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. 07, 2000
Filed:
Aug. 21, 1998
Fred A Overbey, Jr, Bristol, TN (US);
Zoran Valcic, Chatswood, AU;
Geoffrey Mervyn Whitford, Dundas, AU;
SRP 687 Pty Ltd., , AU;
Abstract
A water heater that includes a water container, a combustion chamber, adjacent the water container, having at least one inlet to admit air and extraneous fumes into the combustion chamber, at least one inlet comprising a metal plate about 0.4 to 0.6 mm in thickness and through which pass a plurality of ports, the ports comprising a plurality of slots and holes, each slot having a quenching distance of about 0.6 mm, and each hole having a quenching distance in the range of about 0.7 to 0.8 mm and being capable of confining ignition and combustion of said extraneous fumes within the combustion chamber; and a burner associated with the combustion chamber and arranged to combust fuel to heat water in the container.