Resumes
Resumes
Vedagiri Velpari Phones & Addresses
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230 Old Haymaker Rd, Monroeville, PA 15146 (412) 372-0657 (412) 372-4315
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Pittsburgh, PA
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Pullman, WA
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230 Old Haymaker Rd, Monroeville, PA 15146 (412) 372-4315
Work
Position:
Clerical/White Collar
Education
Degree:
High school graduate or higher
Publications
Us Patents
Use Of E-Glass Fibers To Reduce Plastic Shrinkage Cracks In Concrete
View pageUS Patent:
6582511, Jun 24, 2003
Filed:
Nov 26, 2001
Appl. No.:
09/979861
Inventors:
Vedagiri Velpari - Monroeville PA
Assignee:
PPG Industries Ohio, Inc. - Cleveland OH
International Classification:
C04B 1438
US Classification:
106711
Abstract:
The present invention provides concrete having improved plastic shrinkage crack resistance, comprising: concrete; and non-alkaline resistant glass fibers. The present invention also provides a method of reducing plastic shrinkage cracks in concrete, comprising the steps of: combining cement, aggregate, sand, and water to form concrete; adding a desired amount of non-alkaline resistant glass fibers to the concrete; and mixing the concrete and glass fibers to disperse the glass fibers uniformly throughout the concrete, wherein the glass fibers reduce the amount of plastic shrinkage cracks of the concrete as compared to non-fiber reinforced concrete.
Impregnated Glass Fiber Strands And Products Including The Same
View pageUS Patent:
6593255, Jul 15, 2003
Filed:
Nov 3, 2000
Appl. No.:
09/705353
Inventors:
Ernest L. Lawton - Clemmons NC
Vedagiri Velpari - Monroeville PA
William B. Rice - Clemmons NC
Walter J. Robertson - Pittsburgh PA
Bruce E. Novich - Barrington RI
Xiang Wu - Littleton CO
Kami Lammon-Hilinski - Pittsburgh PA
Vedagiri Velpari - Monroeville PA
William B. Rice - Clemmons NC
Walter J. Robertson - Pittsburgh PA
Bruce E. Novich - Barrington RI
Xiang Wu - Littleton CO
Kami Lammon-Hilinski - Pittsburgh PA
Assignee:
PPG Industries Ohio, Inc. - Cleveland OH
International Classification:
B32B 900
US Classification:
442 59, 442187, 428372, 428375, 428378, 428392
Abstract:
A fabric comprising at least one fiber strand comprising a plurality of fibers and having a resin compatible coating composition on at least a surface of the at least one fiber strand, wherein the at least one fiber strand has an Air Jet Transport Drag Force value of greater than 100,000 gram force per gram mass of strand as determined by a needle air jet nozzle unit having an internal air jet chamber having a diameter of 2 millimeters and a nozzle exit tube having a length of 20 centimeters at a strand feed rate of 274 meters per minute and an air pressure of 310 kiloPascals. A reinforced laminate comprising: (a) at least one matrix material; and (b) at least one fabric comprising at least one fiber strand comprising a plurality of fibers and having a resin compatible coating composition on at least a surface of the at least one fiber strand, wherein the at least one fiber strand has an Air Jet Transport Drag Force value of greater than 100,000 gram force per gram mass of strand as determined by a needle air jet nozzle unit having an internal air jet chamber having a diameter of 0. 2 millimeters and a nozzle exit tube having a length of 20 centimeters at a strand feed rate of 274 meters per minute and an air pressure of 310 kiloPascals.
Non-Heat Cleaned Fabrics And Products Including The Same
View pageUS Patent:
6809046, Oct 26, 2004
Filed:
Feb 28, 2001
Appl. No.:
09/795622
Inventors:
Vedagiri Velpari - Monroeville PA
Ernest L. Lawton - Clemmons NC
William B. Rice - Clemmons NC
Walter J. Robertson - Pittsburgh PA
Kami Lammon-Hilinski - Pittsburgh PA
Bruce E. Novich - Barrington RI
Xiang Wu - Littleton CO
Ernest L. Lawton - Clemmons NC
William B. Rice - Clemmons NC
Walter J. Robertson - Pittsburgh PA
Kami Lammon-Hilinski - Pittsburgh PA
Bruce E. Novich - Barrington RI
Xiang Wu - Littleton CO
Assignee:
PPG Industries Ohio, Inc. - Cleveland OH
International Classification:
D03D 1500
US Classification:
442187, 442203, 442218, 442219, 139383 R, 139420 C
Abstract:
The present invention provides non-heat cleaned glass fiber fabrics comprising resin compatible coatings that offer higher tensile strengths than corresponding fabrics that have been heat cleaned and silane finished. These fabrics can be used in a wide variety of applications, such as reinforcements for composites such as printed circuit boards. In one nonlimiting embodiment, the invention provides a non-heat cleaned fabric comprising a plurality of fiber strands in a warp direction and a fill direction, each fiber strand comprising a plurality of E-glass fiber, and having a resin compatible coating composition on at least a portion of a surface of at least one fiber strand, wherein the fabric has a tensile strength of at least 267 Newtons when measured in the warp direction or fill direction. Although not required, the fabric also has a tensile strength of at least 1. 5 times that of a corresponding fabric that is heat cleaned by heating the corresponding fabric to a temperature of at least 380Â C.
Impregnated Glass Fiber Strands And Products Including The Same
View pageUS Patent:
6949289, Sep 27, 2005
Filed:
Nov 3, 2000
Appl. No.:
09/705575
Inventors:
Ernest L. Lawton - Clemmons NC, US
Vedagiri Velpari - Monroeville PA, US
William B. Rice - Clemmons NC, US
Walter J. Robertson - Pittsburgh PA, US
Bruce E. Novich - Barrington RI, US
Xiang Wu - Littleton CO, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Vedagiri Velpari - Monroeville PA, US
William B. Rice - Clemmons NC, US
Walter J. Robertson - Pittsburgh PA, US
Bruce E. Novich - Barrington RI, US
Xiang Wu - Littleton CO, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Assignee:
PPG Industries ohio, Inc. - Cleveland OH
International Classification:
D02G015/00
US Classification:
428372, 428375, 428378, 428392
Abstract:
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.
Glass Fiber Coating For Inhibiting Conductive Anodic Filament Formation In Electronic Supports
View pageUS Patent:
20020058140, May 16, 2002
Filed:
Feb 15, 2001
Appl. No.:
09/783539
Inventors:
David Dana - Pittsburgh PA, US
Langqiu Xu - Sewickley PA, US
Ernest Lawton - Clemmons NC, US
Vedagiri Velpari - Monroeville PA, US
Walter Robertson - Pittsburgh PA, US
William Rice - Clemmons NC, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Xiang Wu - Littleton CO, US
Bruce Novich - Barrington RI, US
Langqiu Xu - Sewickley PA, US
Ernest Lawton - Clemmons NC, US
Vedagiri Velpari - Monroeville PA, US
Walter Robertson - Pittsburgh PA, US
William Rice - Clemmons NC, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Xiang Wu - Littleton CO, US
Bruce Novich - Barrington RI, US
International Classification:
B32B003/00
D02G003/00
D02G003/00
US Classification:
428/375000, 428/313300
Abstract:
The present invention provides an at least partially coated fiber strand comprising a plurality of fibers having a resin compatible coating composition on at least a portion of a surface of at least one of the fibers, the resin compatible coating composition comprising: (a) a plurality of discrete particles comprising a silicate having a high affinity for metal ions; and (b) at least one film-forming material.
Articles Having Defined Surface Profiles Formed From Fabrics Comprising Resin Compatible Yarn
View pageUS Patent:
20020058449, May 16, 2002
Filed:
Feb 28, 2001
Appl. No.:
09/793911
Inventors:
Vedagiri Velpari - Monroeville PA, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Ernest Lawton - Clemmons NC, US
Bruce Novich - Barrington RI, US
William Rice - Clemmons NC, US
Walter Robertson - Pittsburgh PA, US
Xiang Wu - Littleton CO, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Ernest Lawton - Clemmons NC, US
Bruce Novich - Barrington RI, US
William Rice - Clemmons NC, US
Walter Robertson - Pittsburgh PA, US
Xiang Wu - Littleton CO, US
International Classification:
B32B005/02
B32B027/04
B32B027/12
B32B027/04
B32B027/12
US Classification:
442/059000, 442/097000, 442/108000, 442/181000
Abstract:
At least partially clad laminates comprising: (a) a cladding material; (b) a matrix material; and (c) at least one non-degreased fabric comprising at least one strand comprising a plurality of fibers, wherein at least a portion of the at least one non-degreased fabric comprises a coating which is compatible with the matrix material, and wherein at least a portion of the at least partially clad laminate has a roughness factor less than 8 microns using a one ounce clad, measured in either the warp direction or the fill direction of the at least one non-degreased. Electronic supports and electronic circuit boards comprising at least one at least partially clad laminate.
Electronic Supports And Methods And Apparatus For Forming Apertures In Electronic Supports
View pageUS Patent:
20020085888, Jul 4, 2002
Filed:
Feb 15, 2001
Appl. No.:
09/783540
Inventors:
Vedagiri Velpari - Monroeville PA, US
Charles Greenberg - Murrysville PA, US
Bruce Novich - Barrington RI, US
Charles Greenberg - Murrysville PA, US
Bruce Novich - Barrington RI, US
International Classification:
B23B035/00
US Classification:
408/00100R, 408/056000, 408/059000
Abstract:
The present invention provides a method of forming an aperture in an electronic support, comprising: (A) positioning an electronic support in registry with an aperture forming device; and (B) forming an aperture at least partially through the electronic support with the aperture forming device while dispensing a fluid stream comprising at least one solid lubricant, proximate the aperture forming device during at least a position of the forming, such that the at least one solid lubricant contacts at least a portion of an interface between the aperture forming device and the electronic support.
Fabrics Comprising Resin Compatible Yarn With Defined Shape Factor
View pageUS Patent:
20020086598, Jul 4, 2002
Filed:
Feb 28, 2001
Appl. No.:
09/793900
Inventors:
Vedagiri Velpari - Monroeville PA, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Ernest Lawton - Clemmons NC, US
Bruce Novich - Barrington RI, US
William Rice - Clemmons NC, US
Walter Robertson - Pittsburgh PA, US
Xiang Wu - Littleton CO, US
Kami Lammon-Hilinski - Pittsburgh PA, US
Ernest Lawton - Clemmons NC, US
Bruce Novich - Barrington RI, US
William Rice - Clemmons NC, US
Walter Robertson - Pittsburgh PA, US
Xiang Wu - Littleton CO, US
International Classification:
B32B005/02
B32B027/20
D03D015/00
B32B027/20
D03D015/00
US Classification:
442/074000, 442/417000, 442/064000, 442/180000, 442/199000
Abstract:
Prepregs for an electronic support comprising: (a) a matrix material; and (b) at least one non-degreased fabric comprising at least one strand comprising a plurality of fibers, wherein at least a portion of the fabric comprises a coating which is compatible with the matrix material, and wherein the at least one strand has a shape factor of greater than 1, measured in the warp direction or the fill direction of the at least one non-degreased fabric. Laminates for an electronic support comprising: (a) a matrix material; and (b) at least one non-degreased fabric comprising at least one strand comprising a plurality of fibers, wherein at least a portion of the fabric comprises a coating which is compatible with the matrix material, and wherein the at least one strand has a shape factor of greater than 1, measured in the warp direction or the fill direction of the at least one non-degreased fabric. Electronic supports and electronic circuit boards comprising at least one prepreg or at least one laminate.