A cylindrical oil contamination collector for removal of ultra-fine particulate includes a rectangular and continuous length of single-sided, corrugated, phenolic coated paper overlaid with three rectangular electrodes affixed thereto in a spaced-apart, side-by-side arrangement. Two of the electrodes...http://www.google.com.au/patents/US7744739?utm_source=gb-gplus-sharePatent US7744739 - Spiral-wound cylindrical electrostatic oil cleaner
