Eastman-kodak Company

Edward J Sullivan

Trevor T Charvat

John P Marcelletti

Dennis A McIntyre

William D Thomas

Aaron Novack

Cheng Hu

Xuefei Tan

A power supply adapted for use with a corona charger. The power supply includes a first DC power source providing an electrical potential above a predetermined reference potential, and a second DC power source providing an electrical potential below such predetermined reference potential. A main circuit having an output adapted to be connected to a corona charger, includes a switching circuit for selectively turning the first and second DC power sources on and off in a manner so as to provide a an electrical potential having an AC waveform output for the main circuit.

Bipolar-duty cycle controllable DC corona power supply

The system and method of the present invention senses the time that it takes an automatic machine to assemble two or more parts and compares that time against a know time for correctly assembled parts. If the sensed time varies from the known time the attempted part assembly is rejected. A linear signal transducer is coupled to an assembler portion of the automatic machine to provide a signal indicative of the time it takes for the assembler portion to traverse its assembly distance. The provided signal is compared against a predetermined threshold signal for purposes of determining a variance corresponding to a defect in the assembly process.

System and a method for detecting a malfunction in the operation of a

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Canandaigua, NY, United States of America

Edward J Sullivan