Patents by Inventor Craig Ragaglia

Craig Ragaglia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Burst pulse cleaning method and apparatus for liquid delivery system
    Patent number: 6178925
    Abstract: A liquid delivery apparatus for vaporizing a liquid to produce a vapor therefrom. The apparatus incorporates a vaporizer with a surface arranged to receive liquid thereon. A liquid feed assembly is provided, including (i) a liquid source and (ii) a liquid flow circuit coupled to the liquid source and arranged to discharge liquid onto the vaporizer surface during liquid vaporization operation. The apparatus features a burst purging assembly including a pressurized gas source joined in gas flow communication with the liquid flow circuit. The pressurized gas source is arranged to introduce a clearance burst of pressurized gas into the liquid flow circuit after completion of the liquid vaporization operation, so that hold-up liquid in the liquid flow circuit and/or vaporizer following completion of the liquid vaporization operation is discharged onto the vaporizer surface and vaporized.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: January 30, 2001
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Edward A. Sturm, Gautam Bhandari, Craig Ragaglia