Patents by Inventor Robert G. Schleicher

Robert G. Schleicher 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).

  • Patent number: 5095205
    Abstract: A spectroanalytical system with a plurality of radiation sources and structure defining an analysis region that includes means for thermally energizing a sample material to be analyzed. Analysis beam path defining structure includes means for passing a radiation beam from a radiation source along the analysis beam path through the analysis region for modification by sample material in the analysis region. Analysis structure includes radiation dispersing structure arranged to disperse radiation in the analysis beam path with a spectrum and a radiation sensor. First transducer structure moves the dispersing structure relative to the beam path to apply a selected portion of the radiation dispersed by the dispersing structure to the radiation sensor.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: March 10, 1992
    Assignee: Thermo Jarrell Ash Corporation
    Inventors: Robert G. Schleicher, Bruce C. Fitz-Patrick, Paul M. Moran, David L. Pfeil
  • Patent number: 5088823
    Abstract: A spectroanalytical system includes entrance aperture defining structure for receiving radiation to be analyzed along a first path; collimating structure in the first path for providing collimated radiation along a second path; fixed refraction structure in the second path for spatially separating (refracting) radiation in the second path in a first direction as a function of wavelength; fixed echelle grating structure in the second path for spatially separating the refracted radiation as a function of wavelength in a second direction orthogonal to the first direction and directing the orthogonally dispersed radiation in a beam along a third path that does not pass through the first refraction structure; and two-dimensional array detector structure for detecting the beam of orthogonally refracted radiation.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: February 18, 1992
    Assignee: Thermo Jarrell Ash Corporation
    Inventors: Stanley B. Smith, Jr., Robert G. Schleicher
  • Patent number: 4531836
    Abstract: A spectroanalytical method includes the steps of exciting material to spectroemissive levels, dispersing radiation from the excited sample material into a spectrum, positionally locating a reference constituent of the excited material in the spectrum, the reference constituent having a known wavelength offset from an element of interest in the sample material to be analyzed, and then shifting the known wavelength offset by an essentially hysteresis free mechanism and making an analytical measurement at that wavelength offset position of radiation produced by a spectrum from sample material that has been excited to spectroemissive levels.
    Type: Grant
    Filed: March 8, 1983
    Date of Patent: July 30, 1985
    Assignee: Allied Corporation
    Inventors: Stanley B. Smith, Jr., Robert G. Schleicher, Jon N. Waterman
  • Patent number: 4361401
    Abstract: Method and apparatus for automatically depositing predetermined reproducible amounts of nebulized samples into a furnace atomizer of an atomic absorption spectrophotometer, the atomizer being provided with an aperture, wherein a plurality of sample containers containing samples to be analyzed are arranged and successively transported on a sample supporting device, with the sample containers being open at their upper ends. The samples are aspirated from the containers via a suitable means and into a nebulizer-mixing chamber device wherein they are nebulized and mixed until such time that the nebulized sample achieves full equilibrium therein. A means is provided for depositing the nebulized and now equilibrated sample from the chamber device through the aperture into the furnace atomizer.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: November 30, 1982
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Stanley B. Smith, Jr., Robert G. Schleicher, Edward C. Eldred
  • Patent number: 4326802
    Abstract: A highly accurate, rapid scanning monochromator type of spectroanalysis system employs a source of the plasma emission type, a filtering monochromator, and a resolving monochromator. Each monochromator has a dispersing element and the two dispersing elements are arranged to be moved simultaneously but at different rates such that the spectral order of radiation from the source as dispersed by the first dispersing element is different from the spectral order of radiation dispersed by the second dispersing element, together with selectively operable control means for moving the two dispersing elements simultaneously and at the same rate.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: April 27, 1982
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Stanley B. Smith, Jr., Robert G. Schleicher, Allan G. Dennison
  • Patent number: 4306175
    Abstract: An induction plasma system includes a plasma chamber, a high frequency electrical coil that surrounds the chamber, and an oscillator for energizing the coil to establish a plasma maintaining condition in the chamber. The oscillator tank circuit includes the coil, and is tuned so that it is essentially at resonance when a plasma condition is established in the chamber. Ignition means is arranged for initiating a plasma condition, and is constructed such that insertion of the ignition means into the chamber in the absence of a plasma condition shifts the impedance condition in the chamber to essentially the same tuned condition that exists when a plasma condition is established in the plasma chamber, but without need to adjust any component of the tank circuit.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: December 15, 1981
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Robert G. Schleicher, Stanley B. Smith, Jr., George A. McLean