Drum lift indicators and inventory control devices

摘要

The present invention provides new drum lift indicators and inventory control devices for use with drum handling equipment. The drum lift indicators and inventory control devices provide signals indicative of whether drums are properly clamped in the drum lifting equipment. The devices may also provide various other information, for example a count of the number of drums lifted and the amount of time the drum lift indicator and inventory control device is in service. One drum lift indicator and inventory control device according to the present invention has a clamp sensor positioned on a drum lifting clamp, in which the clamp sensor has a sensor signal indicative of whether the drum lifting clamp is clamped onto the drum. A drum clamp indicator is connected to the drum clamp sensor and receives the sensor signal from the clamp sensor. An operator receivable indicator signal is produced by the clamp indicator in response to the sensor signal when the drum lift clamp is clamped onto the drum.