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:
Feb. 24, 2015
Filed:
Aug. 31, 2011
Joe B. Sutherland, San Antonio, TX (US);
Joe B. Sutherland, San Antonio, TX (US);
Abstract
A method of manufacturing a shell from sheet metal for a room air conditioner/heat pump is shown. The sheet metal is stamped and formed to a U-shaped rectangular shell with open ends and a shell brace. Flanges on the outer edge of the U-shaped rectangular shell overlap at corners with (a) adjacent flanges or (b) the shell brace. Both the U-shaped rectangular shell and shell brace are inserted into an assembly machine where the corners are clinched and punched. The outermost flange at each corner is punched to a fixed diameter, but the innermost flange or the shell brace is only punched to a conical shape. Screws are inserted at each corner that pass through the fixed diameter to threadably engage only the conical shape of the innermost flange or shell brace.