×

Cycle counter for wheeled tractor scraper

  • US 8,635,792 B2
  • Filed: 12/14/2010
  • Issued: 01/28/2014
  • Est. Priority Date: 12/14/2010
  • Status: Active Grant
First Claim
Patent Images

1. A cycle counter for a wheeled tractor scraper, comprising:

  • an ejector configured to push material from a bowl of the wheeled tractor scraper;

    a sensor configured to generate a pressure signal indicative of a position of the ejector;

    a controller in communication with the sensor;

    a timer in communication with the controller; and

    a cushion hitch connecting a tractor portion of the wheeled tractor scraper to the bowl,wherein the controller is configured to;

    determine movement of the ejector toward a full dump position based on the pressure signal;

    activate the timer;

    record completion of a cycle for the wheeled tractor scraper after the ejector has reached the full dump position only if a value of the pressure signal exceeded a threshold value during movement of the ejector toward the full dump position and a threshold amount of time has elapsed after the timer has been activated; and

    record completion of the cycle only when the cushion hitch enters a float mode of operation after the timer has been activated.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×