Patents by Inventor William M. McDowell

William M. McDowell 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).

  • Peristaltic injector pump leak monitor
    Patent number: 7001153
    Abstract: A pump leak monitor for use with a peristaltic pump comprises a pump housing and a pair of electrical contacts disposed along a bottom end of the pump housing. The electrical contacts are located such that the contacts are immersed in fluid when the pump is leaking. The fluid conducts electricity across the contacts and thereby closes an electrical circuit for providing an indication that a leak has been detected. By measuring an electrical parameter in the circuit, the pump leak monitor is capable of measuring the conductivity of the fluid in the pump housing. As a result, the pump leak monitor is capable of differentiating between different types of fluid.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: February 21, 2006
    Assignee: Blue-White Industries
    Inventors: William M. McDowell, John T. Nguyen
  • Peristaltic injector pump leak monitor
    Publication number: 20040265154
    Abstract: A pump leak monitor for use with a peristaltic pump comprises a pump housing and a pair of electrical contacts disposed along a bottom end of the pump housing. The electrical contacts are located such that the contacts are immersed in fluid when the pump is leaking. The fluid conducts electricity across the contacts and thereby closes an electrical circuit for providing an indication that a leak has been detected. By measuring an electrical parameter in the circuit, the pump leak monitor is capable of measuring the conductivity of the fluid in the pump housing. As a result, the pump leak monitor is capable of differentiating between different types of fluid.
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: William M. McDowell, John T. Nguyen