Patents Represented by Attorney, Agent or Law Firm Douglas E. Stoner
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Patent number: 6208097Abstract: An adhesion control system for a locomotive is provided for achieving and maintaining a maximum adhesion value.Type: GrantFiled: December 6, 1999Date of Patent: March 27, 2001Assignee: General Electric CompanyInventors: Suresh Baddam Reddy, Jeffrey Louis Diagle, Bret Dwayne Worden, Harry Kirk Mathews, Jr., Edgar Thomas Balch, Allan John Connolly, Ajith K. Kumar
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Patent number: 6207849Abstract: A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system having catalytic amounts of the following components: a Group VIII B metal source; a combination of inorganic co-catalysts including a copper source and at least one of a titanium source or a zirconium source; an onium chloride composition; and a base. Alternative embodiments include inorganic co-catalyst combinations of a lead source and at least one of a titanium source or a manganese source.Type: GrantFiled: January 31, 2000Date of Patent: March 27, 2001Assignee: General Electric CompanyInventors: Kirill Vladimirovich Shalyaev, Grigorii Lev Soloveichik, Bruce Fletcher Johnson, Donald Wayne Whisenhunt, Jr.
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Patent number: 6201685Abstract: An ultracapacitor having two solid, nonporous current collectors, two porous electrodes separating the collectors, a porous separator between the electrodes and an electrolyte occupying the pores in the electrodes and separator. At least one of the current collectors comprises a conductive metal substrate coated with a metal nitride, carbide or boride coating.Type: GrantFiled: October 5, 1998Date of Patent: March 13, 2001Assignee: General Electric CompanyInventors: Elihu Calfin Jerabek, Mati Mikkor
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Patent number: 6201146Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing titanium. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.Type: GrantFiled: April 29, 1999Date of Patent: March 13, 2001Assignee: General Electric CompanyInventors: James Lawrence Spivack, James Norman Cawse, Donald Wayne Whisenhunt, Jr., Bruce Fletcher Johnson, Grigorii Lev Soloveichik
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Patent number: 6199664Abstract: A spring motor for driving an electric power generator with constant power includes a crank-up spool, a take-up spool, and a relatively wide, flat tape spring which winds in a relaxed condition on the take-up spool. In one form, the spring has a width which varies approximately linearly from one end to another end so as to generate a constant torque at a fixed radius from an axis of the crank-up spool as the spring unwinds. In another form, the spring width is constant and a separate drum is driven by contact with the unwinding spring, with the separate drum driving an output shaft. In still another form, an idler wheel is driven by contact with the spring and the output shaft is driven from the idler wheel through gear contact with the periphery of an output drum mounted on the output shaft.Type: GrantFiled: November 16, 1998Date of Patent: March 13, 2001Assignee: General Electric CompanyInventors: John Eric Tkaczyk, Jerome Johnson Tiemann
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Patent number: 6201887Abstract: A method and apparatus are provided for identifying a failed receiver channel in an ultrasonic imaging system. The method includes the steps of identifying a location of an artifact on a display of the ultrasonic imaging system. The method further includes the steps of retrieving a set of receiver channel locations associated with the display and determining a channel associated with the identified artifact by matching an expected outline of a failed channel with the identified artifact.Type: GrantFiled: November 17, 1998Date of Patent: March 13, 2001Assignee: General Electric CompanyInventors: Yibin Zheng, Bruce Richard Everling, Lon Raymond Bischoff, Terry Wayne Taylor
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Patent number: 6199746Abstract: A method of repairing cracks, imperfections, and the like in a cast article. A frusto-conical aperture is created in the article in the location of the crack or imperfection. A mating tapered plug is prepared such that the tapered plug can fit into the aperture so that the sloped side walls of the tapered plug evenly and unilaterally rest on frusto-conical sides of the aperture. The tapered plug is disposed into the aperture, and bonding material is applied between the surfaces of the tapered plug and the aperture, before or after insertion of the tapered plug into the aperture. The article is thereafter heated such that the bonding material joins the surfaces of the tapered plug and the aperture. The outer end of the tapered plug thereafter is polished so that such outer end is approximately level with the article's outer side in a refinement of the invention, the plug member may be pushed into the aperture such that a controlled interference fit is produced.Type: GrantFiled: August 2, 1999Date of Patent: March 13, 2001Assignee: General Electric CompanyInventors: Paul Leonard Dupree, Melvin Robert Jackson
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Patent number: 6201462Abstract: An open magnet has vertically aligned first and second assemblies each with at least one superconductive main coil. At least one support member is vertically aligned and attached to, the first and second assemblies. At least one cryocooler coldhead is aligned generally horizontally and has a housing which is attached to, and receives weight-bearing support from, one of the first and second assemblies.Type: GrantFiled: November 9, 1999Date of Patent: March 13, 2001Assignee: General Electric CompanyInventors: Evangelos Trifon Laskaris, Yu Wang, Timothy John Havens, Longzhi Jiang
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Patent number: 6196427Abstract: Systems for controlling the superheat of the stream of molten metal from an electroslag refining apparatus is taught. The systems include the introduction of unrefined metal into an electroslag refining process apparatus in which the unrefined metal is first melted at the upper surface of the refining slag. The molten metal is refined as it passes through the molten slag. The refined metal is collected in a cold hearth apparatus having a skull of refined metal formed on the surface of the cold hearth for protecting the cold hearth from the leaching action of the refined molten metal. A cold finger bottom pour spout or exit orifice is formed at the bottom of the cold hearth to permit dispensing of molten refined metal from the cold hearth.Type: GrantFiled: December 21, 1995Date of Patent: March 6, 2001Assignee: General Electric CompanyInventors: William Thomas Carter, Jr., Mark Gilbert Benz, Robert John Zabala, Bruce Alan Knudsen, Paul Leonard Dupree
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Patent number: 6196823Abstract: A die clamp assembly for an extruder comprises at least one passage through which product being extruded flows. The die clamp assembly is attached to an extruder and comprises a last barrel that is connectable to the extruder. The last barrel comprising a flange and the extruder and last barrel define at least one passage through which product flows; at least one die body comprising at least one die body passage that communicates with the at least one passage; and at least one die plate that comprises at least one die plate passage that communicates with the die body passage and at least one opening so product can be extruded from the at least one opening. A clamp collar assembly connects corresponding peripheral surfaces of the last barrel to the die body, and comprises a closed position that connects the last barrel to the die body and an open position that permits separation of the last barrel and the die body.Type: GrantFiled: March 14, 2000Date of Patent: March 6, 2001Assignee: General Electric CompanyInventors: Dennis Joseph Coyle, Fernando Alves Silva, Eric Thomas Gohr, Ricky Joe Renschler
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Patent number: 6197187Abstract: A method for treating a contaminated media. The method comprises disposing electrodes at the contaminated media, injecting a salt-containing solution into contaminated media, applying an electric voltage between electrodes imposed peripherally to the region, forming ions from the salt-containing solution, and migrating the ions between the electrodes across the contaminated media. The ions of the salt-containing solution migrate into at least a portion of the contaminated media to treat the contaminated media.Type: GrantFiled: May 12, 1999Date of Patent: March 6, 2001Assignee: General Electric CompanyInventors: Roy Fred Thornton, Andrew Philip Shapiro, Timothy Mark Sivavec
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Patent number: 6198620Abstract: An ultracapacitor includes two solid, nonporous current collectors, two porous electrodes separating the collectors, a porous separator between the electrodes and an electrolyte occupying the pores in the electrodes and separator. The electrolyte is a polar aprotic organic solvent and a salt. The porous separator comprises a wet laid cellulosic material.Type: GrantFiled: September 29, 1998Date of Patent: March 6, 2001Assignee: General Electric CompanyInventors: Chang Wei, Elihu Calvin Jerabek, Oliver Harris LeBlanc, Jr.
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Patent number: 6197916Abstract: A method for preparing bisphenol A is disclosed, with a selectivity for the p,p′-isomer of greater than about 97%. The method involves reacting phenol with p-isopropenylphenol or 2-(4-hydroxyphenyl)-2-propanol in the presence of a catalyst, at a reaction temperature of no greater than about 65° C. The bisphenol A product is preferably purified by a technique which omits the use of adduct crystallization.Type: GrantFiled: August 30, 1999Date of Patent: March 6, 2001Assignee: General Electric CompanyInventors: Eric James Pressman, Joseph Richard Wetzel
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Patent number: 6198371Abstract: A vertically-aligned open magnet includes first and second (i.e., top and bottom) assemblies each having a longitudinally-extending and vertically-aligned axis, a superconductive main coil, and a vacuum enclosure enclosing the main coil. At least one support beam has a first end attached to the first assembly and has a second end attached to the second assembly. An annularly-cylindrical support skirt is coaxially aligned with the axes, has a first longitudinal end attached to the second assembly and has a second longitudinal end supportable by a floor.Type: GrantFiled: November 9, 1999Date of Patent: March 6, 2001Assignee: General Electric CompanyInventors: Evangelos Trifon Laskaris, Yu Wang, James Pellegrino Alexander
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Patent number: 6197991Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing lead and a catalytic amount of an inorganic co-catalyst containing titanium. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.Type: GrantFiled: April 29, 1999Date of Patent: March 6, 2001Assignee: General Electric CompanyInventors: James Lawrence Spivack, Donald Wayne Whisenhunt, James Norman Cawse, Bruce Fletcher Johnson, Grigorii Lev Soloveichik, John Yaw Ofori, Eric James Pressman
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Patent number: 6193412Abstract: The present method comprises determination of surface polarity of an inorganic material by measurement of the net heat of inert gas adsorption on the material surface, preferably by measurement of the BET constant C. The analysis is fast and easy to execute, and provides high signal-to-noise ratio. It is applicable to many surfaces, such as those containing silanol groups, regardless of the nature of the hydrophobic groups used in surface treatment of the material.Type: GrantFiled: February 26, 1999Date of Patent: February 27, 2001Assignee: General Electric CompanyInventors: John Aibangbee Osaheni, Stanlee Teresa Buddle
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Patent number: 6193850Abstract: The present invention provides a method for directly determining the concentration of a target species, such as Fries product, in a composition comprising aromatic carbonate chain units. In an exemplary embodiment, the method includes the steps of irradiating a portion of the composition with electromagnetic radiation at an excitation wavelength sufficient to cause the target species to emit a fluorescence spectrum; detecting at least a portion of the fluorescence spectrum; and determining the concentration of the target species from the fluorescence spectrum. In addition to detecting Fries product in formed polycarbonate materials, the method can also be utilized to directly determine the concentration of a target species in parallel polycarbonate reactor systems.Type: GrantFiled: September 20, 1999Date of Patent: February 27, 2001Assignee: General Electric CompanyInventors: Radislav Alexandrovich Potyrailo, John Patrick Lemmon
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Patent number: 6193240Abstract: A seal assembly that seals a gap formed by a groove comprises a seal body, a biasing element, and a connection that connects the seal body to the biasing element to form the seal assembly. The seal assembly further comprises a concave-shaped center section and convex-shaped contact portions at each end of the seal body. The biasing element is formed from an elastic material and comprises a convex-shaped center section and concave-shaped biasing zones that are opposed to the convex-shaped contact portions. The biasing element is adapted to be compressed to change a width of the seal assembly from a first width to a second width that is smaller than the first width. In the compressed state, the seal assembly can be disposed in the groove. After release of the compressing force, the seal assembly expands. The contact portions will move toward a surface of the groove and the biasing zones will move into contact with another surface of the groove.Type: GrantFiled: January 11, 1999Date of Patent: February 27, 2001Assignee: General Electric CompanyInventors: Roger Neal Johnson, William David Longfritz
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Patent number: 6191681Abstract: A current limiting device utilizes an electrically conductive composite material and an inhomogeneous distribution of resistance structure. The electrically conductive composite material comprises an organic binder portion comprising a high Tg epoxy and a low viscosity polyglycol epoxy; at least one epoxy curing agent; and a conductive powder.Type: GrantFiled: July 21, 1997Date of Patent: February 20, 2001Assignee: General Electric CompanyInventors: Herbert Stanley Cole, Theresa Ann Sitnik-Nieters, Anil Raj Duggal
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Patent number: 6191752Abstract: High frequency (HF) antennas for wideband signals are used in the tracking of railcars. These are rugged antennas especially adapted to the hostile environment of a railcar. One antenna is in the form of a magnetic loop. Another generates an electric field produced by a plate mounted just below the railcar undercarriage with an optional dielectric slab situated between the plate and the undercarriage. The antennas need not be specified in terms of optimal parameters since the approach taken is to provide a generic antenna structure adapted to being fitted underneath the carriage of a railcar. This generic structure exhibits a mitigated Q and is capable of broadband tuning. This feature makes the antenna easier and less costly to produce in large quantities and facilitates use of a standard fitting mechanism and installation procedure.Type: GrantFiled: November 29, 1999Date of Patent: February 20, 2001Assignee: General Electric CompanyInventors: Howard Leroy Lester, John Erik Hershey