Land vehicles – Skates – Runner type
Reexamination Certificate
2003-02-20
2011-11-01
Walters, John (Department: 3618)
Land vehicles
Skates
Runner type
Reexamination Certificate
active
08047552
ABSTRACT:
A Nitinol ice blade includes a blade body having attachment structure by which it is held in a blade holder of an ice travel device, such as an ice skate or ice boat. The processes and products made by the processes. The processes include selecting a Type 60 Nitinol sheet or bar that has been hot-worked at a temperature of above about 900° C. to a reduction of at least 2% in the dimension of said hot-working. Blade blanks are cut from the sheet, and the blade blanks are heated to between 600° C. to about 800° C. and immediately quenched to ambient temperature to produce blanks having a hardness of about 48-53 RC. The running edge of the blade blanks a ground to a desired profile and sharpness. The ground blades may then be heated to an elevated temperature of about 850-1000° C. and immediately quenched to produce a hardness at the edge of above 56 RC.
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“Fabrication of Nitinol Materials and Components” taken from “Proceedings of the International Conference of Shape Memory and Superelastic Technologies, Kunming, China, p. 285-292 (2001)” by Ming H. Wu.
“Fabrication of Nitinol Materials and Components” taken from “Proceedings of the International Conference of Shape Memory and Superelastic Technologies, Kunming, China, p. 285-292 (2001)” by Ming H. Wu.
Whittom, F.: Desmeules Roy, O.: Bouchard, F.: Comtois, A.S.; “Ice Hockey Players Skating Speed Improved By A Novel Material Skate Blade” Medicine & Science In Sports & Exercise: May 2009 vol. 41, Issue 5, p. 127.
Neary J. Michael
Nitinol Technology, Inc.
Walters John
LandOfFree
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