Patents by Inventor David Alan Tammaro
David Alan Tammaro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9771209Abstract: This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member.Type: GrantFiled: August 4, 2014Date of Patent: September 26, 2017Assignee: Corning IncorporatedInventors: Yao-Sheng Chen, Timothy Michael Gross, David Alan Tammaro, Liming Wang
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Patent number: 9707658Abstract: An edge finishing apparatus includes a surface, a fluid delivery device configured to deliver at least one magnetorheological polishing fluid (MPF) ribbon to the at least one well, at least one magnet placed adjacent to the surface to selectively apply a magnetic field in a vicinity of the surface, and at least one holder placed in opposing relation to the surface, the at least one holder being configured to support at least one article such that an edge of the at least one article can be selectively immersed in the MPF ribbon delivered to the at least one well.Type: GrantFiled: July 7, 2015Date of Patent: July 18, 2017Assignee: Corning IncorporatedInventors: Charles Michael Darcangelo, Steven Edward DeMartino, Aric Bruce Shorey, Daniel Duane Strong, David Alan Tammaro, Butchi Reddy Vaddi
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Patent number: 9561897Abstract: This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member.Type: GrantFiled: August 5, 2014Date of Patent: February 7, 2017Assignee: Corning IncorporatedInventors: Yao-Sheng Chen, Timothy Michael Gross, David Alan Tammaro, Liming Wang
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Patent number: 9278878Abstract: A method and apparatus for forming vents (13) in glass sheets (10). The method includes repetitively performing the steps of: (I) bringing a score head (21) and a platen (31) into contact with, respectively, the front (11) and rear (12) major surfaces of the glass sheet (10), (II) moving the score head (21) across the front major surface (11) along a predetermined path to form a vent (13), and (III) withdrawing the score head (21) and the platen (31) from the front (11) and rear (12) major surfaces, wherein: (i) the thickness (?) of the glass sheet is less than or equal to 500 microns, and (ii) for each repetition of steps (I) through (III), the platen (31) is cleaned after step (III) and before step (I) to remove glass chips which if left on the platen (31) could cause the score head (21) to penetrate through the thickness ?.Type: GrantFiled: February 16, 2012Date of Patent: March 8, 2016Assignee: Corning IncorporatedInventors: Douglas Edward Brackley, Frank Thomas Coppola, Monica Jo Mashewske, David Alan Tammaro
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Publication number: 20150306726Abstract: An edge finishing apparatus includes a surface, a fluid delivery device configured to deliver at least one magnetorheological polishing fluid (MPF) ribbon to the at least one well, at least one magnet placed adjacent to the surface to selectively apply a magnetic field in a vicinity of the surface, and at least one holder placed in opposing relation to the surface, the at least one holder being configured to support at least one article such that an edge of the at least one article can be selectively immersed in the MPF ribbon delivered to the at least one well.Type: ApplicationFiled: July 7, 2015Publication date: October 29, 2015Inventors: Charles Michael Darcangelo, Steven Edward DeMartino, Aric Bruce Shorey, Daniel Duane Strong, David Alan Tammaro, Butchi Reddy Vaddi
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Patent number: 9102030Abstract: An edge finishing apparatus includes a surface, a fluid delivery device configured to deliver at least one magnetorheological polishing fluid (MPF) ribbon to the at least one well, at least one magnet placed adjacent to the surface to selectively apply a magnetic field in a vicinity of the surface, and at least one holder placed in opposing relation to the surface, the at least one holder being configured to support at least one article such that an edge of the at least one article can be selectively immersed in the MPF ribbon delivered to the at least one well.Type: GrantFiled: June 27, 2011Date of Patent: August 11, 2015Assignee: Corning IncorporatedInventors: Charles Michael Darcangelo, Steven Edward DeMartino, Aric Bruce Shorey, Daniel Duane Strong, David Alan Tammaro, Butchi Reddy Vaddi
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Publication number: 20150190898Abstract: Methods of finishing an edge of a glass sheet comprise the step of machining the edge of the glass sheet into a predetermined cross-sectional profile along a plane taken transverse to the edge of the glass sheet with an initial average edge strength ESi. The methods also include the step of finishing the edge with at least one finishing member, such as an endless belt, without substantially changing a shape of the predetermined cross-sectional profile. In one example, a wet slurry including an abrasive can be applied to at least one of a finishing member and the edge of the glass sheet. After finishing the edge, example finished average edge strengths ESf can be at least about 250 MPa. In addition or alternatively, in another example, the ratio ESf/ESi can be within a range of from about 1.6 to about 5.6.Type: ApplicationFiled: March 18, 2015Publication date: July 9, 2015Inventors: Charles Michael Darcangelo, Aric Bruce Shorey, Daniel Duane Strong, David Alan Tammaro
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Patent number: 8974268Abstract: A method of preparing an edge-strengthened article comprises polishing of an edge of an article having a first edge strength using magnetorheological finishing, wherein after the polishing the article has a second edge strength and the second edge strength is greater than the first edge strength.Type: GrantFiled: May 20, 2011Date of Patent: March 10, 2015Assignee: Corning IncorporatedInventors: Charles Michael Darcangelo, Steven Edward DeMartino, Joseph Fabian Ellison, Richard A Nasca, Aric Bruce Shorey, David Alan Tammaro, John Christopher Thomas
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Publication number: 20140338820Abstract: This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member.Type: ApplicationFiled: August 4, 2014Publication date: November 20, 2014Inventors: Yao-Sheng Chen, Timothy Michael Gross, David Alan Tammaro, Liming Wang
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Publication number: 20140342123Abstract: This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member.Type: ApplicationFiled: August 5, 2014Publication date: November 20, 2014Inventors: Yao-Sheng Chen, Timothy Michael Gross, David Alan Tammaro, Liming Wang
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Patent number: 8821970Abstract: This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member.Type: GrantFiled: May 22, 2009Date of Patent: September 2, 2014Assignee: Corning IncorporatedInventors: Jonathan Chen, Timothy Michael Gross, David Alan Tammaro, Liming Wang
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Publication number: 20130133366Abstract: A method of improving strength of a chemically-strengthened glass article comprises exposing a target surface of the glass article to an ion-exchange strengthening process, the ion-exchange strengthening process generating a chemically-induced compressive layer in the glass article. Thereafter, dynamic interfacing of the target surface of the glass article with a sheared magnetorheological fluid is performed to remove at least a portion of the chemically-induced compressive layer from the glass article, wherein the parameters of the dynamic interfacing of the glass article with the sheared magnetorheological fluid are such that a thickness of the removed portion of the chemically-induced compressive layer is less than approximately 20% of the chemically-induced compressive layer.Type: ApplicationFiled: October 30, 2012Publication date: May 30, 2013Inventors: Gregory Scott Glaesemann, Aric Bruce Shorey, Daniel Duane Strong, David Alan Tammaro
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Publication number: 20120210842Abstract: A method and apparatus for forming vents (13) in glass sheets (10). The method includes repetitively performing the steps of: (I) bringing a score head (21) and a platen (31) into contact with, respectively, the front (11) and rear (12) major surfaces of the glass sheet (10), (II) moving the score head (21) across the front major surface (11) along a predetermined path to form a vent (13), and (III) withdrawing the score head (21) and the platen (31) from the front (11) and rear (12) major surfaces, wherein: (i) the thickness (?) of the glass sheet is less than or equal to 500 microns, and (ii) for each repetition of steps (I) through (III), the platen (31) is cleaned after step (III) and before step (I) to remove glass chips which if left on the platen (31) could cause the score head (21) to penetrate through the thickness ?.Type: ApplicationFiled: February 16, 2012Publication date: August 23, 2012Inventors: Douglas Edward Brackley, Frank Thomas Coppola, Monica Jo Mashewske, David Alan Tammaro
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Publication number: 20120009854Abstract: An edge finishing apparatus includes a surface, a fluid delivery device configured to deliver at least one magnetorheological polishing fluid (MPF) ribbon to the at least one well, at least one magnet placed adjacent to the surface to selectively apply a magnetic field in a vicinity of the surface, and at least one holder placed in opposing relation to the surface, the at least one holder being configured to support at least one article such that an edge of the at least one article can be selectively immersed in the MPF ribbon delivered to the at least one well.Type: ApplicationFiled: June 27, 2011Publication date: January 12, 2012Inventors: Charles Michael Darcangelo, Steven Edward DeMartino, Aric Bruce Shorey, Daniel Duane Strong, David Alan Tammaro, Butchi Reddy Vaddi
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Publication number: 20110318994Abstract: A method of preparing an edge-strengthened article comprises polishing of an edge of an article having a first edge strength using magnetorheological finishing, wherein after the polishing the article has a second edge strength and the second edge strength is greater than the first edge strength.Type: ApplicationFiled: May 20, 2011Publication date: December 29, 2011Inventors: Charles Michael Darcangelo, Steven Edward DeMartino, Joseph Fabian Ellison, Richard A. Nasca, Aric Bruce Shorey, David Alan Tammaro, John Christopher Thomas
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Publication number: 20100297392Abstract: This disclosure features use of a paper or polymer film that includes a slip agent that can transfer to its surfaces. Once the paper or film is pressed against a glass sheet, this will leave a thin surface roughness of slip agent that can prevent or reduce glass surface scratches from other surfaces or particles during shipping or finishing (e.g., cutting to size, conveyance of glass), thereby improving the yield of glass shipments between glass forming plants and customers. The thin discontinuous layer of slip agent remaining on the glass surface can be washed off easily in subsequent washing processes. The paper or film can have the slip agent imbibed within the paper or coated on it as a surface member.Type: ApplicationFiled: May 22, 2009Publication date: November 25, 2010Inventors: Jonathan Chen, Timothy Michael Gross, David Alan Tammaro, Liming Wang
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Patent number: 7717254Abstract: A glass sheet guidance system includes a guidance member (22) having a small contact area with the glass sheet (12) and being taut to provide guidance to the glass sheet. In order to provide consistent guidance, even in environments where there is a large change in temperature, the guidance member is held taut by a tension member (24). The guidance member is supported by holders (10) so that, while remaining taut, the guidance member can be moved in three dimensions so as to accommodate glass sheets having different widths (1), heights (2), and thicknesses (3). Also, there is provided a method of guiding glass sheets with the guidance system.Type: GrantFiled: May 29, 2008Date of Patent: May 18, 2010Assignee: Corning IncorporatedInventors: Douglas Edward Brackley, James William Brown, Frank Thomas Coppola, David Alan Tammaro
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Publication number: 20090308774Abstract: Described herein are methods for protecting glass with the use of glassine paper.Type: ApplicationFiled: June 26, 2007Publication date: December 17, 2009Applicant: Corning IncorporatedInventors: Hongkyu Kim, Ronald Walter Mason, Himanshu Chandrakant Shah, David Alan Tammaro
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Publication number: 20090297318Abstract: A glass sheet guidance system includes a guidance member (22) having a small contact area with the glass sheet (12) and being taut to provide guidance to the glass sheet. In order to provide consistent guidance, even in environments where there is a large change in temperature, the guidance member is held taut by a tension member (24). The guidance member is supported by holders (10) so that, while remaining taut, the guidance member can be moved in three dimensions so as to accommodate glass sheets having different widths (1), heights (2), and thicknesses (3). Also, there is provided a method of guiding glass sheets with the guidance system.Type: ApplicationFiled: May 29, 2008Publication date: December 3, 2009Inventors: Douglas Edward Brackley, James William Brown, Frank Thomas Coppola, David Alan Tammaro
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Publication number: 20090258187Abstract: The invention is directed to a method of protecting a glass surface during transportation and/or process using an aqueous solution of an acrylic material to protectively coat the surface of the glass sheet. The acrylic protective coating may be applied by dipping, roller applying or spraying the coating on the glass. The coating is then cured, dried or baked in an oven. Subsequently, the glass sheet may be scored and separated into individual glass article blanks for further processing; for example, edge grinding to produce smooth edges and drilling/milling to produce openings such as holes in the surface of the glass. When processing of the glass article is completed, the protective coating can be removed or the article can be shipped to the end used who can remove the coating using an aqueous solution of pH?12 to remove the coating.Type: ApplicationFiled: April 6, 2009Publication date: October 15, 2009Inventors: Michael Donavon Brady, Mike Xu Ouyang, Yale Pan, Robert Sabia, Yawei Sun, David Alan Tammaro, Qing Ya Wang