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. 13, 1988
Filed:
Sep. 28, 1987
James L Chevalier, Mequon, WI (US);
Douglas D King, Menomonee, WI (US);
John D Pfeffer, Brookfield, WI (US);
A. O. Smith Corporation, Milwaukee, WI (US);
Abstract
A method and apparatus for providing foam resin insulation for a vessel, such as a water heater. The water heater includes a tank to contain water to be heated and has a plurality of openings to receive components of the water heater. A jacket is spaced outwardly of the tank to provide a space therebetween to receive foam resin insulation. Prior to introducing the resin into the space, an elongated member, such as a rod, is engaged with the opening in the tank and the rod extends outwardly through an aligned opening in the jacket. A resilient pad, which is movable on the rod, is compressed against the outer surface of the jacket to seal the space between the jacket opening and the rod. A liquid foamable resin is introduced in the space between the tank and the jacket and expands to fill the space and provide an insulating layer.