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:
Jun. 21, 1977
Filed:
Mar. 10, 1976
Joseph E Cooper, Brakenridge, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Disclosed is an improved process for pelletizing batch glass making ingredients. The ingredients are pelletized in an inclined, rotating disc pelletizer using concentrated liquid alkali metal hydroxide as a binding agent and as a source of alkali metal oxide. The improvement of the invention resides in adding the glass batch ingredients directly to the pelletizing disc and pelletizing them thereon. Pellets having a 5 to 9 percent by weight moisture content are continuously produced using either fine or coarse naturally ocurring sand. The freshly formed pellets can be fed directly to a furnace or can be easily dried at slightly elevated temperature usually at temperatures not exceeding 500.degree. C. to give a strong, storage-stable pellet.