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:
Dec. 19, 2011
Filed:
Nov. 16, 2004
William S. Schjerven, Sr., Schaumburg, IL (US);
Mark A. Sieron, Arlington Heights, IL (US);
Bruce Grau, Island Lake, IL (US);
Adrian A. Bruno, Rolling Meadows, IL (US);
Gerald J. Schneeweiss, Romeoville, IL (US);
Sylvia Pauline Schneeweiss, Legal Representative, Romeoville, IL (US);
Frank Carbonara, Mount Juliet, TN (US);
William S. Schjerven, Sr., Schaumburg, IL (US);
Mark A. Sieron, Arlington Heights, IL (US);
Bruce Grau, Island Lake, IL (US);
Adrian A. Bruno, Rolling Meadows, IL (US);
Gerald J. Schneeweiss, Romeoville, IL (US);
Sylvia Pauline Schneeweiss, legal representative, Romeoville, IL (US);
Frank Carbonara, Mount Juliet, TN (US);
Middeby Marshall Incorporated, Elgin, IL (US);
Abstract
A conveyor oven has a modulating gas valve which raises and lowers the thermal output of a burner that heats the oven. A bypass line passes a minimum amount of gas to prevent the burner from completely shutting down during periods while the oven remains above a threshold demand for more heat. Electrical isolation is provided between temperature controlling devices to prevent an electrical feed back which might otherwise prevent a complete shut down of the oven during hazardous conditions.