Patent ID: 11945175
Assignee: AMERIGLOBE, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 8:
9. A system for temperature sensing and control during a heat sealing process, the system comprising:
a) a controller;
b) a converter;
c) a power source;
d) a heat seal bar including a heating element;
e) a sensor that is adapted to be positioned on the heat seal bar so that it is in contact with the heating element during a calibration cycle and adapted to be removed from the heat seal bar after the calibration cycle;
f) wherein the controller is adapted to provide calibration values during the calibration cycle based on temperature values of the heating element received from the sensor and electrical resistance values of the heating element when the sensor is positioned on the heat seal bar;
g) wherein the power source is adapted to provide power to the heating element during a heat seal cycle to heat the heating element, and wherein the sensor is not on the heat seal bar during the heat seal cycle;
h) wherein the converter is adapted to process voltage and current feedback signals received from the heat seal bar during heating in step “g”, which the controller uses to calculate real-time electrical resistance of the heating element during the heat seal cycle; and
i) wherein the controller is adapted to calculate a temperature of the heating element while being heated during the heat seal cycle based on the real-time electrical resistance of the heating element and calibration values.