JOHN R FERRETTI
Vehicle Board in North Huntingdon, PA
License number
Pennsylvania MV016997L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
North Huntingdon, PA 15642
Professional information
Vacuum Channel Method Of Laminating Glass Sheets
US Patent:
4398979, Aug 16, 1983
Filed:
Feb 22, 1982
Appl. No.:
6/350892
Inventors:
William P. Cathers - Allison Park PA
John S. Ferretti - North Huntingdon PA
John S. Ferretti - North Huntingdon PA
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
B32B 3100
US Classification:
156 87
Abstract:
This invention involves a method of using deairing rings comprising flexible channel members of a novel construction around the periphery of an assembly of glass and flexible plastic sheets during its lamination and the construction of said novel deairing rings. The deairing rings are readily applied to and removed from the assemblies to be laminated and are so constructed as to facilitate the lamination of large windows, particularly those having sharp corners.