Patents by Inventor Mark Q. Meyer

Mark Q. Meyer 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).

  • Capacitive sensor and metal detector with a display for quantitatively displaying signals resulting from concealed objects
    Patent number: 4992741
    Abstract: A device for detecting objects behind a wall or like surface has a multiplicity of capacitor plates at spaced intervals and a circuit for sensing alterations in the dielectric constant of a region of the surface being inspected and adjacent to each of the capacitor plates. A multiplicity of quantitative display elements are arranged at intervals in a visual display, and each display element provides a quantitative value representative of the strength of the signal generated by the associated capacitor plate. Thus, the images in the display elements will increase and decrease to reflect the quantitative signals and effectively image the object being detected.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: February 12, 1991
    Assignee: The Stanley Works
    Inventors: Keith Douglas, Mark Q. Meyer
  • Apparatus having capacitive sensor and metal detector for detecting objects concealed behind surfaces
    Patent number: 4853617
    Abstract: A device for detecting concealed objects behind a surface, the device being intended in use to be held near and passed over the surface. The device detects changes in the dielectric constant of the surface resulting from the presence of concealed objects, and also includes metal detector means. The design precludes interference between the two kinds of sensors.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: August 1, 1989
    Inventors: Keith Douglas, Mark Q. Meyer