Patents by Inventor David Clinton ANDREWS

David Clinton ANDREWS 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).

  • System and method of calculating a payload weight
    Patent number: 10982415
    Abstract: A system of calculating a payload weight, the system including: a first sensor configured to assist in determining an actuator load associated with a ram, the ram being connected to a lifting member; and a calibration module configured to retrieve a calibration factor based on movement of the ram, the calibration factor being applied to the actuator load to thereby provide an adjusted actuator load; wherein the payload weight is calculated based on the adjusted actuator load.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: April 20, 2021
    Assignee: CQMS PTY LTD
    Inventors: Bruce Alexander Leslie, David Clinton Andrews, Nicholas Simon Hillier
  • System and method of estimating fatigue in a lifting member
    Patent number: 10294636
    Abstract: A system of estimating fatigue in a lifting member, the system including: a first sensor configured to measure a first load related to a ram, the ram being connected to the lifting member; and a calculating device configured to: determine an actuator load based on the first load; determine a first force based on the actuator load; estimate a unit of fatigue life based on the first force; and estimate a fraction of total fatigue life consumed for a portion of the lifting member based on the unit of fatigue life and a fatigue life adjustment value.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: May 21, 2019
    Assignee: CQMS PTY LTD
    Inventors: Bruce Alexander Leslie, David Clinton Andrews
  • A SYSTEM AND METHOD OF ESTIMATING FATIGUE IN A LIFTING MEMBER
    Publication number: 20180258617
    Abstract: A system of estimating fatigue in a lifting member, the system including: a first sensor configured to measure a first load related to a ram, the ram being connected to the lifting member; and a calculating device configured to: determine an actuator load based on the first load; determine a first force based on the actuator load; estimate a unit of fatigue life based on the first force; and estimate a fraction of total fatigue life consumed for a portion of the lifting member based on the unit of fatigue life and a fatigue life adjustment value.
    Type: Application
    Filed: December 24, 2014
    Publication date: September 13, 2018
    Inventors: Bruce Alexander Leslie, David Clinton Andrews
  • SYSTEM AND METHOD OF CALCULATING A PAYLOAD WEIGHT
    Publication number: 20170370075
    Abstract: A system of calculating a payload weight, the system including: a first sensor configured to assist in determining an actuator load associated with a ram, the ram being connected to a lifting member; and a calibration module configured to retrieve a calibration factor based on movement of the ram, the calibration factor being applied to the actuator load to thereby provide an adjusted actuator load; wherein the payload weight is calculated based on the adjusted actuator load.
    Type: Application
    Filed: December 24, 2014
    Publication date: December 28, 2017
    Inventors: Bruce Alexander LESLIE, David Clinton ANDREWS, Nicholas Simon HILLIER