David Lee Singleton

US Patent:

6345485, Feb 12, 2002

Filed:

Feb 7, 2000

Appl. No.:

09/499145

Inventors:

Bradley P. Boone - Pittsburgh PA
Stephen L. Crandell - Cranberry Township PA
Jack B. McCandless - Natrona Heights PA
David E. Singleton - Natrona Heights PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

E04C 254

US Classification:

5278613, 52456, 527861, 5278611, 526569, 526568, 526565, 5220461

Abstract:

A multi-sheet glazing unit includes a closed spacer frame, the spacer frame has one side having a pair of legs joined to a base to provide the spacer frame with a U-shaped cross-section. An inner sheet has an edge mounted in an edge receiving member mounted between the legs of the U-shaped side of the spacer frame. The remaining edges of the inner sheet are within the interior of the closed spacer frame and spaced from the spacer frame. The inner sheet is held within the spacer frame by sheet retaining members mounted to the spacer frame. A sheet e. g. glass sheet is secured by a moisture-impervious adhesive to outer surface of each of the legs of the spacer frame. One type of sheet retaining members has a horizontal member and a vertical member, and a locking member. The locking member is mounted on the horizontal member spaced from the vertical member to form a groove to hold the inner sheet within the closed interior of the spacer frame. Another type of the sheet retaining member includes a pair of flexible fingers mounted on a platform member, angled away from the platform member toward one another and having their ends spaced from one another to provide a groove to hold the inner sheet within the closed interior of the spacer frame.

US Patent:

6413581, Jul 2, 2002

Filed:

Apr 1, 1999

Appl. No.:

09/282943

Inventors:

Charles B. Greenberg - Murrysville PA
Caroline S. Harris - Pittsburgh PA
Vincent Korthuis - Plano TX
Luke A. Kutilek - Oakmont PA
David E. Singleton - Natrona Heights PA
Janos Szanyi - Oakmont PA
James P. Thiel - Pittsburgh PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

C23C 1640

US Classification:

427226, 4272555, 4272557, 4273741, 427424, 427427, 65 605, 65 6051, 65 6052, 20419212, 20419215, 20419226, 20419227

Abstract:

A method and article are disclosed wherein a substrate is provided with a photocatalytically-activated self-cleaning surface by forming a photocatalytically-activated self-cleaning coating on the substrate by spray pyrolysis chemical vapor deposition or magnetron sputter vacuum deposition. The coating has a thickness of at least about 500 Angstroms to limit sodium-ion poisoning to a portion of the coating facing the substrate. Alternatively, a sodium ion diffusion barrier layer is deposited over the substrate prior to the deposition of the photocatalytically-activated self-cleaning coating to prevent sodium ion poisoning of the photocatalytically-activated self-cleaning coating. The substrate includes glass substrates, including glass sheet and continuous float glass ribbon.

US Patent:

6477812, Nov 12, 2002

Filed:

Nov 21, 2001

Appl. No.:

09/990727

Inventors:

Bradley P. Boone - Pittsburgh PA
Stephen L. Crandell - Cranberry Township PA
Jack B. McCandless - Natrona Heights PA
David E. Singleton - Natrona Heights PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

E06B 712

US Classification:

52172, 52204591, 5220451, 52204593, 52204595, 5278613, 5280014

Abstract:

A multi-sheet glazing unit includes a closed spacer frame, the spacer frame has one side having a pair of legs joined to a base to provide the spacer frame with a U-shaped cross-section. An inner sheet has an edge mounted in an edge receiving member mounted between the legs of the U-shaped side of the spacer frame. The remaining edges of the inner sheet are within the interior of the closed spacer frame and spaced from the spacer frame. The inner sheet is held within the spacer frame by sheet retaining members mounted to the spacer frame. A sheet e. g. glass sheet is secured by a moisture-impervious adhesive to outer surface of each of the legs of the spacer frame. One type of sheet retaining members has a horizontal member and a vertical member, and a locking member. The locking member is mounted on the horizontal member spaced from the vertical member to form a groove to hold the inner sheet within the closed interior of the spacer frame. Another type of the sheet retaining member includes a pair of flexible fingers mounted on a platform member, angled away from the platform member toward one another and having their ends spaced from one another to provide a groove to hold the inner sheet within the closed interior of the spacer frame.

US Patent:

6715244, Apr 6, 2004

Filed:

Oct 22, 2002

Appl. No.:

10/277690

Inventors:

Bradley P. Boone - Pittsburgh PA
Stephen L. Crandell - Cranberry Township PA
Jack B. McCandless - Natrona Heights PA
David E. Singleton - Natrona Heights PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

E06B 700

US Classification:

52204591, 52204593, 52204595, 5278613, 5280014

Abstract:

A multi-sheet glazing unit includes a closed spacer frame, the spacer frame has one side having a pair of legs joined to a base to provide the spacer frame with a U-shaped cross-section. An inner sheet has an edge mounted in an edge receiving member mounted between the legs of the U-shaped side of the spacer frame. The remaining edges of the inner sheet are within the interior of the closed spacer frame and spaced from the spacer frame. The inner sheet is held within the spacer frame by sheet retaining members mounted to the spacer frame. A sheet e. g. glass sheet is secured by a moisture-impervious adhesive to outer surface of each of the legs of the spacer frame. One type of sheet retaining members has a horizontal member and a vertical member, and a locking member. The locking member is mounted on the horizontal member spaced from the vertical member to form a groove to hold the inner sheet within the closed interior of the spacer frame. Another type of the sheet retaining member includes a pair of flexible fingers mounted on a platform member, angled away from the platform member toward one another and having their ends spaced from one another to provide a groove to hold the inner sheet within the closed interior of the spacer frame.

US Patent:

6722159, Apr 20, 2004

Filed:

Feb 14, 2002

Appl. No.:

10/075316

Inventors:

Charles B. Greenberg - Murrysville PA
Caroline S. Harris - Pittsburgh PA
Vincent Korthuis - Plano TX
Luke A. Kutilek - Oakmont PA
David E. Singleton - Natrona Heights PA
Janos Szanyi - Oakmont PA
James P. Thiel - Pittsburgh PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

C03C 17245

US Classification:

65 602, 65 605, 65 6052, 65 324, 65 994

Abstract:

A method and article are disclosed wherein a substrate is provided with a photocatalytically-activated self-cleaning surface by forming a photocatalytically-activated self-cleaning coating on the substrate by spray pyrolysis chemical vapor deposition or magnetron sputter vacuum deposition. The coating has a thickness of at least about 500 Angstroms to limit sodium-ion poisoning to a portion of the coating facing the substrate. Alternatively, a sodium ion diffusion barrier layer is deposited over the substrate prior to the deposition of the photocatalytically-activated self-cleaning coating to prevent sodium ion poisoning of the photocatalytically-activated self-cleaning coating. The substrate includes glass substrates, including glass sheet and continuous float glass ribbon.

US Patent:

7049002, May 23, 2006

Filed:

Jun 27, 2003

Appl. No.:

10/608486

Inventors:

Charles B. Greenberg - Murrysville PA, US
Caroline S. Harris - Pittsburgh PA, US
Vincent Korthuis - Plano TX, US
Luke A. Kutilek - Oakmont PA, US
David E. Singleton - Natrona Heights PA, US
Janos Szanyi - Oakmont PA, US
James P. Thiel - Pittsburgh PA, US

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

B32B 17/06

US Classification:

428432, 428336, 428428, 428701, 428702, 428448

Abstract:

A method and article are disclosed wherein a substrate is provided with a photocatalytically-activated self-cleaning surface by forming a photocatalytically-activated self-cleaning coating on the substrate by spray pyrolysis chemical vapor deposition or magnetron sputter vacuum deposition. The coating has a thickness of at least about 500 Angstroms to limit sodium-ion poisoning to a portion of the coating facing the substrate. Alternatively, a sodium ion diffusion barrier layer is deposited over the substrate prior to the deposition of the photocatalytically-activated self-cleaning coating to prevent sodium ion poisoning of the photocatalytically-activated self-cleaning coating. The substrate includes glass substrates, including glass sheet and continuous float glass ribbon.

US Patent:

47688653, Sep 6, 1988

Filed:

Jun 10, 1987

Appl. No.:

7/060543

Inventors:

Charles B. Greenberg - Murrysville PA
David E. Singleton - Natrona Heights PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

G02F 101

US Classification:

350357

Abstract:

An electrochromic transparency comprising an electrochromic film and an ion-conductive layer disposed between a pair of electrodes is disclosed wherein the optical properties and electrochromic efficiency are improved by means of a metal grid electrode.

US Patent:

51248328, Jun 23, 1992

Filed:

Sep 29, 1989

Appl. No.:

7/415001

Inventors:

Charles B. Greenberg - Murrysville PA
Thomas G. Rukavina - Lower Burrell PA
David E. Singleton - Natrona Heights PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

G02F 101

US Classification:

359269

Abstract:

An electrochromic transparency comprising an electrochromic film and a preformed, preconditioned ion-conductive polymer sheet laminated between a pair of electrode bearing cell members is disclosed wherein the optimum moisture content of the ion-conducting polymer sheet is maintained by means of a moisture vapor barrier surrounding the perimeter of the cell.