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. 12, 1996
Filed:
Mar. 19, 1993
Eugene L West, Grand Rapids, MI (US);
Bradford White Corporation, Ambler, PA (US);
Abstract
A water heater including a steel water tank having a bottom plate and a deep drawn body portion welded together, the tank having a glass lining and openings to receive and discharge water; foam insulation surrounding the body portion; an outer covering surrounding the foam insulation; a bottom pan connected to the outer covering adjacent the bottom plate; and a heater connected to the tank. Also disclosed is a method of making a water heater including forming a steel water tank by welding together a bottom plate and a deep drawn body portion; lining the formed steel water tank with a glass coating; placing foam insulation forming liquids into a substantially rigid outer covering to form foam insulation having an interior portion with an open end and sized and shaped to substantially match the shape of the body portion of the water tank; positioning the water tank into the interior portion of the foam insulation; and covering the bottom plate of the water tank with a bottom pan and connecting the bottom pan to the outer covering.