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Last Updated: March 29, 2024

Claims for Patent: 7,837,579


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Summary for Patent: 7,837,579
Title:Baseball and softball bats with fused nano-structured metals and alloys
Abstract: A sports bat, such as a baseball or softball bat, is electro-deposited with a nanostructured metal. Bats made from aluminum alloys or other metals may be electro-deposited with varying thicknesses of nanostructured metals such as nickel, nickel iron, cobalt phosphorous, or similar materials. The bat substrate alloy can be any metal or alloy. The coating may be done using an electro-deposition process.
Inventor(s): Bhatt; Dhananjay (Laguna Hills, CA), Davidson, III; William F. (Huntington BCH, CA), Brutlag; Andy (Carlsbad, CA), Hughes; Edward (Encinitas, CA)
Assignee: Powermetal Technologies, Inc. (Carlsbad, CA)
Application Number:12/052,530
Patent Claims:1. A sports bat comprising: a body portion including a barrel portion, a taper portion and a handle portion, wherein at least a portion of the body portion is at least one of externally and internally coated with fine-grained material having an average gain size in the range from 1 to 1,000 nm, and wherein selected sections of said portion coated with the fine-grained material include an activation layer to facilitate adhesion of the fine-grained material to said selected sections and selected sections of said portion coated with the fine-grained material do not include an activation layer.

2. A sports bat of claim 1, wherein said body portion is selected from the group consisting of 1XXX pure Al, 2XXX Al--Cu-alloys, 3XXX, Al--Mn-alloys, 4XXX Al--Si-alloys, 5XXX Al--Mg-alloys, 6XXX Al--Mg--Si-alloys, 7XXX Al--Zn-alloys, 8XXX alloys, Sc-containing Al alloys, Al--Li alloys and Mg alloys.

3. A sports bat of claim 1, wherein said portion is externally coated with the fine-grained material.

4. A sports bat of claim 1, wherein said portion is internally coated with the fine-grained material.

5. A sports bat of claim 1, wherein yield strength of the fine-grained material of said portion is at least about 800 MPa.

6. A sports bat of claim 1, wherein modulus of resilience of the fine-grained material of said portion is at least about 0.15 MPa.

7. A sports bat of claim 1, wherein an elastic limit of the fine-grained material of said portion is at least about 0.75 percent.

8. A sports bat of claim 1, wherein a hardness of the fine-grained material of said portion is at least about 460 Vickers.

9. A sports bat of claim 1, wherein the fine-gained material comprises at least about 2.5 percent by volume of said portion.

10. A sports bat of claim 1, wherein said portion coated with the fine-grained material has a single-wall barrel conformation.

11. A sports bat of claim 1, wherein the fine-grained material has a variable thickness.

12. A sports bat of claim 1, wherein the thickness of the fine-grained material is between approximately 0.001 mm and approximately 1 mm.

13. A sports bat of claim 1, further comprising at least one insert, wherein said body portion defines a chamber dimensioned to receive said at least one insert, wherein at least a portion of said at least one insert is at least one of externally and internally coated with the fine-grained material.

14. A sports bat of claim 13, further comprising a cap portion and a knob portion, said cap portion and said knob portion being coupled to respective ends of the body portion for sealing said at least one insert within said chamber of said body portion, wherein at least one of said cap portion and said knob portion is at least one of externally and internally coated with fine-grained material.

15. A sports bar of claim 14, wherein said at least one insert is substantially formed of the fine-gained material selected from the group consisting of nickel, nickel-phosphorus, nickel-iron, nickel-zinc, cobalt, cobalt-phosphorous, copper, zinc, silver, gold, and platinum.

16. A sports bat of claim 1, further comprising an external sleeve positioned over at least a portion of the body portion.

17. A sports bat of claim 16, wherein at least a section of said portion of the body portion is activated to facilitate adhesion of the sleeve to said portion of the body portion.

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