Patents Represented by Attorney, Agent or Law Firm Andrew C. Siminerio
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Patent number: 5670966Abstract: The present invention provides a transparent antenna for an automobile. The antenna includes a glass substrate a first electroconductive antenna element positioned on a central portion of a major surface of said substrate, a second electroconductive antenna element positioned on the major surface of the substrate, spaced from the first element, and at least one electroconductive connector extending between the antenna elements and overlaying and electrically interconnected with a portion of both the first and second antenna elements. A portion of the connector extends beyond the periphery of the glass substrate to be connected to an external connector. The first element and preferably both elements are a transparent, electroconductive coating. In one particular embodiment of the invention, the first element is spaced from the peripheral edge of the substrate and the second element is positioned between the first element and the substrate edge.Type: GrantFiled: December 27, 1994Date of Patent: September 23, 1997Assignee: PPG Industries, Inc.Inventors: Peter T. Dishart, Frank J. Pazul, James F. Wilson
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Patent number: 5669952Abstract: The present invention discloses a method for shaping glass sheets to deeply sagged configurations using a lower outline mold and an upper shaping mold while minimizing marking of the sheets by shaping molds. The outline mold includes a support rail which generally corresponding to the desired curvature of a peripheral portion of the sheets to be shaped and supports the glass sheets as they are heated and sagged by gravity to a preliminary shape. The outline mold and the upper mold are then moved relative to each other to position the molds either in close proximity to each other or to press the upper mold against the glass sheets. Pressurized gas is then directed from the mold to at least the unsupported central portions of the preliminarily shaped sheets, to urge these unsupported portions downward and shape the sheets to a desired configuration.Type: GrantFiled: October 14, 1994Date of Patent: September 23, 1997Assignee: PPG Industries, Inc.Inventors: George R. Claassen, Irvin A. Wilson, David B. Rayburn, John L. McLaughlin, Rudolph A. Karlo, Jeffrey L. Marietti
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Patent number: 5649990Abstract: A flexible shaping ring for shaping heat softened glass sheets lifts a heat softened glass sheet and presses it against the shaping surface of an upper mold. As the shaping ring presses the marginal edge portion of the sheet against the upper mold, its shaping surface deforms to generally conform to a corresponding portion of the upper mold. A press ring subsequently contacts the shaping ring and presses it against the upper mold to further shape the marginal edge portion of the glass sheet and ensure the marginal edge completely conforms to the shape of the upper mold.Type: GrantFiled: September 14, 1995Date of Patent: July 22, 1997Assignee: PPG Industries, Inc.Inventors: Robert G. Frank, Samuel E. Behanna, Rudolph A. Karlo, Jeffrey L. Marietti
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Patent number: 5596335Abstract: The present invention provides a connector for interconnecting electroconductive elements within a laminate. The connector includes a flat electroconductive member having a first portion with at least one connecting segment which overlays an electroconductive element within the laminate, and a second portion extending from the first portion. One end of the second portion of the connector includes a rigid, integral connection terminal which includes multiple plies of the member. Selected portions of the first portion, and preferably at least the connecting segment, are coated with an adhesive. The adhesive may be electrically conductive or non-electrically conductive. In one particular embodiment of the invention the maximum thickness of the first portion of the connector is about 0.10 mm and the maximum width of the first portion, other than the connection segment, is about 6.4 mm.Type: GrantFiled: December 27, 1994Date of Patent: January 21, 1997Assignee: PPG Industries, Inc.Inventors: Peter T. Dishart, Frank J. Pazul
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Patent number: 5593929Abstract: A green tinted, ultraviolet absorbing glass is disclosed having a standard soda-lime-silica base glass composition and a colorant portion consisting essentially of on a weight basis: less than 2.0% TiO.sub.2 and greater than 0.6% total iron (expressed as Fe.sub.2 O.sub.3) with the ratio of FeO/total iron less than 0.35. The glass exhibits an ultraviolet transmittance no greater than 38 percent (300 to 400 nanometers) and a luminous transmittance (illuminant A) of at least 70 percent at thicknesses ranging from 0.154 to 0.189 inches.Type: GrantFiled: November 13, 1992Date of Patent: January 14, 1997Assignee: PPG Industries, Inc.Inventors: John F. Krumwiede, Joseph A. Gulotta, Larry J. Shelestak
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Patent number: 5565388Abstract: The present invention provides a glass composition having a bronze color and a luminous (visible) transmittance of 70% or greater. The base glass is a soda-lime-silica composition and iron and selenium are added as colorants. In one particular embodiment of the invention, a bronze colored glass with a luminous transmittance (C.I.E. illuminant A) of 70% and higher at a thickness of 4.1 millimeters may be attained by using as colorants: 0.4 to 0.6 wt. % Fe.sub.2 O.sub.3, 0.09 to 0.17 wt. % FeO and 3 to 11 PPM Se. In addition, it is preferred that the total solar energy transmittance be no greater than 60%.Type: GrantFiled: April 3, 1995Date of Patent: October 15, 1996Assignee: PPG Industries, Inc.Inventors: John F. Krumwiede, Larry J. Shelestak, Anthony V. Longobardo
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Patent number: 5547129Abstract: The present invention provides a multiple nozzle liquid spray assembly having a longitudinally extending bar member, receivers to allow securing of nozzles along the bar, a coolant conduit extending along at least a portion of the bar, liquid and gas conduits extending along the bar in close proximity to each of the receivers, and first and second sets of passages interconnecting each of the receivers with the liquid or gas conduits. In one particular embodiment of the invention, the coolant conduit includes a first portion which extends from a coolant inlet along a first longitudinal side of the bar member and a second portion which extends from a coolant outlet along an opposing longitudinal side of the bar member. The liquid conduit and gas conduit generally parallel each other and extend along the bar member between the first and second portions of the cooling conduit.Type: GrantFiled: September 30, 1994Date of Patent: August 20, 1996Assignee: PPG Industries, Inc.Inventors: Fred A. Fortunato, Barry L. Shadle, Helmut Franz
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Patent number: 5543601Abstract: A multiple terminal assembly includes a plurality of connectors secured within a housing in close proximity to and electrically insulated from each other. The terminals include an electroconductive strip extending outwardly from one side of the housing and an electroconductive tab extending outwardly from an opposite side of the housing. The terminals are spaced apart a fixed, predetermined distance along the housing so that when the assembly is used to supply electrical power to a structure having current carrying members extending to a connection area along an edge portion of the structure, each of the terminal strips is aligned with one of the current carrying members at the connection area and each of the tabs is aligned with a corresponding connector of a multiple connector harness assembly.Type: GrantFiled: May 3, 1993Date of Patent: August 6, 1996Assignee: PPG Industries Inc.Inventors: Bruce A. Bartrug, Harry S. Koontz, John A. Winter
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Patent number: 5507852Abstract: The present invention provides a quench for cooling hot sheet material. The quench includes a plurality of generally horizontally extending, spaced apart nozzle assemblies, each having a longitudinally extending air supply conduit with orifices extending to an outer surface of the conduit. A first plenum is interconnected to a first end of each of the conduits and a second plenum is interconnected to a second end of each of the conduits to allow cooling fluid to pass from the plenums into each of the nozzle assemblies through the conduit. The plenums are located at positions spaced laterally outward from the nozzle assemblies.Type: GrantFiled: January 7, 1994Date of Patent: April 16, 1996Assignee: PPG Industries, Inc.Inventors: Robert G. Frank, Michael T. Fecik, DeWitt W. Lampman
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Patent number: 5492750Abstract: The present invention provides a reusable mask to be used in a coating operation to cover selected portions of a substrate from being coated and minimize ghosting about the periphery of the coating. The mask includes first member having a configuration which generally approximates the area of the substrate to be covered and an edge portion which closely follows the desired peripheral shape of said coating, and a second member underlying at least a portion of the first member and having an edge portion which precisely corresponds to the desired peripheral shape of the coating. In one particular embodiment of the invention, the edge portion of the second member is no greater than 0.030 inches thick, and preferably no greater than 0.010 inches thick to minimize any ghosting of the coating about its periphery caused by the second member. In addition, the distance between the edge portions is sufficient to eliminate any shading of the coating about its periphery caused by the first member.Type: GrantFiled: September 26, 1994Date of Patent: February 20, 1996Assignee: PPG Industries, Inc.Inventors: Robert T. Shumaker, Jr., Peter T. Dishart, Randy R. Kadunce
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Patent number: 5470366Abstract: The present invention provides a glass sheet shaping arrangement whereby a glass sheet may be conveyed through a shaping station without being shaped and deposited into a glass collector beneath an upstream portion of the adjacent quench without impacting the lower quench or interfering with the operation of the quench. A furnace, shaping station and cooling station are all linearly aligned so that a glass sheet progresses through the glass sheet shaping arrangement without changing its advancing direction. A glass sheet is conveyed in a first direction along a first generally horizontal plane through the furnace to heat the sheet to its heat softening temperature. The sheet continues into the shaping station where it is lifted into engagement with an upper vacuum surface.Type: GrantFiled: January 7, 1994Date of Patent: November 28, 1995Assignee: PPG Industries, Inc.Inventors: Robert G. Frank, James H. Schwartz
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Patent number: 5434384Abstract: A windshield having an upper vision area with a coating and a lower heating area aligned with a wiper blade storage area. When the coating is electroconductive, first and second bus bars are provided to selectively connect the coating to the terminals of a power source to provide a windshield heating circuit for defogging or defrosting its vision area. One of the bus bars is also connected to a heating element along a lower area of the windshield that faces a storage area for windshield wipers. The heating element is selectively connected to a different terminal of the power source from the terminal connected to one of the bus bars to cooperate with one of the bus bars and the power source to provide a storage area heating circuit. The windshield heating circuit and the storage area heating circuit may be operated independently, either separately or simultaneously, from a common electric power source.Type: GrantFiled: July 22, 1991Date of Patent: July 18, 1995Assignee: PPG Industries, Inc.Inventor: Harry S. Koontz
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Patent number: 5414240Abstract: An electrically heatable windshield with a hidden bus bar configuration. A border of opaque ceramic material, preferably a lead borosilicate enamel, is bonded to an interior surface of the transparency about its periphery. Opposing electroconductive bus bars, preferably a low frit content silver-containing ceramic material, are bonded to the ceramic material so that the entire inner edge of the bus bar overlays a portion of the ceramic material and is spaced from the inner edge of the border, providing an intermediate portion of the border between the bus bars and transparency surface that is not covered by the bus bars. An electro-conductive coating is applied to the transparency to interconnect the bus bars and covers to the inner surface of the transparency, the bus bars and the intermediate portion of the ceramic material border so that electric current flowing between the bus bars must flow through the portion of the coating that covers the intermediate portion of the border.Type: GrantFiled: December 27, 1988Date of Patent: May 9, 1995Assignee: PPG Industries, Inc.Inventors: Thomas M. Carter, Charles R. Coleman, Russell C. Criss, Frank H. Gillery, Pamela L. Martino, Amy M. Roginski, John A. Winter, Terry L. Wolfe, James J. Finley
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Patent number: 5401287Abstract: Material selected from the group consisting essentially of molybdenum, arsenic, antimony, bismuth, copper, silver, potassium dichromate and iron chromite, is added during the manufacture of soda-lime-silica float glass to reduce the occurrences of nickel sulfide stone defects. Material is added in sufficient amounts such that the resulting glass is at least 0.010 wt. % selected material. In a preferred embodiment of the invention, molybdenum is added in the form of sodium molybdate such that the resulting glass is at least 0.015 wt. % molybdenum.Type: GrantFiled: August 19, 1993Date of Patent: March 28, 1995Assignee: PPG Industries, Inc.Inventors: George A. Pecoraro, Amarendra Mishra, Larry J. Shelestak, James V. Jones
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Patent number: 5401286Abstract: A flexible ring mold for shaping heat softened glass sheets is provided with an inner ring having a plurality of posts which help support the ring mold and maintain the mold's generally planar configuration during the initial lifting and shaping of a supported glass sheet. Prior to the entire glass sheet being pressed against an upper mold surface, the ring mold is separated from the support posts.Type: GrantFiled: November 12, 1993Date of Patent: March 28, 1995Assignee: PPG Industries, Inc.Inventors: Dennis M. Goolsbay, Larry W. Deffendoll, Patrick L. Singleton
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Patent number: 5393593Abstract: A neutral, dark gray, soda-lime-silica glass having luminous transmittance less than 35 percent, infrared transmittance less than 20 percent, and total solar energy transmittance less than 22 percent (all at 3.9 millimeter thickness) is produced with colorants consisting essentially of 1.0 to 2.2 percent by weight total iron, at least 0.20 percent FeO, 0.01 to 0.03 percent CoO, and 0.0005 to 0.005 percent Se. The flat glass product having such a composition is particularly suitable for use as privacy glazing. The use of the glass as a substrate for a reflectively coated product is also disclosed. A low transmittance, reflective coated article is disclosed comprising a soda-lime-silica glass substrate having luminous transmittance less than 35 percent, infrared transmittance less than 20 percent, and total solar energy transmittance less than 22 percent (all at 3.Type: GrantFiled: October 12, 1993Date of Patent: February 28, 1995Assignee: PPG Industries, Inc.Inventors: Joseph A. Gulotta, John F. Krumwiede, Luke A. Kutilek, Anthony V. Longobardo, Robert B. Heithoff
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Patent number: 5385872Abstract: A green tinted, ultraviolet absorbing glass is disclosed having a standard soda-lime-silica base glass composition and a colorant portion consisting essentially of on a weight basis: less than 2.0% total CeO.sub.2, V.sub.2 O.sub.5, TiO.sub.2 or MoO.sub.3 and greater than 0.7% total iron (expressed as Fe.sub.2 O.sub.3) with the ratio of FeO/total iron less than 0.35.The glass reduces the amount of costly cerium required to yield low ultraviolet transmittance, viz., no greater than 31 percent (300 to 390 nanometers) at a reference thickness of 3.9 millimeters.Type: GrantFiled: March 26, 1992Date of Patent: January 31, 1995Assignee: PPG Industries, Inc.Inventors: Joseph A. Gulotta, Larry J. Shelestak
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Patent number: 5385593Abstract: The present invention provides a glass forming composition for encapsulating selenium which includes, by weight percent of raw materials, 20 to 50% silica and 50 to 80% alkali and alkaline earth materials. The composition has a liquidus temperature between 600.degree. to 1200.degree. C., preferably up to 1000.degree. C., and a viscosity up to 10,000 Poise at said liquidus temperature, preferably up to 5,000 Poise. The alkali and alkaline materials preferably include at least one group of materials combined in an approximate eutectic molar ratio. In one particular embodiment of the invention, the alkali and alkaline earth materials include groups of nitrates, such as KNO.sub.3, NaNO.sub.3 and/or Ca(NO.sub.3).sub.2, and/or carbonates, such as K.sub.2 CO.sub.3, Na.sub.2 C0.sub.3 and/or Li.sub.2 CO.sub.3.Type: GrantFiled: March 29, 1993Date of Patent: January 31, 1995Assignee: PPG Industries, Inc.Inventor: Anthony V. Longobardo
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Patent number: 5320661Abstract: A traveling vacuum pickup engages heat softened glass sheets in a transfer station and transfers them to one of two shaping stations positioned along opposing sides of a transfer station. After depositing the sheet within one of the shaping stations, the pickup return to the transfer station to receive the next heat softened sheet. The shaping stations may include pressing arrangements that shape successive sheets to different configurations. The vacuum pickup may include two sheet engaging surfaces positioned relative to each other such that as one engaging surface engages a glass sheet and transfers it to one of the shaping stations, the other engaging surface is being positioned within the transfer station to receive the next glass sheet.Type: GrantFiled: July 2, 1992Date of Patent: June 14, 1994Assignee: PPG Industries, Inc.Inventors: Michael T. Fecik, Robert G. Frank
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Patent number: 5286271Abstract: Glass sheets are heated to their heat softening temperature and transferred to a shaping station having an upper vacuum mold with a downwardly facing shaping surface corresponding to the desired shape of the glass sheet. The glass sheet is lifted into engagement with the shaping surface and held thereagainst by vacuum. The mold and the glass sheet are then moved to a transfer station and the vacuum is released to deposit the shaped glass sheet onto a contoured conveying surface which generally conforms to the shaped glass sheet. The glass sheet is deposited onto the contoured conveying surface as it is moving from the shaping station to the transfer station to impart movement in the glass sheet along the contoured conveying surface and minimize marring of the glass sheet as it contacts the contoured conveying surface.Type: GrantFiled: July 2, 1992Date of Patent: February 15, 1994Assignee: PPG Industries, Inc.Inventors: Richard E. Rueter, Robert G. Frank, Michael T. Fecik