Illinois Tool Works Inc.

Juan Guerrero

Steven Bernard Heymann

Aleksey Klochkov

Edward Anthony Oldynski

Gee Kuen Chong

Jonathan William Medley

Leena Patel

Yasamin Moazami

Heath A Weaver

Ryoko Nakai

Joseph Cassio

Qingming Zhu

Eric Hu

Jesse Jacobsen

Mai Arai

Suet C Yeung

Stephen Holmbo

Tetsuya Kobayashi

Julian A Codelli

Michael Graupe

Masaaki Sawa

Hirokazu Matsumoto

Jie Xu

Ionizing blower

Automatic emitter point cleaners are disclosed. An automatic emitter point cleaning system includes: a fan configured to direct a stream of air through an air path; a point emitter configured to produce at least one of positive ions or negative ions within or proximate to the air path; a brush; a first gear coupled to the brush and configured to move the brush into contact with the point emitter; a second gear to engage the first gear; and a motor to actuate the second gear such that the second gear actuates the first gear to move the brush past the point emitter.

Automatic emitter point cleaners

Ionizing bar

An example apparatus for charge neutralization includes: a first emitter nozzle; a power supply configured to supply a high frequency alternating current (AC) signal to the first emitter nozzle; control circuitry configured to: provide a polarity signal to the power supply to generate a DC offset signal, wherein a combination of the high frequency AC signal and the DC offset signal causes the power supply to output a positive ion generation pulse or a negative ion generation pulse; control the polarity signal to cause the power supply to provide a period of positive ion generation and a period of negative ion generation; determine a balance voltage at an output of the first emitter nozzle; and control the polarity signal to adjust a relative durations of the period of positive ion generation and the period of negative ion generation based on the balance voltage.

Methods and apparatus for adaptive charge neutralization

Growing community of inventors

Berkeley, CA, United States of America

Juan Guerrero