Patents by Inventor David J. H. Peacock

David J. H. Peacock 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).

  • IC engine cylinder output power measurement apparatus by monitoring the output of an alternator driven by the engine
    Patent number: 5087881
    Abstract: The apparatus for measuring the comparative output power of each cylinder of a multi-cylinder engine comprises a digital signal processor 1 and a phase locked loop detector 2. By inputting instantaneous current measurements from (e.g.) a current transformer attached to an alternator output of an engine under test and analysing same in the processor 1, instantaneous engine speed may be measured. This measurement may be processed to determine comparative measurements of compression and power output of each of the cylinders.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: February 11, 1992
    Inventor: David J. H. Peacock
  • Ultrasonic leak detection
    Patent number: 4987769
    Abstract: To permit ultrasonic leak detection, especially in internal combustion engines, an ultrasonic source is housed in a tubular body adapted for attachment to a sparking plug aperture in an engine and ultrasonic signals may thereby be injected into engine cylinders, there being an ultrasonic detector having a body with a tapered end to ensure directional limitation is used.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: January 29, 1991
    Assignee: David John Howard Peacock
    Inventors: David J. H. Peacock, Michael D. Dorsett