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Debris level indicator in vacuum loaded mobile tanks

  • US 9,045,072 B2
  • Filed: 10/27/2010
  • Issued: 06/02/2015
  • Est. Priority Date: 11/02/2009
  • Status: Active Grant
First Claim
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1. A system for monitoring the operation of a vacuum loader truck including a storage tank and a vacuum source in fluid communication with the storage tank, wherein the vacuum source operates to create a partial vacuum within the storage tank to draw debris into the storage tank, the system comprising:

  • a debris level sensor mounted at a top end of the storage tank, wherein the debris level sensor generates a sensing beam downward toward a bottom end of the storage tank to sense a distance to a top surface of the debris in the storage tank;

    a control module connected to the debris level sensor to receive a signal from the debris level sensor and determine a level of debris in the storage tank, wherein the control module generates an output signal to a visual display that visually indicates the determined level of debris in the storage tank; and

    a flushing device positioned to direct a flow of water onto the debris level sensor to clear the debris level sensor, wherein the flushing device is in communication with the control module.

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