Sheffield Cavitron-Anyone Heard Of It?

Hi Everyone, as my post title states, I'm looking for information on the Sheffield Cavitron, Ultrasonic Machining Systems.

From what I have learned from my research, these were made by The Sheffield Corp. in Dayton, OH. To make a long story short, I found the company that bought out the Cavitron line, and they refuse to sell me anything for it. :-[

I also found a gentlemen that had ran a Cavitron when he worked for a government agency, but he didn't respond to my requests. :-[

So does anyone have any information on the wonderful little Cavitrons? I would L-O-V-E to get a copy of the manuals for one, or any information on them. From my research, there appears to have also been some books/publications made by Sheffield, "Machining the Unmachinable" and I think another one is "Ultrasonics for Machining".

Or has anyone ran one of these puppies before, and could relate their experiences to me?

Thanks for taking and the time to read this, and I would VERY much appreciate any help you could offer!

Thanks again!

Eric

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