Abstract: Fiberizing bushings for fiberizing molten materials including molten glass are heated by applying a voltage drop across the bushings wherein molten material flows through an array of hollow tips attached to, or integral with, a tip plate having orifices therein that generally align with channels through the hollow tips to form fibers. The uniformity of the diameter of the fibers produced is much improved by using tips of different lengths and/or tips having channels of differing ID's to compensate for unequal electrical heating and/or cooling effects of drawn-in ambient air that cools the tips on the extreme outer periphery and/or cooling or heating effects of external supports or cooling members running through the array of tips that cools or heats adjacent tips more than the interior tips.
Type:
Grant
Filed:
April 10, 2007
Date of Patent:
August 30, 2011
Assignee:
Johns Manville
Inventors:
ChangQing Shen, Alessandro G. Borsa, Terry Hanna
Abstract: Fiberizing bushings for fiberizing molten materials including molten glass are heated by applying a voltage drop across the bushings wherein molten material flows through an array of hollow tips attached to, or integral with, a tip plate having orifices therein that generally align with channels through the hollow tips to form fibers. The uniformity of the diameter of the fibers produced is much improved by using tips of different lengths and/or tips having channels of differing ID's to compensate for unequal electrical heating and/or cooling effects of drawn-in ambient air that cools the tips on the extreme outer periphery and/or cooling or heating effects of external supports or cooling members running through the array of tips that cools or heats adjacent tips more than the interior tips.
Type:
Application
Filed:
April 10, 2007
Publication date:
October 16, 2008
Inventors:
ChangQing Shen, Alessandro G. Borsa, Terry Hanna
Abstract: An electrical connection device for supplying power to a bushing that delivers filaments, especially glass filaments. The device includes a connection jaw clamp and an electrical connection piece with no protective sheath and including a flexible body, having one end that is connected to the jaw clamp and a free opposite end.
Type:
Grant
Filed:
January 15, 2004
Date of Patent:
June 19, 2007
Assignee:
Saint-Gobain Vetrotex France S.A.
Inventors:
Jean-Pierre Renaudin, Bertrand Flin, Jean-Louis Thiriet, Jean-Francois Vincent