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. 09, 1983
Filed:
Feb. 05, 1982
John S Nitschke, Perrysburg, OH (US);
Other;
Abstract
A method and quench unit (10,10a,10b) disclosed provide tempering of a heated glass sheet by impinging pressurized air against its opposite surfaces while within a chamber (18) at super-atmospheric pressure. An enclosure (16) of the quench unit defines the chamber (18) and is preferably pressurized by the spent quenching air which is delivered through opposed blastheads (12). The spent quenching air is removed from the chamber (18) to maintain the air pressure below a predetermined level. An air supply system (24) disclosed cools and pressurizes the spent quenching air received from the chamber (18) and then feeds this air back to the blastheads (12) in a recirculating fashion for impingement with the glass sheet in the chamber.