Crane hook and trolley camera system

  • US 7,656,459 B2
  • Filed: 04/20/2006
  • Issued: 02/02/2010
  • Est. Priority Date: 04/20/2006
  • Status: Active Grant
First Claim
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1. A crane camera system having a trolley camera system adapted to be mounted on a trolley of a crane comprising:

  • a hook camera system mounted on a hook device including a hook camera;

    a trolley signal receiver for receiving hook camera image signals transmitted from a hook camera image signal transmitter on a hook device suspended by cables from the trolley, anda trolley signal transmitter for wirelessly transmitting the received hook camera image signals in a direction along a boom, the trolley is mounted on toward an operator cabin located at a proximal part of the boom,wherein the trolley camera system is supplied with power from an ambient energy generator that draws enemy from the spin of the trolley pulleys in a magnetic field.

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