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:
Feb. 23, 1982
Filed:
Sep. 25, 1980
Applicant:
Inventors:
Robert A Lawhon, Carlisle, PA (US);
Jeffrey S Yigdall, Conneaut Lake, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 9 / ; 651824 ;
Abstract
An edge roll apparatus for engaging the marginal edge portion of a hot ribbon of glass, including a body portion and circumferentially positioned teeth. The teeth are shaped to establish at least a 90.degree. angle between the surface of the glass and the leading and outwardly directed edges of the teeth during at least one half of a tooth's engagement path to improve gripping ability.