Patents by Inventor Jeffrey Lance

Jeffrey Lance 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: 4942362
    Abstract: An analyzation apparatus for ignition systems that has a pulse detector circuit that generates and converts an AC signal into a DC signal, filters unwanted signals and allows the user to adjust the amplitude of the signal to accommodate differing ignition systems. A pulse stretching circuit is included to increase the duration of the signal and an analog driver circuit is included to convert the signal received by it to a linear voltage suitable for driving two LED display circuits. The LED circuits are connected in parallel with the driver circuit and the visual display of the LED circuits show a display proportional to the amplitude of the signal received from the driver circuit. The LED displays show the amplitude of the signal. The LED circuits have diodes the prevent current flow between adjacent LED's of the adjacent LED circuits. The apparatus includes a function switch to select the LED circuit desired and to interrupt power to the apparatus. A portion of the elements are enclosed in a case.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: July 17, 1990
    Inventor: Jeffrey Lance