| US 7,527,714 B2 | ||
| Water heater anode and mounting fixture | ||
| Mutubwa K. Kahite, Madison, Wis. (US); and Michael B. Steinhafel, Madison, Wis. (US) | ||
| Assigned to Bock Water Heaters, Inc., Madison, Wis. (US) | ||
| Filed on Feb. 12, 2007, as Appl. No. 11/673,859. | ||
| Prior Publication US 2008/0190919 A1, Aug. 14, 2008 | ||
| Int. Cl. C23F 13/16 (2006.01) | ||
| U.S. Cl. 204—196.18 [204/196.17; 204/196.23; 204/196.24; 204/196.25; 204/196.3; 204/196.31; 204/196.37] | 19 Claims |
| 1. A tank assembly for holding hot water, comprising:
a steel water tank, the water tank having a cylinder portion and a top dome; and
an electrically conductive spud of a selected length, the spud having a first end which is attached to the top dome of the
water tank and defining an opening into the water tank, wherein the spud extends upwardly from the water tank and terminates
in a second end having portions defining external threads; and
an anode rod of a selected length extending through the spud into the water tank, the anode rod having a first end and a second
end, the anode rod having a steel core and a quantity of sacrificial metal surrounding the steel core; and
a steel disk, the steel disk attached to the steel core and centered with respect to the steel core at the first end of the
anode rod, the steel disk being electrically connected to the anode rod steel core; and
a water sealing gasket which encircling the anode rod, the gasket fitting between the second end of the spud and the steel
disk; and
an internally threaded electrically conductive nut threadedly engaged with the external threads of the spud, the nut having
portions that engage the steel disk and bias the steel disk against the gasket and the second end of the spud.
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