Method and apparatus for electric treatment of substrates

Details Method and apparatus for electric treatment of substrates Method and apparatus for electric treatment of substrates

2006-05-12

2009-06-30

Chiesa, Richard L (Department: 1797)

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Producing or treating porous product

C055S524000, C055S528000, C055SDIG007, C055SDIG039, C095S057000, C095S059000, C096S015000, C096S069000, C264S484000, C264SDIG048, C307S400000, C442S082000, C442S088000

Reexamination Certificate

active

07553440

ABSTRACT:
Methods and apparatus for hydrodischarging and hydrocharging substrates and articles to produce enhanced ability to avoid attraction of contaminants or improved capability of removing contaminants from fluids are disclosed. In another form the method involves removal of electric charges or neutralization of charge on or within substrates. Also disclosed are methods of making using electret substrates and articles for removing particulates and mists from fluid streams.

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