Patents Represented by Attorney Frank L. Neuhauser
  • Patent number: 4178059
    Abstract: A screw base for high intensity discharge lamps or for larger sizes of incandescent lamps utilizes a threaded aluminum shell coated with a thin film of polytetrafluoroethylene. The thin film is penetrated at points of maximum contact pressure with the socket to provide electrical continuity while effecting a low friction surface preventing galling and sticking of the base in the socket and permitting easy lamp insertion and removal.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventors: Stanley F. Bubar, David L. Jennings
  • Patent number: 4170744
    Abstract: A combination lamp comprises a miniature arc tube, a standby filament and a thermal switch in a sealed vitreous envelope. The switch is connected in series with the filament, and the arc tube and the filament have separate inleads for external connections. The switch is closed at room temperature, allowing the filament to light up immediately at a cold start and providing an instant-on feature. During normal operation, heat and light radiated by the arc tube cause the switch to open and turn off the filament. The small size of the arc tube favors a heat balance which allows the thermal switch to cool and reclose quickly in the event of a current interruption, thereby assuring lighting after an acceptably brief delay in the event of a hot restart.
    Type: Grant
    Filed: March 10, 1978
    Date of Patent: October 9, 1979
    Assignee: General Electric Company
    Inventor: Richard L. Hansler
  • Patent number: 4170746
    Abstract: Miniature high pressure metal vapor lamps containing mercury in a discharge volume of one cubic centimeter or less when operated at low frequencies have extremely high reignition voltages; the problem is compounded in metal halide lamps, particularly during warm-up. Ballast designs capable of coping with these conditions at 60 Hz have disadvantages. The discovery of the existence of resonance-free regions in the frequency range between 20 and 50 KHz has made stable and efficient lamp performance possible through the use of compact, practical and economical high frequency ballasts.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: October 9, 1979
    Assignee: General Electric Company
    Inventor: John M. Davenport
  • Patent number: 4170619
    Abstract: 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: Grant
    Filed: September 19, 1977
    Date of Patent: October 9, 1979
    Assignee: General Electric Company
    Inventor: Elmer G. Fridrich
  • Patent number: 4169875
    Abstract: Increased optical transmission is provided for a body of light transmissive polycrystalline alumina having relatively uniform size equiaxed grains of alumina and which is essentially free of porosity and secondary phase material. A tube of the improved optical material can be used as the light transmissive envelope for high intensity discharge lamps especially sodium and other metal vapor lamps exhibiting increased light output as a result of said improved optical transmission. A method of producing the improved optical material is also disclosed.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: October 2, 1979
    Assignee: General Electric Company
    Inventors: Harry M. Laska, Nelson Grimm
  • Patent number: 4167773
    Abstract: A photoflash lamp array comprising a plastic housing containing flash lamps having lead-in wires connected to a circuit board carrying switching circuitry for sequentially firing the flash lamps. A combined shield and flash indicator sheet is positioned between the circuit board and the rear of the housing and is contoured to have side portions extending along the side walls of the housing.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: September 11, 1979
    Assignee: General Electric Company
    Inventor: James M. Hanson
  • Patent number: 4166287
    Abstract: A photoflash lamp array of the FlipFlash type having connector tabs each having three terminals for connection to three contacts of a camera socket, two of the socket contacts being electrically connected together. The two terminals of the array intended for connection to the two socket contacts which are electrically connected together, are electrically connected together in the flash array.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: August 28, 1979
    Assignee: General Electric Company
    Inventor: Harry Atwood
  • Patent number: 4161672
    Abstract: High pressure discharge lamps containing a fill of mercury and metal halides, having a power input of 250 watts or below and useable for general illuminating purposes achieve higher efficacy by developing high end temperatures without excessively obstructing the transmission of light and without creating excessive thermal losses through radiation and conduction. To reduce the obstruction of light, heat-conserving coatings on the lamp ends are preferably omitted and small neck seals are used which serve also to reduce thermal losses. The lamps are constructed with an aspect ratio of arc chamber length to diameter from 0.9 to 2.5 and with an electrode insertion factor from 0.1 to 0.6 and operate with a wall loading from 10 to 35 watts/cm.sup.2 and with an arc loading from 60 to 150 watts/cm.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: July 17, 1979
    Assignee: General Electric Company
    Inventors: Daniel M. Cap, William H. Lake
  • Patent number: 4161617
    Abstract: A method and apparatus is described for melting of a glass batch with electrical energy supplied by electrodes disposed in a vertically oriented melting chamber and which ameliorates the problems encountered when the raw batch blanket cannot be continuously and uniformly melted in said chamber. Specifically, improved electrode heating means are provided to generate localized hot spots in the molten glass adjacent the underside of the batch blanket and cause a flow of gas bubbles upwardly through the glass at the hot spot locations for escape through the batch blanket. The electrical energy rate supplied to said electrode means is also controlled so that a crust of only partially melted foam-type glass material is not formed within the batch blanket to impede escape of the gas bubbles. The improved system can further include cooperative means to refine the molten glass being continuously withdrawn from the bottom of the melting chamber in a separate refining chamber connected thereto.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: July 17, 1979
    Assignee: General Electric Company
    Inventors: Kenneth S. Hrycik, John H. Leonhardt, William J. Prentice, Jr.
  • Patent number: 4155736
    Abstract: A glass support bead through which lead-in wires extend within a miniature type of flash lamp is shaped to have a raised narrow ridge extending between the lead-in wires so that when the lamp flashes the lead-in wires will melt back at the sides of the raised ridge of the support bead. The support bead is formed by shaping jaws which squeeze against the heat-softened bead material to form the raised narrow ridge.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: May 22, 1979
    Assignee: General Electric Company
    Inventors: Victor A. Levand, Jr., Robert M. Anderson
  • Patent number: 4156271
    Abstract: A reflector lamp is disclosed in which the lamp includes an integral reflector with the filament of the lamp in a predetermined relation with the focus of the reflector.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: May 22, 1979
    Assignee: General Electric Company
    Inventor: Joseph F. Vercellotti
  • Patent number: 4151445
    Abstract: An instant light lamp combining a miniature arc tube and a standby filament in a sealed vitreous envelope is operated by a high frequency power supply combined with a filament control circuit. The power supply comprises transforming means including voltage sensing means having an output proportional to the drop across the arc tube. The control circuit comprises an electronic switch for energizing the filament and a comparator circuit which has an output gating on the switch when the sensing means output is either above a high limit or below a low limit.
    Type: Grant
    Filed: February 15, 1978
    Date of Patent: April 24, 1979
    Assignee: General Electric Company
    Inventors: John M. Davenport, Michael N. Diamond
  • Patent number: 4150317
    Abstract: Increased optical transmission is provided for a body of light transmissive polycrystalline alumina having relatively uniform size equiaxed grains of alumina and which is essentially free of porosity and secondary phase material. A tube of the improved optical material can be used as the light transmissive envelope for high intensity discharge lamps especially sodium and other metal vapor lamps exhibiting increased light output as a result of said improved optical transmission. A method of producing the improved optical material is also disclosed.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: April 17, 1979
    Assignee: General Electric Company
    Inventors: Harry M. Laska, Nelson Grimm
  • Patent number: 4149022
    Abstract: A power control system to distribute the electrical energy being supplied to a glass melting furnace of the vertically oriented type wherein raw glass batch is fed at the top level of the melting chamber and molten glass withdrawn at the bottom level of said chamber. Specifically, the present control system supplies electrical power to three sets of electrodes located at different elevation levels in the melting chamber so that when power is increased to the intermediate level electrodes, there is a decrease in power applied to the top level electrodes while a constant power ratio is maintained between the intermediate and bottom level electrodes. Said control system can further include cooperative electrode heating means to refine the molten glass being continuously withdrawn from the bottom of the melting chamber in a separate refining chamber connected thereto.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: April 10, 1979
    Assignee: General Electric Company
    Inventor: Kenneth S. Hrycik
  • Patent number: 4147823
    Abstract: A marking ink for glass and ceramic substrates is disclosed which can be deposited from a liquid dispersion and heat-cured rapidly to provide an insoluble adherent film. The adhesive binder for the marking ink is an inorganic cement produced by heat-reaction between phosphoric acid and an aluminum salt of a weak organic acid to form an insoluble vitreous matrix in the final product. Various liquid dispersions for said marking ink are disclosed which are particularly suitable for application as indicia means upon the glass envelope of an electric lamp and can be applied during conventional lamp manufacture.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: April 3, 1979
    Assignee: General Electric Company
    Inventor: Francois A. Lavallee
  • Patent number: 4146814
    Abstract: 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.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: March 27, 1979
    Assignee: General Electric Company
    Inventor: Joseph J. Wojtowicz
  • Patent number: 4146917
    Abstract: Reflecting coating means are provided to replace the conventional reflector cavities surrounding each photoflash lamp of a multilamp photoflash array. A reflective adhesive coating for this purpose can be applied to each photoflash lamp around a portion of the lamp circumference to reflect the light outwardly in a desired direction. A reflective adhesive coating can also be applied to the circuit board member used with a photoflash lamp array to provide sequential firing of flash lamps as an alternate means to provide the desired light reflection and without need for individual lamp processing in achieving this result. The coating material comprises light reflective particulate solids bonded to the substrate with an adhesive binder.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: March 27, 1979
    Assignee: General Electric Company
    Inventors: Edward J. Collins, Vaughn C. Sterling, Harihar D. Chevali
  • Patent number: 4144418
    Abstract: A voltage sensitive switch is provided characterized by an irreversible change in resistance from a high resistance state greater than one megohm to a low resistance state less than one thousand ohms and comprising a mixture of substantially pure grade copper powder with copper oxide powder which further contains a binder. Said switch interconnects a pair of spaced electrodes for use in sequentially firing a plurality of flash lamps.
    Type: Grant
    Filed: May 27, 1977
    Date of Patent: March 13, 1979
    Assignee: General Electric Company
    Inventors: Roland T. Girard, George A. Rice, Arthur N. DeTommasi
  • Patent number: 4141036
    Abstract: The present invention relates to a solid state color camera in which a solid state imager is combined with a stripe filter and a color processor to obtain a three color electrical signal. The color filter is a composite filter consisting of a first sequence of pass and rejection stripes for one color alternating at the sensor interval and a second sequence of pass and rejection stripes for a second color alternating at twice the sensor interval. In one form of the invention, the imager is a charge injection device, scanned two sensor elements at a time to produce simultaneous but separate odd and even sensor outputs. The color processing network is coupled to these separate outputs, and uses combination, delay and sampling circuitry to obtain the three color electrical signals. The invention is applicable to other forms of solid state imagers including both charge injection and charge coupled devices and to other scanning techniques.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: February 20, 1979
    Assignee: General Electric Company
    Inventor: Max H. Diehl
  • Patent number: 4139794
    Abstract: A glass halogen, miniature incandescent lamp comprises at least two conductive pins for electrical contact and a molded seal area for secure mechanical contact in a socket.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: February 13, 1979
    Assignee: General Electric Company
    Inventors: Robert N. Malm, Charles W. Cox