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Crane swing warning system

  • US 6,102,373 A
  • Filed: 02/05/1998
  • Issued: 08/15/2000
  • Est. Priority Date: 02/05/1998
  • Status: Expired due to Term
First Claim
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1. In a crane which has an undercarriage which is stationary as it relates to an upper body that rotates around a substantially vertical axis in order to move certain objects from one location to another vertically and/or horizontally, the improvement is as follows:

  • caution tape, support means for suspending the caution tape completely surrounding the rotating superstructure of the upper crane body with spatial relation extending past the undercarriage wherein the support means comprises an arm with a magnetic base capable of support the arm when attached to the crane.

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