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Free-piston cutting machine

United States Patent

6,125,834
October 3, 2000
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas under pressure. A second gas fills the compression tube on a front face of the piston. And, the pressurized first gas is discharged into the tube on a back face of the piston to accelerate the piston through the tube for compressing the second gas, and in turn launching the projectile through the barrel to impact a workpiece.
Ciccarelli; Gaby (East Setauket, NY), Subudhi; Manomohan (East Setauket, NY), Hall; Robert E. (Port Jefferson, NY)
Brookhaven Science Associates (Upton, NY)
09/ 236,422
January 25, 1999
This invention was made with Government support under contract number DE-AC02-98CH10886, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.