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:
Sep. 06, 2005
Filed:
May. 30, 2003
Timothy A. Neeser, Savage, MN (US);
Thomas J. Shaw, Montgomery, MN (US);
David A. Wondra, Montgomery, MN (US);
Paul A. Drube, Burnsville, MN (US);
Timothy A. Neeser, Savage, MN (US);
Thomas J. Shaw, Montgomery, MN (US);
David A. Wondra, Montgomery, MN (US);
Paul A. Drube, Burnsville, MN (US);
Chart Inc., Burnsville, MN (US);
Abstract
A supplemental water heater tank and system features a supplemental tank with an inner vessel surrounded by an outer jacket. The space there between is generally evacuated of air so that the inner vessel is vacuum insulated. The supplemental tank includes water inlet and outlet ports. Water is heated in a water heater and transferred from the upper portion of the water heater tank to the lower portion of the vacuum-insulated supplemental tank through an insulated line and a dip tube that extends between the water inlet port and the bottom portion of the inner vessel. Hot water is withdrawn from the upper portion of the inner vessel of the supplemental tank for use in a home or the like.