Patent ID: 8976029
Filing Date: 2015-03-10
Classification: F25D,G06Q,H04Q

Abstract:
1. A product management system comprising: a container; a radio frequency identification (RFID) reader located a distance from the container; a weight-sensing RFID tag wholly contained within a bottom portion of the container, the RFID tag providing information regarding a weight of a quantity of a product in the container, the weight-sensing RFID tag being an integrated package comprising an antenna, an integrated circuit, at least two layers or films, and an elastic structure separating the at least two layers or films, the at least two layers of films and elastic structure cooperating to determine the weight of product in the container by the elastic structure physically changing the at least two layers of film relative to the weight of product in the container, wherein responsive to receiving a signal from the RFID reader, the antenna transmits a signal to the RFID reader that is indicative of the separation of the at least two layers or films which, in turn, is indicative of the weight of product in the container; wherein, in operation, the RFID reader transmits a signal to the RFID tag and responsive to the signal, the RFID tag transmits information to the RFID reader regarding the weight of a quantity of product in the container, the RFID reader receiving the information from the weight-sensing RFID tag to determine the weight of a quantity of product in the container.