Patents Represented by Attorney, Agent or Law Firm Andrew C. Siminerio
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Patent number: 7205504Abstract: An interlayer composite includes a plastic sheet having a predetermined outer shape and a major surface; a pair of bus bars, and an adhesive layer securing the bus bars directly on the major surface of the plastic sheet in a fixed relationship to one another.Type: GrantFiled: October 11, 2005Date of Patent: April 17, 2007Assignee: PPG Industries, Ohio, Inc.Inventors: Bruce A. Bartrug, Allen R. Hawk, Robert N. Pinchok, James H. Schwartz
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Patent number: 7190326Abstract: An electrically conductive coating of an automotive heatable windshield has a communication window having an enhanced frequency selective surface having arranged passing areas (uncoated areas) and blocking areas (coated areas) to pass and block, respectively, predetermined wavelengths of the electromagnetic spectrum. In one nonlimiting embodiment, the frequency selective surface includes a plurality columns spaced from one another by a continuous elongated blocking area. Each of the columns includes passing areas with each of the passing areas have a perimeter with a blocking area in the perimeter spaced from the perimeter. The perimeters of the passing areas contact one another with the blocking area of adjacent passing areas spaced from one another. The elongated blocking area between the break lines and columns extend to the perimeter of the communication window.Type: GrantFiled: March 30, 2005Date of Patent: March 13, 2007Assignee: PPG Industries Ohio, Inc.Inventor: Charles S. Voeltzel
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Patent number: 7173750Abstract: An electrochromic window includes a first transparent substrate having a first electrically-conductive coating and a second transparent plastic substrate having a second electrically-conductive coating. An electrochromic medium is located between the first and second electrically-conductive coatings. At least one of the first and second electrically-conductive coatings comprises a metal layer located between first and second metal oxide layers. A plurality of first spaced facilities contact the first electrically-conductive coating and a plurality of second spaced facilities contact the second electrically-conductive coating.Type: GrantFiled: June 22, 2006Date of Patent: February 6, 2007Assignee: PPG Industries Ohio, Inc.Inventor: Thomas G. Rukavina
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Patent number: 7162892Abstract: A method for reducing the defect density of glass comprising melting a glass composition comprising from 65–75 wt. % of SiO2; from 10–20 wt. % of Na2O; from 5–15 wt. % of CaO; from 0–5 wt. % of MgO; from 0–5 wt. % of Al2O3; from 0–5 wt. % of K2O; from 0–2 wt. % Fe2O3; and from 0–2 % FeO, wherein the glass composition has a total field strength index of greater than or equal to 1.23 is disclosed.Type: GrantFiled: September 26, 2003Date of Patent: January 16, 2007Assignee: PGG Industries Ohio, Inc.Inventors: Charlene S. Smith, George A. Pecoraro
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Patent number: 7159756Abstract: The invention relates to using the heat generated during thermal treatment of one or more glass sheets to melt solder. In one nonlimiting embodiment, a lead providing external access to an electrical conductive arrangement, e.g. a conductive member between and connected to spaced bus bars between laminated sheets has an end portion of a connector, e.g. a lead soldered to each of the bus bars during thermal processing of the sheets, e.g. during the lamination of the sheets during a windshield manufacturing process. In another nonlimiting embodiment, the connector is soldered to the electrically conductive arrangement during the annealing of glass blanks following the heating and shaping of the glass blanks. Soldering the leads during the annealing or laminating process eliminated possible thermal damage to the sheet by having the sheet heated during the soldering operation instead of only a small surface portion of the sheet at and eliminates the cost of a separated soldering operation.Type: GrantFiled: August 29, 2003Date of Patent: January 9, 2007Assignee: PPG Industries Ohio, Inc.Inventors: John A. Winter, Cheryl E. Belli, James P. Thiel, Charles S. Voeltzel
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Patent number: 7132625Abstract: A heatable article, e.g. a heatable windshield, having a generally trapezoidal shape has a conductive member, e.g. a conductive coating, between and in contact with a pair of spaced bus bars having different lengths. Selected portions of the coating between the bus bars are segmented to reduce the difference in watt density between the coatings at the bus bars when current moves through the coating. In one non-limiting embodiment, the width of the segments at the longer bus bar is less than the width of the segments at the longer bus bar. With this configuration, the watt density at the bottom of the windshield is increased to more efficiently remove ice and snow. In another non-limiting embodiment, the coating has a communication window to pass frequencies of the electromagnetic spectrum, e.g. RF frequencies, to obtain information from within the vehicle.Type: GrantFiled: October 3, 2002Date of Patent: November 7, 2006Assignee: PPG Industries Ohio, Inc.Inventor: Charles S. Voeltzel
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Patent number: 7130101Abstract: A method for providing preferential coloring to a portion of an electrochromic window assembly, includes the steps of providing an electrochromic window assembly comprising first and second spaced apart transparent substrates defining a chamber therebetween, the first transparent substrate having a first conductive coating and the second transparent substrate having a second conductive coating, the chamber containing an electrochromic medium capable of coloring upon application of electrical potential thereto to provide reduced luminous transmittance; electrically connecting a plurality of first spaced facilities to the first conductive coating for providing the electrical potential to the first conductive coating; electrically connecting a plurality of second spaced facilities to the second conductive coating for providing the electrical potential to the second conductive coating; and applying an electrical current to selected ones of the plurality of first spaced facilities and to selected ones of the pluraType: GrantFiled: October 8, 2002Date of Patent: October 31, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Thomas G. Rukavina, Chia-Cheng Lin
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Patent number: 7122242Abstract: A glass sheet includes a first edge, an opposing, second edge, and an intermediate location between the first edge and second edge. The glass sheet has a first portion extending between the first edge and the intermediate location and a second portion extending between the intermediate portion and the second edge, wherein the first portion has a generally uniform thickness and the second portion has a varying thickness. The thickness of the second portion can either increase or decrease from the intermediate location to the second edge. A laminated transparency incorporating the glass sheet as well as a method of forming a glass ribbon having a changing thickness profile along at least a portion of the width of the ribbon are also disclosed.Type: GrantFiled: March 25, 2003Date of Patent: October 17, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Gerald DiGiampaolo, James A. Zahler, Jennifer M. Garefino
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Patent number: 7105220Abstract: An article having a sealed layered edge, e.g. an automotive laminate and a multiple glazed unit includes a pair of glass sheet in a fixed relationship with one another. A sputtered coating is deposited on a major surface of one of the sheets and includes at least one combination of a metal film, e.g. a silver film and a dielectric film. Discontinuities in the metal film at the marginal edges of the coated sheet provide voids in the metal film to impede or stop corrosion of the metal film. The discontinuities include (1) break lines or segments in the coating, (2) coating thickness variations provided by abrading the coating and (3) spaced discrete coating areas on the marginal edges of the coated sheet. The discontinuities may be made in the metal film using a laser, an abrasive surface, a coating mask and/or coating deletion techniques.Type: GrantFiled: January 29, 2003Date of Patent: September 12, 2006Assignee: PPG Industries Ohio, Inc.Inventors: Glenn E. Freeman, Robert C. Lewetag, James P. Thiel
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Patent number: 7060343Abstract: A heads-up display system includes a laminate and an image projecting source for directing an image onto a first portion of the laminate. The outer major surfaces of the laminate are angularly offset within a first portion is such that an image from the image projector source projected onto a first major surface of the laminate within the first portion is reflected in a manner that reduces double imaging of the reflected image.Type: GrantFiled: March 9, 2005Date of Patent: June 13, 2006Assignee: PPG Industries Ohio, Inc.Inventor: Glenn E. Freeman
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Patent number: 7021110Abstract: A device is disclosed for preparing a U-shaped spacer having a longitudinal axis, wherein the spacer has first and second opposing sides extending from a spacer bottom, and wherein the spacer is to be used as a spacer between glass sheets on insulating frames. A method for producing such spacer features is also disclosed.Type: GrantFiled: May 23, 2003Date of Patent: April 4, 2006Assignee: PPG Industries Ohio, Inc.Inventor: Barent A. Rosskamp
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Patent number: 6995339Abstract: An automotive transparency having a heatable wiper rest area includes a first glass sheet and a second glass sheet secured together by an interlayer material. An opaque band is positioned on the inner surface of the outer glass sheet along a portion of an edge of the outer sheet at an expected wiper rest areas; and an electrically conductive member is positioned on a major surface of the second glass sheet and extends along an edge portion of the second sheet at the wiper rest area. A plurality of bus bars positioned in electrical contact along the conductive member divides the conductive member into a plurality of heatable areas with a first lead electrically interconnecting selected ones of the bus bars and a second lead electrically interconnecting other selected ones of the bus bars with overlying portions of the first and second leads electrically isolated from each other.Type: GrantFiled: September 15, 2003Date of Patent: February 7, 2006Assignee: PPG Industries Ohio, Inc.Inventors: James H. Schwartz, Allen R. Hawk
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Patent number: 6979499Abstract: A display system includes at least one light emitting material having an absorption band carried on a support, wherein the support is a laminated article having a first ply and a second ply; and a projection assembly having an electromagnetic radiation source, the projection assembly configured to direct radiation of one or more selected wavelengths within the absorption band of the light emitting material toward the light emitting material to cause at least a portion of the light emitting material to emit light. The support can be an automotive transparency, a commercial window, a residential window, a commercial sign, an advertising display, and an insulating glass unit. The light emitting material is fluorescent materials, phosphorescent materials, and mixtures thereof.Type: GrantFiled: August 18, 2003Date of Patent: December 27, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Scott D. Walck, Albert Monroe Snider, Jr.
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Patent number: 6953911Abstract: A composite laminate useable in the manufacture of articles having a member responsive to electrical stimuli, e.g. changes transmission, and/or is heated, as current passes through the member includes a pair of spaced bus bars adhesively secured to a major surface of a plastic sheet in a spaced relationship to one another. Each of the bus bars includes, among other things, an end portion having a protective sleeve and an air barrier to prevent air from moving between the inner surfaces of the protective sleeve and the underlying surface of the end portion of the bus bar. A method of making the composite laminate is also disclosed.Type: GrantFiled: September 1, 2004Date of Patent: October 11, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Bruce A. Bartrug, Allen R. Hawk, Robert N. Pinchok, James H. Schwartz
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Patent number: 6949289Abstract: The present invention provides an at least partially coated fiber strand comprising a plurality of glass fibers having a coating composition on at least a portion of at least one of the glass fibers, the coating composition comprising at least one coating comprising greater than 20 weight percent on a total solids basis of a plurality of particles selected from inorganic particles, organic hollow particles, composite particles, and mixtures of any of the foregoing, wherein the plurality of particles have a Mohs' hardness value which does not exceed the Mohs' hardness value of the glass fibers.Type: GrantFiled: November 3, 2000Date of Patent: September 27, 2005Assignee: PPG Industries ohio, Inc.Inventors: Ernest L. Lawton, Vedagiri Velpari, William B. Rice, Walter J. Robertson, Bruce E. Novich, Xiang Wu, Kami Lammon-Hilinski
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Patent number: 6924919Abstract: An electrochromic device includes a first substrate having at least one polymeric surface; a primer layer along the polymeric surface; a first electrically conductive transparent coating along the primer of the first substrate, wherein the primer layer adheres the first electrically conductive coating to the polymeric surface of the first substrate; a second substrate spaced apart from the first substrate to define a chamber therebetween; a second electrically conductive transparent coating on a surface of the second substrate such that the first coating is in facing relation to the second coating, wherein at least one of the first and second substrates is transparent; and an electrochromic medium contained in the chamber, the electrochromic medium having reduced luminous transmittance upon application of electrical power to the first and second conductive coatings and establishing an electrical potential through the electrochromic medium, and wherein the electrochromic medium and the primer layer are compatiType: GrantFiled: October 16, 2001Date of Patent: August 2, 2005Assignee: PPG Industries Ohio, Inc.Inventors: Robert M. Hunia, Thomas G. Rukavina, Chia-Cheng Lin
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Patent number: 6899946Abstract: A restraint for packaging glass sheets includes a first leg and a second leg, each leg having an inner surface configured to contact at least a portion of the glass sheets and an outer surface. The first and second legs define a vertex. The inner surfaces are made at least partly of a compressible material and the outer surfaces are made at least partly of a material having a hardness greater than that of the compressible material.Type: GrantFiled: September 19, 2001Date of Patent: May 31, 2005Assignee: PPG Industries Ohio, Inc.Inventors: James R. Geary, George L. Noey
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Patent number: 6891517Abstract: An electrically conductive coating of an automotive heatable windshield has a communication window having an enhanced frequency selective surface having arranged passing areas (uncoated areas) and blocking areas (coated areas) to pass and block, respectively, predetermined wavelengths of the electromagnetic spectrum. In one nonlimiting embodiment, the frequency selective surface includes a pattern having a first plurality of arcuate break lines on one side of a dividing break line and a second plurality of arcuate break lines on the other side of the dividing break line. An elongated continuous blocking area is between adjacent break lines. The arcuate break lines of a group are nested within one another with the arcuate break line having the largest radius of curvature adjacent the dividing break line. The break lines each have alternating blocking and passing areas.Type: GrantFiled: April 8, 2003Date of Patent: May 10, 2005Assignee: PPG Industries ohio, Inc.Inventor: Charles S. Voeltzel
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Patent number: 6886297Abstract: An insulating unitless window sash includes a sash frame made of four linear sash members having their mitered edges joined together. Each of the sash members in cross section includes a peripheral surface, a first and outer side walls and a first groove spaced from a second groove. Each of the grooves has a base and spaced walls. The base of the first groove is spaced a greater distance from the peripheral surface than the base of the second groove. Peripheral and marginal edges of a first sheet are in the first groove and peripheral and marginal edges of a second sheet are in the second groove. A shim is mounted on the sash frame adjacent the outer surface of the first sheet to give a balance configuration.Type: GrantFiled: July 23, 1998Date of Patent: May 3, 2005Assignee: PPG Industries Ohio, Inc.Inventor: Stephen L. Crandell
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Patent number: 6881472Abstract: An automotive transparency includes a first glass ply having a constant thickness, a second glass ply having a constant thickness, and an interlayer having a constant thickness in a first predetermined area and a decreasing thickness in a second predetermined area. The first and second plies are secured together by the interlayer to form a laminate having a first outer major surface, an opposing second outer major surface, a first predetermined area defined by the first predetermined area of the interlayer over which the outer major surfaces are substantially parallel to one another, and a second predetermined area defined by the second predetermined area of the interlayer over which the outer major surfaces are nonparallel to each other such that images reflected off the nonparallel surfaces of the laminate are substantially superimposed over each other to at least reduce double imaging of the reflected image.Type: GrantFiled: October 20, 2003Date of Patent: April 19, 2005Assignee: PPG Industries Ohio, Inc.Inventor: Glenn E. Freeman