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:
Jan. 12, 1982
Filed:
Nov. 19, 1980
Richard R Mayers, Delta, OH (US);
Dennis A Chojnacki, Toledo, OH (US);
Midland-Ross Corporation, Cleveland, OH (US);
Abstract
A carbottom furnace is described as having high velocity or high momentum-type stoichiometric burners, rather than excess air-type burners. Hot exhaust gas, removed from the furnace, is recirculated immediately back to the heat treatment chamber of the furnace, without reheating, in a manner which compliments and reinforces the swirling flow of gas created in the chamber by the high momentum burners. This recirculation of exhaust gas is especially useful during normal turndown of the burners to maintain sufficient volume of heated gas within the chamber to properly heat treat the articles or workpieces which are positioned within the chamber.