Matches 151 - 200 out of 384 < 1 2 3 4 5 6 7 8 >
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4221989 Electric lamp seal construction  
In electric lamps according to the invention the alkali-alumino-borosilicate glass of the pinch seal of the lamp envelope is directly fused to the molybdenum current supply wire of diameter D. A...
4216406 Electric lamp wherein the terminal socket cap contains a foamed cap cement which functions to prevent explosions and/or burning a hole through the cap  
An improved electric lamp of the type wherein a transparent bulb is sealed to a terminal socket cap and contains a foamed cap cement which substantially fills the interior of said terminal cap. The...
4208609 Squirm resistant filament  
Low wattage incandescent lamp filaments have improved squirm resistance when wound with low mandrel ratios and high pitch ratios. Squirm resistant is further enhanced when the filament is mounted...
4196368 Improving incandescent bulb efficiency  
Incandescent light bulb efficiency is improved by: (1) modifying the surface micro-structure of a lamp filament in such a way as to increase the emissivity in the visible region of the spectrum...
4189657 Method of making sealed beam lamp  
A tungsten-halogen lamp capsule is disposed within a curved reflector, the lead-in support wires for the capsule protruding through the rear portion of the reflector. After a front lens is sealed...
4184099 Composition for slow release of volatile ingredients at _high temperature; and article comprising same  
Bodies which are formed compositions of Versalon® type polyamide resin containing from about 35% up to about 70% by weight of highly volatile materials such as perfumes, odorants, insecticides,...
4181869 Tungsten halogen lamp in reflector envelope  
An electric lamp comprises a reflector envelope having a sealed tungsten-halogen lamp disposed therein. The lead-in conductor supports for the lamp extend through, and are connected to, metal...
4180757 Incandescent lamp with vibration-protected filament mount  
An incandescent lamp has a coiled filament with an improved life when it is mounted substantially in the same direction in which a mechanical shock occurs. In a particular embodiment of a miniature...
4175244 Lamp filament configuration for use in a drum lens  
The improvement in a filament system in a lamp for use in a drum lens of a navigational light in which a plurality of vertically positioned similar filaments are spaced about but away from a...
4174488 Electric lamp  
Halides of Mn, Ba, Ca, Sr, Ce and La are used as a binder for getters in electric lamps. They have the advantage over organic binders of producing no oxygen-containing decomposition products when...
4160929 Incandescent light source with transparent heat mirror  
An incandescent lamp having a transparent heat mirror placed on the lamp envelope which transmits a substantial portion of the energy in the visible range produced by the lamp filament and which...
4152622 Lamp-base assembly  
A baseless light bulb is locked into a one-piece molded base and the base provides mechanical and electrical connection of the light bulb to a circuit board.
4149103 Incandescent lamp having embedded support means  
In a press-sealed single-ended tubular incandescent lamp, the support means thereof is embedded in the press seal and protrudes from the edge thereof, substantially orthogonal to the axis of the lamp.
4146814 Pinch and base structure for single-ended lamps  
A pinch and base structure is described in which the shaped end of a single-ended miniature lamp is securely engaged by a two piece, clip type base.
4145332 Adhesives  
A lamp capping cement for electric lamps comprises a resin component consisting essentially of a condensation product of an aralkyl ether and a phenol mixed with a cross-linkable polymer or resin,...
4144473 Electric incandescent lamp with cylindrical filament  
An incandescent lamp has a hollow cylindrical filament which is constructed from transversal strips each traversing at least for the greater part the circumference of the cylinder at a distance...
4132922 Gas-filled incandescent lamp with integral fuse assembly  
Protection against potentially destructive arcs which may occur within a gas-filled incandescent lamp when the energized filament fails is achieved by partly embedding separate inner and outer...
4126810 Ceramic base for glass halogen lamps  
A ceramic base is added to a glass halogen lamp to improve the electrical performance and ease of use of the lamp.
4119832 Hermetically sealed electrical gas fuel igniter  
An electric heating element for igniting gas fuel comprises a hermetically sealed envelope made of at least 99% pure alumina and filled with a non-oxidizing gas such as hydrogen or one of the inert...
4114066 Subminiature incandescent lamp  
A subminiature incandescent lamp having a tubular bulb with a flattened ps portion effecting closure of the bulb having a pair of lead-in wires sealed therethrough. The lead-in wires extend...
4103201 Cementless base incandescent lamp  
An incandescent lamp is disclosed in which the lamp mount is replaced with a mount which is attached to a molded glass disc having pins extending therethrough. The disc is attached to the bulb by...
4101798 Electric lamp with a torpedo shaped conductor tip  
External cylindrical current conductors of an electric lamp are torpedo-shaped at the end which is welded to a metal foil in a pinch seal of the lamp vessel. The torpedo-shaped part has a length...
4088918 Incandescent lamp having embedded support wires  
The support means for a press-sealed single-ended tubular incandescent lamp comprises support wires which are embedded in the press seal and protrude from the edge thereof, substantially orthogonal...
4081708 Incandescent lamp-reflector unit  
An incandescent lamp-reflector unit having a metal reflector in which, for increasing the reflecting surface, the neck aperture of the reflector is maintained as small as possible, is not...
4079283 High wattage incandescent lamp with support for a planar segmented filament  
A multihundred watt incandescent projection lamp has a continuous coiled filament in a rectangular area in front of a reflector, the filament comprising folded segments two of which extend...
4069437 Infrared lamp with heat conductive cap assembly and fixture  
An infrared tubular incandescent lamp provided with a cap assembly and current supply lead at each pinched end of the lamp vessel. The caps are not electrically conductive and are heat sinks. Each...
4061940 Baseless cartridge lamp and socket therefor  
A dual filament lamp is installed in its cooperating socket without the use of intermediate base, cement or bulb stem. The elimination of the intermediate elements improves the ability to...
4052638 Flare-wedge lamp  
An improved wedge-based lamp and method of manufacture are disclosed in which conductive leads and an exhaust tube are positioned and held in the pinch end of a flared section of glass tubing....
4044277 Mechanically assembled base for electric lamps  
A mechanically assembled base is disclosed in which the insulator portion comprises an undercut for supporting the portion of the base shell holding the insulator in place.
4032809 Tantalum carbide or tantalum-alloy carbide filament mounting and method  
Coiled incandescible filament which principally comprises tantalum carbide has coiled end portions thereof overfitting relatively thick tantalum carbide members, with the inner surfaces of the...
4028577 Electric lamp with insulating base  
An electric lamp having a light-transmitting envelope, such as a glass bulb, secured to a plastic base having a symmetrical wedge-lock portion. Lead-in wires from the glass bulb are threaded...
4020382 Lamp having screw base  
A glass screw base of a bulb is provided with a first channel for accomodating solder filling used for mechanical locking of the glass base to a metal screw shell. A second, narrow channel is made...
4012658 Electric lamps mounted in a flanged cap  
An electric lamp assembly for use in sealed beam lighting units comprises a sealed envelope containing a light source mounted in an integnally flanged cap. Electrical supply leads pass through...
3997808 Mounting for single-ended lamp  
A miniature wire lamp is cemented into a ceramic holder such that the filament is precisely located with respect to the holder.
3997809 Decorative lamp having an integral base and envelope  
A lamp includes a sealed envelope with an integrally formed base so as to form a single unit. An illuminating filament is enclosed within the sealed envelope and leads connected to the filament...
3986067 Electric incandescent lamp with support structure for a planar filament  
An electric incandescent lamp and method of manufacturing same in which two filaments stretched in frames are arranged. The frames are coupled together by a brace having a central portion which is...
3986068 Miniature indicating lamp  
A miniature indicating lamp with a base made of synthetic material for insertion into a socket. The lamp is provided with an upper hollow-cylindrical glass portion, and a base which has a bottom...
3979627 Electric lamp with insulating base  
An electric lamp having a light-transmitting envelope, such as a glass bulb, secured to a plastic base having a symmetrical wedge-lock portion. Lead-in wires from the glass bulb are threaded...
3979622 Headlight and incandescent lamp for anti-dazzle beam  
The invention relates to a headlight as well as an incandescent lamp which is suitable for being arranged in a reflector by means of which an anti-dazzle beam is produced. For that purpose the...
3959684 Miniature lamp construction and method of manufacture  
An improved miniature size electric lamp is disclosed wherein an outer wire lead of the lamp is flattened and adhesively bonded to the inside rim of the base shell with an electrically-conducting...
3956660 Electric incandescent lamp  
A halogen incandescent lamp comprises a lamp envelope which is sealed by one or two pinch seals in which one or more foils and conductors welded thereto are sealed and in which pinch seals means...
3953757 Solder sealed light bulb  
The Solder Sealed Light Bulb utilizes a solder exhaust port seal and lead seal combination. Solder glass, or metal solder may be used for the seal material. Evacuation is accomplished in a vacuum...
3943395 Tubular incandescent lamp having spaced segments  
In a tubular, double ended electric incandescent lamp in which the filament comprises coiled segments spaced from each other, the filament coiled segments are electrically connected by means of...
3942063 Incandescent lamp having increased life  
The invention relates to a normal incandescent lamp having a coiled filament throughout its length, whose secondary winding in a turn near the ends of the filament secured to the current supply...
3930178 Electrical incandescent filament devices  
An electrical device with an elongated tubular envelope has an incandescent filament supported along the axis of the envelope by ceramic plates mechanically bonded to the filament and fitting...
3914640 Incandescent lamps having preformed filament units  
Axial-geometry incandescent lamps with accurately aligned, self-centering helical filaments are disclosed, the filaments having heavy end sections which are mechanically deformed to grip a helical...
3906275 Electric lamp with electrolysis preventing apparatus  
An electric lamp having a lamp envelope transmitting radiation which is sealed in a vacuum-tight manner at least one end by means of a pinch in which at least two current lead-through conductors...
3904908 Manufacture of electrical devices having sealed envelopes  
An electrical device, e.g. an electric lightbulb has various electrical and/or optical parts contained inside an envelope, and is made by attaching the various parts to selected fingers of a metal...
3899708 Noise free incandescent lamp  
A gas-filled incandescent lamp in a solid-state dimming circuit has lead-in wires made of nonmagnetic metal in order to reduce magnetically-induced noise resulting from the modified voltage output...
3885185 Incandescent lamp  
An incandescent lamp having a bulb and a male base at the trailing end thereof for placement in a conventional threaded electrical socket, the male base comprising a ring conductor secured to the...
Matches 151 - 200 out of 384 < 1 2 3 4 5 6 7 8 >