Hot Gas Bypass Capacity Regulators are used in refrigerator system. It controls a plurality of circuits, each circuit having at least one refrigeration case and an electronic evaporator pressure regulator in communication with each circuit. Each electronic evaporator pressure regulator controls a temperature of one of the circuits. A sensor in communication with each circuit measures a parameter from the circuit. A controller associated with each electronic evaporator pressure regulator controls the respective electronic evaporator pressure regulator based upon measured parameters from each of the circuits.

Hot Knife Cutting Machines is a microprocessor controlled cutting machines. It measures and cuts almost any type of synthetic strip material from thin ribbons to heavy webbings with an electrically heated, compressed air driven knife. An extractor fan is built into the machine for exhausting the fumes generated by the melting material.