ALOYSIUS W FARABAUGH
Engineers in Verona, PA
License number
Pennsylvania PE018913E
Category
Engineers
Type
Professional Engineer
Address
Address
Verona, PA 15147
Professional information
Manufacture Of Flat Glass Having Controlled Width And Nip Width
US Patent:
3998616, Dec 21, 1976
Filed:
Feb 3, 1975
Appl. No.:
5/546846
Inventors:
Aloysius W. Farabaugh - Verona PA
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
C03B 1802
US Classification:
65 29
Abstract:
Apparatuses for attenuating a body of hot glass moving over a body of molten metal are each provided with a nip sensing device, a linear movement monitoring device and an angular movement monitoring device. The nip sensing device includes a plurality of discrete phototransistors positioned over the glass and molten metal in a direction generally transverse to the direction of glass movement. When the selected ones of the phototransistors are not conducting, the circuit operates to appropriately energize a motor to move the attenuating apparatus with respect to the edge of the ribbon to provide a nip width within a predetermined range. The linear movement monitoring device includes a potentiometer on each opposed attenuating apparatuses giving an output which is monitored to determine the width of the ribbon. The angular movement monitoring device includes a potentiometer which yields an output which varies with the movement of the apparatus along an arcuate path relative to the edge of the ribbon. In the preferred embodiment the output of the nip sensing device, and the potentiometers of the angular and linear movement monitoring devices, are forwarded to a computer which maintains the ribbon width within a predetermined range.
Method Of And Apparatus For Determining Optical Quality Of An Article
US Patent:
4400089, Aug 23, 1983
Filed:
Jan 16, 1981
Appl. No.:
6/225541
Inventors:
Aloysius W. Farabaugh - Verona PA
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
G01N 2132, G01B 1106
US Classification:
356382
Abstract:
An interlayer material is scanned prior to laminating same with glass sheets to generate a thickness variation signal, a wedge angle signal and an optical power signal. The signals are then selectively filtered to determine the thickness variation, wedge angle and optical power of the interlayer after lamination.
Method Of Determining Optical Quality Of A Shaped Article
US Patent:
4371482, Feb 1, 1983
Filed:
Jan 16, 1981
Appl. No.:
6/225585
Inventors:
Aloysius W. Farabaugh - Verona PA
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
B29C 1702, G01N 2132
US Classification:
264 401
Abstract:
An interlayer material is scanned prior to laminating same with glass sheets to generate a thickness variation signal, a wedge angle signal and an optical power signal. The signals are then selectively filtered to determine the thickness variation, wedge angle and optical power of the interlayer after lamination.
Surface Inspection Device And Method
US Patent:
4914828, Apr 10, 1990
Filed:
Aug 9, 1988
Appl. No.:
7/230206
Inventors:
Robert J. Fiedor - Lower Burrell PA
Aloysius W. Farabaugh - Verona PA
Aloysius W. Farabaugh - Verona PA
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
G01B 734
US Classification:
33554
Abstract:
A method and apparatus for measuring surface irregularities on articles such as curved automotive glass are provided wherein two contact points on a sensor head establish a chord at a segment of the surface and a probe measures the distance of the surface from the chord between the contact points, thereby permitting calculation of the local radius of curvature as the surface is scanned.
Method Of Determining Optical Quality Of A Laminated Article
US Patent:
4285745, Aug 25, 1981
Filed:
Aug 1, 1979
Appl. No.:
6/062832
Inventors:
Aloysius W. Farabaugh - Verona PA
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
B32B 3112, B32B 1710, G01N 2132
US Classification:
156 64
Abstract:
An interlayer material is scanned prior to laminating same with glass sheets to generate a thickness variation signal, a wedge angle signal and an optical power signal. The signals are then selectively filtered to determine the thickness variation, wedge angle and optical power of the interlayer after lamination.