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US 5,853,553 AGranted
Sacrificial anode and method of making same
AssigneeAlumax Extrusions, Inc.
InventorRichard Twigg
Life of this patent
Estimating the term…
Abstract
A sacrificial anode and method of making a sacrificial anode are provided. The anode includes an extruded galvanically active metal rod and integrally formed end cap which has a cylindrically shaped portion with a threaded exterior surface. The anode is formed by extruding the rod, forging the end cap from the anchoring end portion of the rod, and machining the outer surface of the end cap to provide threads.
Claims6
A method of making a sacrificial anode, comprising the steps of:
- (a) extruding a galvanically active metal to form a rod having an anchoring end portion;
- (b) forging an end cap having a generally cylindrical portion from the anchoring end portion of the rod;
- and
- (c) machining threads on the generally cylindrical portion of the end cap.
1 more element
Dependencies are inferred from the claim text.