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. 07, 1999
Filed:
Nov. 13, 1998
Norman E Mattson, Racine, WI (US);
Colette L Knowles, Racine, WI (US);
Modine Manufacturing Company, Racine, WI (US);
Abstract
An all weather inlet/exhaust structure (32) for an outdoor furnace (10,12,14) includes a generally rectangular upper compartment (40) having an imperforate upper wall (42) and horizontally louvered, vertical side walls (44) along with an imperforate bottom wall (46) with a generally central opening (48) therein. A lower compartment (56) in the form of an inverted truncated pyramid with its upper wall being defined by the lower wall (46) of the upper compartment is provided. The lower compartment has horizontally louvered, sloped, inwardly directed side walls (58) terminating in an open bottom (60) of smaller size than the first compartment lower wall (46). A generally rectangular inlet air duct (66) depends from the lower edges of the lower compartment side walls (58) and an exhaust duct (26) is disposed within the inlet air duct (66) and extends upwardly through the lower compartment (56) to the generally central opening (48) and the bottom wall (46) of the upper compartment (40).