Milliken + Co

Milliken Research Corporation

David M Hyslop

Rajib Mondal

Franklin Sadler Love, Iii

Frank Mark Pitman

Jeffrey J Lillie

Franklin S Iii Love

Frank M Pitman

A liquid jet printing apparatus is provided having a nozzle for emitting a stream of liquid droplets toward a substrate, a charging section for providing an electrical charge to liquid droplets and a pair of electrically conductive deflection plates for creating an electrical field capable of deflecting the liquid droplets to a desired location on the substrate, wherein a resistor is provided between a power source and the electrical field to limit current from the power source during electrical arcing between the deflection plates, thereby minimizing disruption to the electrical field and minimizing electromagnetic pulses.

Resistor protected deflection plates for liquid jet printer

A method and apparatus to input two dimensional points in space into a computer. Such points in space reside within the field of view of a video camera, which is suitably connected to a computer. The operator aims a focus of light at the point whose coordinates are desired and depresses a trigger button mounted proximate to the light source. The trigger actuation signals the computer to capture a frame of video information representing the field of view of the camera, and with appropriate software, identifies the picture element within that frame that has the brightest value by comparison with the field of view without the focus of light. This picture element will be the one associated with the point within the field of view upon which the spot of light impinged at the time the trigger button was depressed. The actual digital coordinates of the point are identified and then calculated based upon a previously established relationship between the video frame and the camera field of view.

Method and apparatus for entering coordinates into a computer

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Roebuck, SC, United States of America

David M Hyslop