Patents by Inventor Andrew T. MacKenzie

Andrew T. MacKenzie 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).

  • Device for in-line measurement of properties of fluid flows in pipeline systems
    Patent number: 6931952
    Abstract: A device called “pill” is provided for in-line measurement of properties, such as pressure and temperature, in a fluid flow within a pipeline system. The device is small enough to travel in the medium of the pipeline system in an unrestricted manner. It has at least one sensor to scan properties such as pressure and temperature at a desired rate. Also, the device includes a microprocessor for logging data scanned by the sensor so that it can later be downloaded and analysed by a PC. Moreover, the device has a buoyancy compensator for adjusting the specific gravity of the device to make it compatible with the medium in which it travels. The novel device is particularly suitable for use in solids transport systems, such as mining backfill systems.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 23, 2005
    Assignee: Canadian Mining Industry Research Organization
    Inventors: Paul A. Rantala, Andrew T. MacKenzie
  • Device for in-line measurement of properties of fluid flows in pipeline systems
    Publication number: 20040025607
    Abstract: A device called “pill” (10) is provided for in-line measurement of properties, such as pressure and temperature, in a fluid flow within a pipeline system. The device is small enough to travel in the medium of the pipeline system in an unrestricted manner. It has at least one sensor to scan properties such as pressure and temperature at a desired rate. Also, the device includes a microprocessor for logging data scanned by the sensor (18) so that it can later be downloaded and analysed by a PC. Moreover, the device has a buoyancy compensator for adjusting the specific gravity of the device to make it compatible with the medium in which it travels. The novel device is particularly suitable for use in solids transport systems, such as mining backfill systems.
    Type: Application
    Filed: November 18, 2002
    Publication date: February 12, 2004
    Inventors: Paul A Rantala, Andrew T MacKenzie