Abstract: A heat retentive, temperature self-regulating, food retaining apparatus (10) includes a body (12), heat retentive core (14) and magnetic induction heating element (16). The body (12) includes a substantially rigid, heatable, food-contacting wall (18) defining a cavity (24). The core (14) is positioned in the cavity (24), and in thermal contact with the wall (18) for selective heating of the wall (18). The core (14) includes a solid state phase change material for storing latent heat during a solid-to-solid phase transformation at a phase transformation temperature. A resilient material is in contact with the phase change material to permit expansion of the phase change material during a phase transformation. The heating element (16) is in thermal contact with the core (14) for heating the core (14) to a temperature above the phase transformation temperature to effect a phase transformation in the phase change material.
Abstract: A device is disclosed for interfacing with a variety of transducer types to generate a measurement value of a certain property. The device has at least one sensor block that in turn has at least one sensor channel containing sensor circuitry. The sensor circuitry is configured to cooperate with a particular transducer to generate an electrical signal representing the property. Connected to the sensor block is a control block. The control block has configuration circuitry for enabling the sensor circuitry. Additionally, the control block contains conversion circuitry for converting the signal to the measurement value using a conversion equation. A user interface provides the means for inputting configuration information and outputting the measurement value. In one embodiment, the sensor block also contains a multiplicity of sensor channels and multiplexing circuitry for enabling the control block to address each sensor channel individually.