Patents by Inventor Elmer G. Fridrich
Elmer G. Fridrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7811148Abstract: Manufacturing equipment and manufacturing process steps that improve upon prior art processes for the manufacturing of filament tube and arc tube light sources, their components and subassemblies, and lamps employing said light sources. A double ended, tipless filament tube or arc tube light source incorporates a drawn-down tubular body, and one piece foliated leads with spurs for process handling and for spudding into a filament with stretched-out legs. Bulged ends on the body provide a novel cutoff means, facilitate a flush-fill finishing process, and enhance mounting and support of the light sources in lamps. The foliated leads are made from a continuous length of wire in a process including foil hammering and two-bath AC electrochemical etching. Cost-reduced light source and lamp production enables affordable household consumer lamps, even when containing two series-connected halogen filament tubes.Type: GrantFiled: December 5, 2007Date of Patent: October 12, 2010Assignee: Halogen Technologies, Inc.Inventor: Elmer G. Fridrich
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Patent number: 7322870Abstract: Manufacturing equipment and manufacturing process steps that improve upon prior art processes for the manufacturing of filament tube and arc tube light sources, their components and subassemblies, and lamps employing said light sources. A double ended, tipless filament tube or arc tube light source incorporates a drawn-down tubular body, and one piece foliated leads with spurs for process handling and for spudding into a filament with stretched-out legs. Bugled ends on the body provide a novel cutoff means, facilitate a flush-fill finishing process, and enhance mounting and support of the light sources in lamps. The foliated leads are made from a continuous length of wire in a process including foil hammering and two-bath AC electrochemical etching. Cost-reduced light source and lamp production enables affordable household consumer lamps, even when containing two series-connected halogen filament tubes.Type: GrantFiled: November 5, 2003Date of Patent: January 29, 2008Inventor: Elmer G. Fridrich
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Patent number: 7107676Abstract: Manufacturing equipment and manufacturing process steps that improve upon prior art processes for the manufacturing of filament tube and arc tube light sources, their components and subassemblies, and lamps employing said light sources. A double ended, tipless filament tube or arc tube light source incorporates a drawn-down tubular body, and one piece foliated leads with spurs for process handling and for spudding into a filament with stretched-out legs. Bugled ends on the body provide a novel cutoff means, facilitate a flush-fill finishing process, and enhance mounting and support of the light sources in lamps. The foliated leads are made from a continuous length of wire in a process including foil hammering and two-bath AC electrochemical etching. Cost-reduced light source and lamp production enables affordable household consumer lamps, even when containing two series-connected halogen filament tubes.Type: GrantFiled: November 5, 2003Date of Patent: September 19, 2006Inventor: Elmer G. Fridrich
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Publication number: 20030233847Abstract: An elongated fused quartz member is disclosed having alkali metal impurities being removed therefrom when initially formed. The impurities are removed by an electrolytic procedure accompanying formation of the elongated fused quartz member. Apparatus for carrying out the electrolytic removal procedure is also disclosed.Type: ApplicationFiled: May 30, 2003Publication date: December 25, 2003Inventor: Elmer G. Fridrich
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Patent number: 4547704Abstract: An improved high efficiency general service incandescent lighting unit is disclosed. The lamp has coaxial outer and inner envelopes. The inner envelope has a low voltage filament coaxially disposed therein, a halogen gas atmosphere and a fill-gas at a high pressure. The outer envelope has a coating of a light transmissive reflective infrared film on its inner surface. Further disclosed are various control systems for reducing a typical 120 v. A.C. voltage and applying the reduced A.C. or D.C. voltage across the low voltage filament within the inner envelope.Type: GrantFiled: August 1, 1983Date of Patent: October 15, 1985Assignee: General Electric CompanyInventors: Walter K. Brinn, Ivan Berlec, John M. Davenport, Milan R. Vukcevich, Elmer G. Fridrich
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Patent number: 4389201Abstract: A metal halide discharge lamp is manufactured on a horizontal glass blowing lathe which is indexed by a turntable through angularly spaced work stations. Initially, a length of quartz tubing is formed into a lamp body having an enlarged bulbous midportion defining an arc chamber with tubular necks projecting in opposite directions. Thereafter, a cathode is inserted into one neck, metal halide pellets and a globule of mercury are inserted into the arc chamber, an anode is inserted into the other neck, and hermetic seals are made between the necks and the electrodes. All of the insertions are carried out by moving the various components through the tailstock of the lathe and into the lamp body through one of the necks, the cathode being moved tip-last through the one neck, across the arc chamber and into the other neck.Type: GrantFiled: February 5, 1981Date of Patent: June 21, 1983Assignee: General Electric CompanyInventors: Richard L. Hansler, Elmer G. Fridrich
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Patent number: 4275329Abstract: An electrode for a miniature high pressure metal vapor lamp comprises a slender tungsten shank joined to a molybdenum inlead by a weld knot. The shank diameter is chosen above the size where melt-back starts at the intended lamp current and is provided wth a fine wire overwind fitting loosely thereon and retained in place by frictional engagement with the weld knot. The overwind reduces breakdown voltage and assures rapid glow-to-arc transition.Type: GrantFiled: December 29, 1978Date of Patent: June 23, 1981Assignee: General Electric CompanyInventors: Elmer G. Fridrich, John M. Davenport
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Patent number: 4248584Abstract: Highly purified metal halide salts are made into a frangible stick having uniformly spaced lines of weakness which permit the stick to be broken readily into cylindrical pellets of uniform size. The pellets are particularly useful to supply the vaporizable fill in high intensity metal halide discharge lamps. The stick is formed by intermittently loading salt powder into the sized entrance to a channel through which the salt is forced, and compressing the charge against the back end of previously formed salt stick by means of a polished plunger.Type: GrantFiled: February 12, 1979Date of Patent: February 3, 1981Assignee: General Electric CompanyInventor: Elmer G. Fridrich
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Patent number: 4207541Abstract: A cooling jacket for parallel triggered flash lamps, particularly useful in optically pumped lasers, is disclosed having an optically clear cylindrical outer envelope within which a glass-insulated trigger wire assembly is integrally formed. The high potentials required for reliable triggering of the flash lamp is substantially reduced by virtue of placing the trigger wire in close proximity to the cooled lamp, and the insulated trigger wire technique significantly increases the useful life of the associated components. The apparatus described is suitable for use with a range of coolant fluids and can accommodate a variety of flash lamps.Type: GrantFiled: February 21, 1978Date of Patent: June 10, 1980Assignee: General Electric CompanyInventors: Arieh M. Karger, Elmer G. Fridrich
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Patent number: 4170619Abstract: Highly purified metal halide salts are made into a frangible stick having uniformly spaced lines of weakness which permit the stick to be broken readily into cylindrical pellets of uniform size. The pellets are particularly useful to supply the vaporizable fill in high intensity metal halide discharge lamps. The stick is formed by intermittently loading salt powder into the sized entrance to a channel through which the salt is forced, and compressing the charge against the back end of previously formed salt stick by means of a polished plunger.Type: GrantFiled: September 19, 1977Date of Patent: October 9, 1979Assignee: General Electric CompanyInventor: Elmer G. Fridrich
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Patent number: 4053809Abstract: A short-arc discharge lamp having a pair of electrodes sealed into a bulb, and an external starting device comprising an electrical conductor connected to one of the electrodes and extending to the vicinity of the seal of the other electrode.Type: GrantFiled: June 18, 1976Date of Patent: October 11, 1977Assignee: General Electric CompanyInventors: Elmer G. Fridrich, Rolf S. Bergman
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Patent number: 3996493Abstract: An integral self-contained fluorescent lamp unit comprising an elongated lamp and an elongated ballast resistor carried in an outwardly extending housing member positioned alongside the lamp.Type: GrantFiled: July 28, 1975Date of Patent: December 7, 1976Assignee: General Electric CompanyInventors: John M. Davenport, Elmer G. Fridrich
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Patent number: 3974418Abstract: An integral self-contained fluorescent lamp unit comprising an elongated lamp and an elongated ballast resistor adjacent to and alongside the lamp. Metal strip heat radiators are positioned adjacent to and alongside the ballast resistor for dissipating its heat when operating.Type: GrantFiled: July 28, 1975Date of Patent: August 10, 1976Assignee: General Electric CompanyInventor: Elmer G. Fridrich
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Patent number: D248501Type: GrantFiled: May 3, 1976Date of Patent: July 11, 1978Assignee: General Electric CompanyInventors: Elmer G. Fridrich, John M. Davenport