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:
Nov. 24, 1992
Filed:
May. 19, 1989
George T Baggott, Cleveland, OH (US);
Import-Export Research and Development, Inc., Cleveland, OH (US);
Abstract
A convection oven comprises a heating compartment, a burner for effecting combustion of gas, a heat exchanger for conducting therethrough the products of combustion of gas initiated at the burner, first and second blowers for blowing air past the heat exchanger and into the heating compartment for heating the compartment, upper and lower blowers each having an inlet through which air is drawn into the blowers from a common side of the heating compartment for recirculation past the heat exchanger, and the heat exchanger having first and second outlets for the combustion products respectively disposed in front of the inlets of the upper and lower blowers. Each outlet is located to direct the combustion products towards a lower region of the inlet of the respective blower. The heating compartment has vertical walls extending generally perpendicular to the one side of the heating compartment, and respective baffles are spaced inwardly from the vertical walls and define therewith air plenum chambers into which is directed air from the heat exchanger. The baffles have therein a plurality of openings for passage of air from the plenums into an interior space located between the baffles, and the plenum chambers are substantially closed at their ends furthest from the heat exchanger to restrict flow of air around the baffles at the ends further from the heat exchanger.