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:
Aug. 21, 1990
Filed:
Aug. 18, 1989
Applicant:
Inventor:
Frank J DiFrank, Toledo, OH (US);
Assignee:
Owens-Illinois Glass Container Inc., Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; C03B / ;
U.S. Cl.
CPC ...
65325 ; 6537411 ; 6537412 ; 6537413 ; 222591 ;
Abstract
An orifice ring insert formed of a heat resistant metal such as 50-50 nickel-chrome alloy is dropped into position within the orifice opening in the ceramic orifice ring. The ring is counterbored to receive the flange of the ring with sufficient clearance to permit expansion. A lock nut is threaded to the lower end of the insert. The lock nut has a slope to its upper surface that contacts the bottom of the ceramic orifice ring. This slope takes into consideration the relative thermal expansion rates of the metal insert and ceramic orifice member. The nut stays tight during operation but does not crack the ceramic.