Patents by Inventor David E. Mitchell

David E. Mitchell 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).

  • Publication number: 20030129938
    Abstract: A vacuum airtight hard plastic room (like a room size food storage container) for portablity from hospital to hospital for a cancer free surgery, a plastic room (a giant plastic container) thats airtight, Vacuum to zero level oxygen, so when a incision is made during surgery to remove the cancer that is a spreadable cancer from oxygen, there is no oxygen to come Into contact with the cancer therefore the cancereous tissues could be remove successfully with out spreading further during surgery, the patient, doctors, nurses will be supplied with oxygen tanks, and mask, before and during surgery.
    Type: Application
    Filed: July 11, 2002
    Publication date: July 10, 2003
    Inventor: David E. Mitchell
  • Patent number: 5130955
    Abstract: A swim/sporting event timer/counter times a athlete moveing along a predetermined path based on signals received from the athlete. A time counter begins when movement of the athlete is detected. Based upon the amount of time it takes for the athlete to pass by the timing system, the time counter is automatically adjusted, if necessary, to account for the time counter having been started at an incorrect time.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: July 14, 1992
    Inventors: Dean Luerker, David E. Mitchell
  • Patent number: 4718507
    Abstract: An electronic scale and length measurement apparatus including an electric transducer for providing an electrical signal indicative of the weight of an object to be measured and an electronic length measurement transducer for providing an electrical signal indicative of the length of an object to be measured. These signals are processed by an electronic signal processing circuit including a microprocessor and a ROM. The microprocessor derives values indicative of the weight and the length of an object to be measured which are then alternatively displayed on a liquid crystal display. The weight measurement transducer comprises a deflecting beam and a coil which is part of an oscillator circuit. Calibration of the device may be effected by means of a variable position aluminum disc connected to the deflecting beam for varying the apparent inductance of the coil. The length signal is provided by means of a pair of LED's, an apertured tape, and a pair of photocells.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: January 12, 1988
    Assignee: Clyde W. Howlett
    Inventors: Clyde W. Howlett, David E. Mitchell
  • Patent number: D682083
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: May 14, 2013
    Inventor: David E. Mitchell