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Method and apparatus for excavating earth to a desired depth

  • US 7,066,276 B1
  • Filed: 10/14/2003
  • Issued: 06/27/2006
  • Est. Priority Date: 10/14/2003
  • Status: Expired due to Fees
First Claim
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1. A method of excavating a below grade opening having a lower floor surface at a construction site, comprising the steps of:

  • providing a laser transmitter for emitting a laser beam signal at a predetermined elevation;

    providing a first vehicle;

    providing a remotely controlled receiver for receiving the laser beam signal emitted from said laser transmitter;

    connecting said first vehicle for remote control operation;

    mounting said receiver to said first vehicle for vertical movement thereon to provide a depth of opening measurement;

    providing a second vehicle separate from said first vehicle and having an excavator for excavating said opening;

    maneuvering said second vehicle to at least partially excavate said opening;

    maneuvering said first vehicle by remote control within said opening being excavated to position the receiver for receipt of the laser beam signal being sent by the laser transmitter;

    remotely vertically moving said receiver and remotely obtaining an elevation measurement from the first vehicle for an area of the floor surface occupied by said first vehicle;

    maneuvering said first vehicle by remote control to a new location on said floor surface, andmaneuvering said second vehicle to further excavate said area to obtain the desired depth over said floor surface.

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