Patents by Inventor Joseph L. Alvarez

Joseph L. Alvarez 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).

  • Solid colloidal optical wavelength filter
    Patent number: 5131736
    Abstract: A solid colloidal optical wavelength filter includes a suspension of spheal particles dispersed in a coagulable medium such as a setting plastic. The filter is formed by suspending spherical particles in a coagulable medium; agitating the particles and coagulable medium to produce an emulsion of particles suspended in the coagulable medium; and allowing the coagulable medium and suspended emulsion of particles to cool.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: July 21, 1992
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Joseph L. Alvarez
  • Apparatus and method for spraying liquid materials
    Patent number: 4919853
    Abstract: A method for spraying liquids involving a flow of gas which shears the liquid. A flow of gas is introduced in a converging-diverging nozzle where it meets and shears the liquid into small particles which are of a size and uniformity which can be controlled through adjustment of pressures and gas velocity.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: April 24, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Joseph L. Alvarez, Lloyd D. Watson
  • Device and technique for in-process sampling and analysis of molten metals and other liquids presenting harsh sampling conditions
    Patent number: 4806150
    Abstract: An apparatus and method for continuously analyzing liquids by creating a supersonic spray which is shaped and sized prior to delivery of the spray to a analysis apparatus. The gas and liquid are mixed in a converging-diverging nozzle where the liquid is sheared into small particles which are of a size and uniformly to form a spray which can be controlled through adjustment of pressures and gas velocity. The spray is shaped by a concentric supplemental flow of gas.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: February 21, 1989
    Assignee: The United States Department of Energy
    Inventors: Joseph L. Alvarez, Lloyd D. Watson