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:
Sep. 07, 1999
Filed:
May. 12, 1998
Applicant:
Inventors:
Reed H Grundy, Murrysville, PA (US);
James W Koewing, Murrysville, PA (US);
Assignee:
PPG Industries Ohio, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65495 ;
Abstract
A glass fiber forming bushing assembly wherein the bushing is supported by a frame is disclosed wherein portions of the frame are angled outwardly and downwardly. The result is a larger amount of insulating refractory between the bushing and the frame at the plane of the tip plate at the bottom of the bushing. This provides more uniform thermal conditions across the bushing. Structural integrity is provided by protrusions extending from the angled side frame portions into the refractory.