Patents by Inventor Loran D. Sherwood

Loran D. Sherwood 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).

  • NOx Conversion efficiency detector
    Patent number: 4335073
    Abstract: An improved apparatus for facilitating the practice of a method for determining the conversion efficiency of the NOx converter of an oxides of nitrogen analyzer. An improved ozone control assembly facilitates the control of the ozone content of the gas mixture that is applied to the input of the analyzer. An improved gas flow regulating arrangement allows the composition of the gas mixture to be changed without affecting the flow rate thereof. Together, these structures improve the stability and ease of use of the conversion efficiency detector.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: June 15, 1982
    Assignee: Beckman Instruments, Inc.
    Inventors: Loran D. Sherwood, Jack J. Keegan, Stephen A. Gniewek