20150245729 | CARBON FIBER HEATING ELEMENT - This invention relates to a heating element that includes a carbon fiber tow having carbon threads enclosed between semi-rigid laminates, wherein each thread has an electrical resistance in the range of less than 0.25 to 0.50 ohm per centimeter, and wherein the threads are connected in electrical parallel and terminated into a copper braid, whereupon the application of a voltage generates heat for use in a wide range of appliances including a portable food warmer having a chafing pan and wherein the heating element is electrically connected to a power source controllable through one or more sensors for measuring the temperature of the chafing pan interior. | 09-03-2015 |