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. 11, 1985
Filed:
Sep. 01, 1983
Applicant:
Inventor:
Perry P Pirooz, Toledo, OH (US);
Assignee:
Owens-Illinois, Inc., Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 15 ; 501 17 ; 501 22 ; 501 32 ;
Abstract
A sealing glass composition comprising a lead borate glass matrix and a Willemite filler that provides a blended sealing glass composition with outstanding properties including excellent thermal (button flow and rod seal stress values) and chemical properties. A method of making the Willemite filler is described, the method including critical firing times and temperatures in order to produce the highly effective filler.