Patent ID: 9518870
Filing Date: 2016-12-13
CPC Classification: B28C,G01K

Claim Text:
1. A wireless temperature sensor apparatus for measuring and transmitting temperature readings of concrete contained in a mixer drum mounted on a concrete delivery mixing truck, comprising: a processor mounted on the truck configured to receive signals from a temperature sensor via a wireless transmitter, and receive signals from a vibration sensor, the signals relating to a concrete load mixed in the concrete delivery mixing truck drum; a temperature sensor mounted to the mixer drum on the truck, the mixer drum-mounted temperature sensor being effective to measure temperature of the concrete load within the truck-mounted concrete mixer drum; a wireless transmitter mounted to the mixer drum on the truck and communicative with the processor and temperature sensor, the wireless transmitter being effective for transmitting to the processor a signal corresponding to the temperature of the concrete in the mixer drum as detected by the temperature sensor; the vibration sensor mounted to the drum or truck and communicative with the processor to deliver signals indicative of vibration in response to truck, truck engine or drum motion; the processor periodically receiving vibration signals from the vibration sensor, and, during periods of detected vibration, obtaining a temperature reading from the temperature sensor and causing the transmitter to transmit the temperature reading, and in the absence of detected vibration, the processor entering a power consumption mode to conserve energy.