bigred90gt,
As for Texas Law...an illegal knife is classified as a multitude of things including:
A. knife with a blade over five and one-half inches;
B. hand instrument designed to cut or stab another by being
thrown
C. dagger, including but not limited to dirk, stiletto, and poniard;
D. bowie knife;
E. sword; or
F. spear.
(quote from Texas Penal Code 46.01. Definitions)
The law also prohibits switchblades including autos and gravity knives.
The law, fortunately, makes no distinction between concealed carry or open carry for knives. However, I don't think you can get away with carrying a sword in Texas.
The only exemption I could think of would be if it was considered an antique, but even then it is questionable.

--nathan
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