The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1989
Filed:
Mar. 18, 1988
Thomas H Jensen, Murrysville, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
A method and apparatus for controlling a glass fiber forming environment is disclosed. A fin cooler having a plurality of hollow cooling fins, each provided with a coolant liquid flow passage and further having a header block provided with separate coolant liquid inflow and outflow channels, is placed in a closed loop coolant liquid circulation network. Water may be employed as the coolant, but preferably a heat transfer liquid having a boiling point higher than water, low vapor pressure, and a high specific heat value, is used as the coolant liquid. The heat transfer liquid takes on heat from the glass fibers as it passes through the cooling fins, and gives up this heat in a heat exchanger which may use plant process water or forced air as the secondary heat transfer medium. By regulating fluid flow, fin temperature can be manipulated to improve process control and product uniformity. The cooling fins operate at a temperature high enough to prevent glass volatiles form condensing on the fin surfaces and to prevent the formation of fin corroding acids. The closed loop cooling path prevents fin coolant passages occlusion or clogging.