Donald L Mackey

US Patent:

6467232, Oct 22, 2002

Filed:

Dec 11, 1997

Appl. No.:

08/989336

Inventors:

Donald A. Mackey - Bairdford PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

B29C 4514

US Classification:

527165, 52716, 264252, 264261, 264275, 264277, 296 93

Abstract:

A fixture for and method of positioning an edge member on a sheet. The fixture includes a base, an arrangement to locate a sheet is provided to be supported on the fixture at a predetermined position relative to a plurality of datum points; and an arrangement to position an edge member to be secured along a peripheral edge of the sheet at a desired position relative to the datum points. In one particular embodiment of the invention, a plurality of alignment stops are positioned to contact selected peripheral edges of the sheet while the sheet is supported on support posts to position and orient the window at a predetermined position relative to the datum points.

US Patent:

6675541, Jan 13, 2004

Filed:

Aug 15, 2002

Appl. No.:

10/219847

Inventors:

Donald A. Mackey - Bairdford PA

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

B25B 120

US Classification:

52208, 522041, 269 40

Abstract:

A fixture for and method of positioning an edge member on a sheet is provided. The fixture includes a base, an arrangement to locate a sheet to be supported on the fixture at a predetermined position relative to a plurality of datum points; and an arrangement to position an edge member to be secured along a peripheral edge of the sheet at a desired position relative to the datum points. In one particular embodiment of the invention, a plurality of alignment stops are positioned to contact selected peripheral edges of the sheet while the sheet is supported on support posts to position and orient the window at a predetermined position relative to the datum points.

US Patent:

50403427, Aug 20, 1991

Filed:

Oct 11, 1988

Appl. No.:

7/255242

Inventors:

Kenneth J. McGuire - Sarver PA
Dennis J. Korber - Arnold PA
Donald P. Michelotti - Rochester Hills MI
Gary V. Cannon - Wexford PA
Donald A. Mackey - Pittsburgh PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

B24B 700
B24B 900

US Classification:

51283E

Abstract:

The glass sheet processing apparatus includes a sheet support stand which rotates the glass about a vertical axis and cutting and edging tools that move along linear axes generally perpendicular to the vertical axis. As the glass is rotated, the cutting tool moves towards and away the support stand to score the desired outline configuration of the glass part. The undesired trim portion of the glass is then removed. The glass sheet is then rotated and the edging tool is moved towards and away from the support stand to grind the periphery of the glass part to its final finished edge.

US Patent:

50386549, Aug 13, 1991

Filed:

Apr 4, 1989

Appl. No.:

7/333143

Inventors:

Donald A. Mackey - Pittsburgh PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

B26D 308

US Classification:

83880

Abstract:

The load applied to a scoring wheel to the combined load of a first predetermined constant load and a second variable load. The second load is varied in response to changes in the scoring speed to provide a uniform scoring depth.

US Patent:

50626213, Nov 5, 1991

Filed:

Dec 5, 1988

Appl. No.:

7/279695

Inventors:

Donald A. Mackey - Pittsburgh PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

B23Q 300

US Classification:

269305

Abstract:

An alignment device is provided with stop members that are rotatably supported on a block member in a manner such that said stop members contact the edge of the sheet along the axis about which the stop members rotate.