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:
Oct. 03, 1978
Filed:
Nov. 23, 1977
Robert S Lackey, Pittsburgh, PA (US);
Robert R Young, Murrysville, PA (US);
John C Kastovich, Murrysville, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
The base construction comprises base rails along each side and each end, with each of the rails having the shape in transverse cross section of an upwardly open channel with the outer leg of the channel having a height greater than the inner leg, and the inner leg having a horizontal flange projecting inwardly from along the top of the inner leg, and separate pan means forming the bottom walls for both the outdoor air flow section and the separate indoor air flow section, each including a horizontal wall and an upturned flange along each edge, the pans nesting in the frame formed by the rails, the assembly thus formed being secured together by spot welding the upturned flanges to the outer legs, and the horizontal walls of the pans along their margins to the inwardly projecting horizontal flanges of the rails.