Davis Josh,Jensen Jeffrey,ZhiGuo Li (Henry),Ren Hua (Kevin)
申请号：
US201414331186
公开号：
US10005084(B2)
申请日:
2014.07.14
申请国别(地区):
美国
年份:
2018
代理人:
Sheridan Ross P.C.
摘要：
An article destruction device includes an electric motor driving at least one moving component. An indication panel includes at least three visual indicators situated in sequence. Each visual indicator is associated with a stage of an approaching overload (motor cool down) condition. A first visual indicator lights when the motor or corresponding sensor temperature is below a first threshold, i.e., when the device is first powered on. A second indicator lights when the temperature exceeds the first threshold and is below at least a second threshold, i.e., the temperature is approaching a fault condition. A last visual indicator lights when the temperature exceeds the first and the at least second thresholds, i.e., the fault condition is met. A thermistor on the motor energizes (self-heats) with the motor. A thermostatic switch controls current flow through windings of the motor depending on measured temperatures meeting operating and equilibrium temperature thresholds.
