US Patent 10376109 Paper product dispenser

A paper product dispenser that includes a toilet paper spindle adapted to hold and dispense a toilet paper roll, at least one motor connected to the toilet paper spindle, a controller connected to the motor, and a thermopile sensor in communication with the controller, the thermopile sensor comprising a plurality of thermocouples that form a junction A and a junction B, wherein when the thermocouples sense thermal radiation, thermal gradient between junction A and junction B is created, the thermal gradient generating an electrical signal that the thermopile sensor sends to the controller.