Patents by Inventor Kaluarachchige Dharmapriya WIJEWICKREME

Kaluarachchige Dharmapriya WIJEWICKREME 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).

  • Apparatus and method for monitoring loss of soil cover
    Patent number: 11320260
    Abstract: A device for determining a height of soil above a structure buried below a soil bed includes a sensor assembly comprising a total stress pressure sensor for transmitting a first signal indicating a total pressure, a pore water pressure sensor located proximate to the total stress pressure sensor, the pore water pressure sensor for transmitting a second signal indicating a fluid pressure, a sensor module configured to receive the first and the second signals, determine a difference between the first signal and the second signal, based on the difference between the first signal and the second signal, determine a height of soil above the sensor assembly, and transmit a third signal indicating the height of soil to an external device.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 3, 2022
    Assignee: The University of British Columbia
    Inventors: Kaluarachchige Dharmapriya Wijewickreme, Michael Isaacson, Ruslan Shanth Amarasinghe, Noboru Yonemitsu
  • APPARATUS AND METHOD FOR MONITORING LOSS OF SOIL COVER
    Publication number: 20200064129
    Abstract: A device for determining a height of soil above a structure buried below a soil bed includes a sensor assembly comprising a total stress pressure sensor for transmitting a first signal indicating a total pressure, a pore water pressure sensor located proximate to the total stress pressure sensor, the pore water pressure sensor for transmitting a second signal indicating a fluid pressure, a sensor module configured to receive the first and the second signals, determine a difference between the first signal and the second signal, based on the difference between the first signal and the second signal, determine a height of soil above the sensor assembly, and transmit a third signal indicating the height of soil to an external device.
    Type: Application
    Filed: January 31, 2018
    Publication date: February 27, 2020
    Inventors: Kaluarachchige Dharmapriya WIJEWICKREME, Michael ISAACSON, Ruslan Shanth AMARASINGHE, Noboru YONEMITSU