plastic and boss 34e are thus' interlocked with the annular shoulder 30e of the globule 29c and also with the transverse shoulders 69 defined by the grooves 68.
  • the central portion 70 of the press seal l7e is thicker than and protrudes beyond the flat faces of the seal. Since it constitutes the tipped-off segment of the exhaust tube, this enlarged central portion is generally cylindrical and extends axially along the center of the seal He.
  • the tapered segment 312 and globule 29c depend from this rib-like enlargement 70.
  • the press seal l7e is, of course, solid glass throughout and is very strong.
  • lead-in wires 26e extend axially from the end face of the press seal 172 rather than laterally through the envelope wall as in the case of a butt seal, suitable passageways (not shown) are provided in the boss 34e to permit the leads to extend laterally into the channels (not shown) and thence into the slot 36e along with the ends 48e of the contactors, to which they are spot welded.
  • an elongated recess (instead of a circular recess 47 as in Embodiment I) may also be provided in the inner surface of the boss 34a to minimize the amount of plastic which has to be heated, softened and displaced during the embedment of the end of the seal.
  • the lamp need not be of the incandescent type but can be a miniature glow lamp or contain other forms of energizable light sources.
  • the plastic base can comprise one which has the shape of a screw or bayonet type base and has suitable contacts anchored in its side or end walls, etc.
  • An electric lamp comprising, in combination;
  • vitreous envelope that contains an energizable source of light and has a sealed portion at one end that is terminated by a tip of solid fused vitreous material which has a laterally protruding shoulder that defines a transversely extending recess in the sealed end portion of said envelope,
  • a plastic base member having (a) a cavity that is larger than the sealed end portion of said envelope and (b) a pair of channels that are spaced from and communicate with said cavity, said envelope and base member being disposed in operative relationship with one another with the sealed end portion of the envelope extending into the base cavity, pair of lead-in conductors extending through the sealed end portion of said envelope and into the respective channels in said base member, and
  • said energizable light source comprises an incandescible filament that is connected to said lead-in conductors, the sealed end portion of said envelope comprises a butt seal that is terminated by an indented segment and a depending globular tip of solid fused vitreous material, and
  • the interior part of said base member encapsulates only the globular tip and the adjacent indented segment of the butt seal.
  • said energizable light source comprises an incandescible filament that is connected to said lead-in conductors
  • the sealed end portion of said envelope comprises a press seal of solid vitreous material that is terminated by an indented segment and a depending globular tip, and
  • the interior part of said base member encapsulates only the indented segment and globular tip of said press seal.
  • said press seal has a transverse groove in one of its pressed faces
  • the interior part of said base member also encapsulates the portion of the press seal which defines said transverse groove, the remainder of said press seal being surrounded by but not embedded in said base member.
  • said energizable light source comprises an incandescible filament that is connected to said lead-in conductors
  • said envelope is composed of glass and the sealed end portion thereof comprises a butt seal that is terminated by an indented segment and a depending globular tip of solid fused glass,
  • said base member is composed entirely of plastic and only said globular tip and an adjoining part of the indented segment of said butt seal are embedded in the bottom of said base member,
  • said base member (a) is terminated at its outermost end by an axially-extending boss and at its opposite end by a collar that extends around the portion of said envelope adjacent the butt seal, and (b) has a laterally extending flange that is located at the juncture of said boss and collar, and said pair of channels extended into said boss.
  • said collar is of generally cylindrical configuration and has a pair of integral resilient lugs in its outer surface that are diametrically opposite one another and adapted to engage and interlock in cam-like fashion with a keyed aperture in a printed circuit board or the like
  • said contactor means comprises a pair of elongated metal members that are (a) anchored in the respective channels, (b) extend beyond the laterally extending face of said flange, and (c) serve as exposed contacts that are adapted to engage and connect with the conductor elements of said circuit board or similar component when the lamp is placed in interlocked relationship therewith.
  • said channels extend from the laterally disposed face of said flange into the side walls of said boss, and said contactor members comprise rivet-like elements the shank portions whereof are anchored in the respective channels in electrical engagement with the ends of the lead-in conductors and the enlarged head portions whereof are seated against and protrude beyond the laterally extending face of said flange.
  • said contactor members comprise rivet-like elements the shank portions whereof are anchored in the respective channels in electrical engagement with the ends of the lead-in conductors and the enlarged head portions whereof are seated against and protrude beyond the laterally extending face of said flange.
  • said channels are aligned and merge with slot openings in said collar and recesses in said flange
  • said contactor members comprise elongated sheet metal elements that are locked in the respective channels and have resilient arm portions that extend through and laterally beyond the slot openings in said collar and are aligned with but spaced from the recessed portions of said flange.
  • each of said sheet metal contactor elements have a U-shaped portion that is located within the respective channels in sandwiched relationship with the end of the associated lead-in conductor and is compressively clamped in such position by the walls of the base member which define said channel.
  • the boss portion of said base member comprises a flat knob-like extension that is disposed in a common diametric plane along with said contactor elements, channels, slot openings in said collar, and recesses in said flange,
  • each of said sheet metal contactor elements are seated against the ends of the respective channels and locked in pressured electrical contact with the associated end portions of the lead-in conductors by a resilient tongue that protrudes from the contactor element and engages the adjacent wall of said extension.
  • the end face of said knob-like extension has a pair of apertures therein that are of smaller dimension than and communicate with said channels.
  • each of said contactor elements has (a) an enlarged rectangular body portion that is seated against the bottom of the respective channels and has a deformed portion that defines said protruding locking tongue and (b) an end segment of smaller dimension than said body portion that extends through the associated aperture and beyond the end of said extension,
  • the end portions of the lead-in conductors also extend through said apertures and are electrically joined to the protruding end segments of said contactors,
  • a plastic cap is joined to and covers the end of said extension
  • said cap has a pair of spaced recesses in its inwardly disposed surface that are aligned with and protectively enclose the protruding joined ends of said lead-in conductors and contactor elements.
  • the end face of said knob-like extension has a pair of apertures therein that are of smaller dimension than and communicate with said channels,
  • said extension has a slot that extends across the end face thereof along said diametrical plane
  • a rear loading panel lamp comprising:
  • a lamp including an envelope and first and second leads extending from said envelope;
  • a base member including:
  • said locking means include means for engaging said circuit board to restrain said lamp assembly in predetermined position in which said first and second electrical terminal means are in contact with first and second conductors on said circuit board.
  • a base for a rear-loading panel lamp comprising: locking means operative to secure said base to a cira wall defining a chamber for receiving a portion of Quit board a lamp envelope;
  • a plurality of retaining means external to said membar, each being Operative to Secure an electrical 5 includes a lower external portion which lS laterally terminal which is slidingly engageable with said reelongated taining means;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connecting Device With Holders (AREA)
US728471A 1968-05-13 1968-05-13 Electric lamp with integral plastic base member Expired - Lifetime US3859554A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US728471A US3859554A (en) 1968-05-13 1968-05-13 Electric lamp with integral plastic base member
GB22219/69A GB1209282A (en) 1968-05-13 1969-05-01 Electric lamp with integral plastic base member, and method of assembly
DE19691923665 DE1923665A1 (de) 1968-05-13 1969-05-09 Elektrische Lampe mit integralem Kunststoff-Sockelelement sowie Verfahren zur Herstellung einer solchen Lampe
NL6907325A NL6907325A (enrdf_load_stackoverflow) 1968-05-13 1969-05-13
FR6915522A FR2008429A1 (enrdf_load_stackoverflow) 1968-05-13 1969-05-13
JP44036904A JPS4926669B1 (enrdf_load_stackoverflow) 1968-05-13 1969-05-13

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US728471A US3859554A (en) 1968-05-13 1968-05-13 Electric lamp with integral plastic base member

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US3859554A true US3859554A (en) 1975-01-07

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US728471A Expired - Lifetime US3859554A (en) 1968-05-13 1968-05-13 Electric lamp with integral plastic base member

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US (1) US3859554A (enrdf_load_stackoverflow)
JP (1) JPS4926669B1 (enrdf_load_stackoverflow)
DE (1) DE1923665A1 (enrdf_load_stackoverflow)
FR (1) FR2008429A1 (enrdf_load_stackoverflow)
GB (1) GB1209282A (enrdf_load_stackoverflow)
NL (1) NL6907325A (enrdf_load_stackoverflow)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979627A (en) * 1975-04-28 1976-09-07 Gte Sylvania Incorporated Electric lamp with insulating base
US4126810A (en) * 1976-06-01 1978-11-21 General Electric Company Ceramic base for glass halogen lamps
US4499404A (en) * 1982-08-05 1985-02-12 General Electric Company Incandescent lamp with ceramic base
US4595859A (en) * 1983-04-15 1986-06-17 Patent-Treuhand-Gesellschaft Halogen incandescent lamp and socket combination, particularly for direct assembly into a fixture with bayonet lock
US4837479A (en) * 1984-02-16 1989-06-06 GTE Products Company Electric lamp with insulating base
US4943898A (en) * 1987-11-20 1990-07-24 U.S. Philips Corporation Electric lamp having a lamp cap of synthetic material
US5061189A (en) * 1989-10-31 1991-10-29 Harison Electric Co., Ltd. Lamp socket for use with a printed circuit board
USD321404S (en) 1990-03-29 1991-11-05 Falburg Films Corporation Light bulb
US5078625A (en) * 1989-06-20 1992-01-07 Stanley Electric Co., Ltd. Wedge base socket attached to spg substrate
US5142609A (en) * 1988-12-18 1992-08-25 Tqs Thermal Quarz-Schmelze Gmbh Plug-in quartz infra-red radiator
US5209668A (en) * 1990-07-06 1993-05-11 Moriyama Sangyo Kabushiki Kaisha Socket with a lamp without a metallic base
US5261837A (en) * 1991-10-23 1993-11-16 Mcdonnell Douglas Corporation High density bi-pin receptacle
US5460539A (en) * 1993-07-12 1995-10-24 Gallone; Cesare Connecting device for electric components
US5492477A (en) * 1993-02-03 1996-02-20 Moon; Sam H. Miniature lamp holder
DE19628755A1 (de) * 1996-07-17 1998-01-22 Abb Patent Gmbh Beleuchtungseinsatz
US5800183A (en) * 1996-02-22 1998-09-01 Tricon Industries Incorporated Sealed socket assembly for a plug-in lamp and a method for assembling same
US5890912A (en) * 1996-09-11 1999-04-06 Cooper Automotive Products, Inc. Contact terminal with linear contact region
US20020158560A1 (en) * 2001-01-30 2002-10-31 Linssen Petrus Johannes Antonius Electric lamp provided with a lamp cap
US6583542B2 (en) * 2001-02-28 2003-06-24 Harison Toshiba Lighting Corporation Device for mounting a light source
US20030209981A1 (en) * 2002-05-09 2003-11-13 Gibboney James W. Safety lamp
US20060152161A1 (en) * 2005-01-11 2006-07-13 Rodriguez Edward T Incandescent lamp with integral controlling means
US20060255707A1 (en) * 2005-05-10 2006-11-16 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Lamp base having color coding and lamp having a lamp base
US20070019423A1 (en) * 2001-07-06 2007-01-25 Koninklijke Philips Electronics, N.V. Lamps with variable lower base
US20080061671A1 (en) * 2006-09-11 2008-03-13 Wegman Joseph L Light source with sealant cover
US20080136308A1 (en) * 2006-10-19 2008-06-12 Ceferino Garcia Lamp with radial arm electrical contacts
US7666048B1 (en) 2008-08-01 2010-02-23 Tech Patent Licensing, Llc Method for securing a miniature bulb in a holder
US20100296005A1 (en) * 2008-02-19 2010-11-25 Sharp Kabushiki Kaisha Discharge tube, lighting device, display device, and television receiver
US20110198992A1 (en) * 2008-10-21 2011-08-18 Koninklijke Philips Electronics N.V. Socketed high pressure gas discharge lamp
US20150189697A1 (en) * 2013-12-31 2015-07-02 Applied Materials, Inc. Rtp lamp base improvement
US9929027B2 (en) 2013-11-22 2018-03-27 Applied Materials, Inc. Easy access lamphead
US10026630B2 (en) 2014-05-27 2018-07-17 Applied Materials, Inc. Retention and insulation features for lamp

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8120785U1 (de) * 1981-07-15 1982-12-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Anzeigeleuchte
DE3133161A1 (de) * 1981-08-21 1983-03-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Leuchte zur beleuchtung einer anzeigeeinrichtung
DE3201282A1 (de) * 1982-01-18 1983-07-28 Oskar Dilo Maschinenfabrik Kg, 6930 Eberbach "verfahren und einrichtung zum automatischen benadeln von nadelbrettern"
FR2525850A1 (fr) * 1982-04-21 1983-10-28 Vibrachoc Sa Voyant lumineux pour circuits imprimes
DE3743979C1 (de) * 1987-12-23 1989-06-15 Offermann Zeiler Schmid Bwf Verfahren und Vorrichtung zum automatischen Ent- und Benadeln von Nadelbrettern
JPH0652861U (ja) * 1991-09-10 1994-07-19 ジェイソン・インダストリーズ・カンパニー・リミテッド ゴルフバッグ
DE19928419C1 (de) 1999-06-23 2001-02-22 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Sockelung einer elektrischen Lampe, Verwendung des Verfahrens zur Sockelung einer Leuchtstofflampe und Leuchtstofflampe
ES2446521T3 (es) 2007-02-02 2014-03-10 Groz-Beckert Kg Procedimiento y dispositivo para el equipamiento de tablas de agujas para máquinas para fabricar fieltro
ES2374615T3 (es) 2009-03-27 2012-02-20 Groz-Beckert Kg Ayuda de inserción para el equipamiento de tablas de agujas.
JP2014013652A (ja) * 2012-07-03 2014-01-23 Yazaki Corp ソケット装置

Citations (6)

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US2892992A (en) * 1957-02-04 1959-06-30 Gen Electric Printed circuit lamp base
US3017599A (en) * 1960-01-05 1962-01-16 Gen Motors Corp Lamp socket
US3077022A (en) * 1962-05-03 1963-02-12 Burroughs Corp Lamp and method of manufacture
US3253249A (en) * 1961-05-03 1966-05-24 Republic Ind Corp Bulb socket for panel mounting
US3265923A (en) * 1963-03-19 1966-08-09 Westinghouse Electric Corp Baseless double-ended electric incandescent lamp
US3447016A (en) * 1966-11-02 1969-05-27 Wagner Electric Corp Rear loading panel lamps and a method of basing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892992A (en) * 1957-02-04 1959-06-30 Gen Electric Printed circuit lamp base
US3017599A (en) * 1960-01-05 1962-01-16 Gen Motors Corp Lamp socket
US3253249A (en) * 1961-05-03 1966-05-24 Republic Ind Corp Bulb socket for panel mounting
US3077022A (en) * 1962-05-03 1963-02-12 Burroughs Corp Lamp and method of manufacture
US3265923A (en) * 1963-03-19 1966-08-09 Westinghouse Electric Corp Baseless double-ended electric incandescent lamp
US3447016A (en) * 1966-11-02 1969-05-27 Wagner Electric Corp Rear loading panel lamps and a method of basing the same

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979627A (en) * 1975-04-28 1976-09-07 Gte Sylvania Incorporated Electric lamp with insulating base
US4126810A (en) * 1976-06-01 1978-11-21 General Electric Company Ceramic base for glass halogen lamps
US4499404A (en) * 1982-08-05 1985-02-12 General Electric Company Incandescent lamp with ceramic base
US4595859A (en) * 1983-04-15 1986-06-17 Patent-Treuhand-Gesellschaft Halogen incandescent lamp and socket combination, particularly for direct assembly into a fixture with bayonet lock
US4837479A (en) * 1984-02-16 1989-06-06 GTE Products Company Electric lamp with insulating base
US4943898A (en) * 1987-11-20 1990-07-24 U.S. Philips Corporation Electric lamp having a lamp cap of synthetic material
US5142609A (en) * 1988-12-18 1992-08-25 Tqs Thermal Quarz-Schmelze Gmbh Plug-in quartz infra-red radiator
US5078625A (en) * 1989-06-20 1992-01-07 Stanley Electric Co., Ltd. Wedge base socket attached to spg substrate
US5061189A (en) * 1989-10-31 1991-10-29 Harison Electric Co., Ltd. Lamp socket for use with a printed circuit board
USD321404S (en) 1990-03-29 1991-11-05 Falburg Films Corporation Light bulb
US5209668A (en) * 1990-07-06 1993-05-11 Moriyama Sangyo Kabushiki Kaisha Socket with a lamp without a metallic base
US5261837A (en) * 1991-10-23 1993-11-16 Mcdonnell Douglas Corporation High density bi-pin receptacle
US5492477A (en) * 1993-02-03 1996-02-20 Moon; Sam H. Miniature lamp holder
US5460539A (en) * 1993-07-12 1995-10-24 Gallone; Cesare Connecting device for electric components
US5800183A (en) * 1996-02-22 1998-09-01 Tricon Industries Incorporated Sealed socket assembly for a plug-in lamp and a method for assembling same
US6039579A (en) * 1996-02-22 2000-03-21 Tricon Industries, Incorporated Sealed socket assembly for a plug-in lamp and a method for assembling same
DE19628755A1 (de) * 1996-07-17 1998-01-22 Abb Patent Gmbh Beleuchtungseinsatz
US5890912A (en) * 1996-09-11 1999-04-06 Cooper Automotive Products, Inc. Contact terminal with linear contact region
US20020158560A1 (en) * 2001-01-30 2002-10-31 Linssen Petrus Johannes Antonius Electric lamp provided with a lamp cap
US6791244B2 (en) * 2001-01-30 2004-09-14 Koninklijke Philips Electronics N.V. Electric lamp provided with a lamp cap
US6583542B2 (en) * 2001-02-28 2003-06-24 Harison Toshiba Lighting Corporation Device for mounting a light source
US20070019423A1 (en) * 2001-07-06 2007-01-25 Koninklijke Philips Electronics, N.V. Lamps with variable lower base
US7354186B2 (en) * 2001-07-06 2008-04-08 Koninklijke Philips Electronics, N.V. Lamps with variable lower base
US20030209981A1 (en) * 2002-05-09 2003-11-13 Gibboney James W. Safety lamp
US20060152161A1 (en) * 2005-01-11 2006-07-13 Rodriguez Edward T Incandescent lamp with integral controlling means
US7245083B2 (en) * 2005-01-11 2007-07-17 Longlite, Llc Incandescent lamp with integral controlling means
US20060255707A1 (en) * 2005-05-10 2006-11-16 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Lamp base having color coding and lamp having a lamp base
US20080061671A1 (en) * 2006-09-11 2008-03-13 Wegman Joseph L Light source with sealant cover
US7417364B2 (en) * 2006-09-11 2008-08-26 Osram Sylvania, Inc. Light source with sealant cover
WO2008033210A3 (en) * 2006-09-11 2008-11-13 Osram Sylvania Inc Light source with sealant cover
CN101512711B (zh) * 2006-09-11 2011-03-23 奥斯兰姆施尔凡尼亚公司 具有密封剂覆盖物的光源
US20080136308A1 (en) * 2006-10-19 2008-06-12 Ceferino Garcia Lamp with radial arm electrical contacts
US7834531B2 (en) * 2006-10-19 2010-11-16 Osram Sylvania Inc. Lamp with radial arm electrical contacts
US20100296005A1 (en) * 2008-02-19 2010-11-25 Sharp Kabushiki Kaisha Discharge tube, lighting device, display device, and television receiver
US7666048B1 (en) 2008-08-01 2010-02-23 Tech Patent Licensing, Llc Method for securing a miniature bulb in a holder
US20110198992A1 (en) * 2008-10-21 2011-08-18 Koninklijke Philips Electronics N.V. Socketed high pressure gas discharge lamp
US9111710B2 (en) * 2008-10-21 2015-08-18 Koninklijke Philips N.V. Socketed high pressure gas discharge lamp
US9929027B2 (en) 2013-11-22 2018-03-27 Applied Materials, Inc. Easy access lamphead
US20150189697A1 (en) * 2013-12-31 2015-07-02 Applied Materials, Inc. Rtp lamp base improvement
CN105934815A (zh) * 2013-12-31 2016-09-07 应用材料公司 Rtp灯基座改良
US9462636B2 (en) * 2013-12-31 2016-10-04 Applied Materials, Inc. RTP lamp base with removal features
KR101779733B1 (ko) 2013-12-31 2017-09-18 어플라이드 머티어리얼스, 인코포레이티드 Ｒｔｐ 램프 베이스를 개선한 램프 디바이스
CN105934815B (zh) * 2013-12-31 2019-07-26 应用材料公司 Rtp灯基座改良
US10026630B2 (en) 2014-05-27 2018-07-17 Applied Materials, Inc. Retention and insulation features for lamp

Also Published As

Publication number Publication date
JPS4926669B1 (enrdf_load_stackoverflow) 1974-07-11
NL6907325A (enrdf_load_stackoverflow) 1969-11-17
FR2008429A1 (enrdf_load_stackoverflow) 1970-01-23
GB1209282A (en) 1970-10-21
DE1923665A1 (de) 1969-11-20

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Effective date: 19830316