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Method and apparatus for cutting, abrading, and drilling with sublimable particles and vaporous liquids

United States Patent

*** EXPIRED ***
5,733,174
March 31, 1998
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A gas delivery system provides a first gas which is in a liquid state under extreme pressure and in a gaseous state under intermediate pressure. A particle delivery system provides a slurry comprising the first gas in a liquid state and a second gas in a solid state. The second gas is selected so that it will solidify at a temperature at or above the temperature of the first gas in a liquid state. A nozzle assembly connected to the gas delivery system and to the particle delivery system produces a stream having a high velocity central jet comprising the slurry, a liquid sheath surrounding the central jet comprising the first gas in a liquid state and an outer jacket surrounding the liquid sheath comprising the first gas in a gas state.
Bingham; Dennis N. (Idaho Falls, ID), Swainston; Richard C. (Shelley, ID), Palmer; Gary L. (Shelley, ID)
Lockheed Idaho Technologies Company (Idaho Falls, ID)
08/ 513,709
August 11, 1995
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. DE-AC07-94ID13223 between the U.S. Department of Energy and Lockheed Idaho Technologies Company.