Crane safety device and methods
OwnerJack B. Shawinventor
Life of this patent
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Abstract
An improved crane warning system which includes acceleration sensors, motion sensors, hydraulic sensors, remote communications and/or a camera. The crane warning system may include a crane warning device integrated into the ball of the crane.
Claims36
A crane warning device comprising:
- a perceptible warning signal;
- a sensor configured for detecting motion of a ball of a crane and actuating the perceptible signal responsive to the motion.
A crane warning system comprising a crane ball including a crane warning device.
A crane comprising a plurality of distributed crane warning devices.
A crane comprising a boom, a ball, and a camera mounted on the boom and facing the ball.
A crane comprising a ball, and a wide-angle camera mounted on the ball.
A method comprising mounting an electronic warning indicator on a counterweight of a crane.
A method comprising actuating an electronic warning indicator coupled to a ball of a crane responsive to movement of the ball.
A crane warning system comprising a crane ball, the crane ball including a sensor for ultrasonically detecting a relative distance of the crane ball from a predetermined portion of a crane.
A crane warning system for detecting a position of a crane ball, the crane warning device comprising:
- a first sensor disposed at a first location at a crane;
- a second sensor disposed at a second location at the crane;
- and
- a third sensor disposed at a third location at the crane, the first, second and third sensors being configured to determine a position of the crane ball using triangulation.
A crane warning system comprising a crane ball, the crane ball including a sensor for determining a twisting of the crane ball.
A crane warning system comprising an electronic warning indicator, the electronic warning indicator being mounted on a counterweight of a crane, the counterweight being coupled to a boom of the crane, the boom being pivotally coupled to a portion of the crane, the counterweight and the boom both being configured to pivot together relative to the portion of the crane.
A ball for a crane, the ball comprising a microphone.
A ball for a crane, the ball comprising a speaker.
Dependencies are inferred from the claim text.