Electricity: electrical systems and devices – Electric charging of objects or materials
Patent
1993-09-10
1997-01-07
Fleming, Fritz M.
Electricity: electrical systems and devices
Electric charging of objects or materials
361229, H05F 300
Patent
active
055923577
ABSTRACT:
A pair of electrodes are biased to produce an electrostatic discharge while placing a thin non electron absorbing gas layer near one or both of the electrodes which are used to develop the electric field. As a result, atmospheric oxygen, water vapor and other contaminants are removed from the regions surrounding the electrodes, allowing ionization to occur more easily. This is accomplished with an electrode structure including a hollow tube for receiving a gas, a plurality of apertures extending through the hollow tube for delivering the gas to the surface of the hollow tube, and the application of a biasing voltage for producing an electrostatic discharge in the presence of the gas. The tube can take the form of a longitudinally extending structure, or a hollow shell, depending upon the configuration of the electrostatic charging apparatus with which the electrode structure is used.
REFERENCES:
patent: 1169428 (1916-01-01), Rogers
patent: 1394064 (1921-10-01), Chapman
patent: 2327695 (1943-08-01), Beregh
patent: 2333213 (1943-11-01), Slayter
patent: 2740184 (1956-04-01), Thomas
patent: 3111605 (1963-11-01), Muller et al.
patent: 3308344 (1967-03-01), Smith et al.
patent: 3643128 (1972-02-01), Testone
patent: 4048364 (1977-09-01), Harding et al.
patent: 4088731 (1978-05-01), Groome
patent: 4215682 (1980-08-01), Kubik et al.
patent: 4239973 (1980-12-01), Kolbe et al.
patent: 4375718 (1983-03-01), Wadsworth et al.
patent: 4513049 (1985-04-01), Yamasaki et al.
patent: 4534918 (1985-08-01), Forrest, Jr.
patent: 4588537 (1986-05-01), Klasse et al.
patent: 4592815 (1986-06-01), Nakao
patent: 4626263 (1986-12-01), Inoue et al.
patent: 4874659 (1989-10-01), Ando et al.
patent: 4904174 (1990-02-01), Moosmayer et al.
patent: 4997600 (1991-03-01), Okumura et al.
patent: 5051159 (1991-09-01), Togashi et al.
patent: 5116444 (1992-05-01), Fox
patent: 5122048 (1992-06-01), Deeds
patent: 5227172 (1993-07-01), Deeds
patent: 5244482 (1993-08-01), Hassenboehler et al.
patent: 5401446 (1995-03-01), Tsai et al.
Adams, J. W. C., "Specialty Nonwovens with Enhanced Filtration Performance", INDA Association of the Nonwoven Fabrics Industry (undated).
Ando, Katsutoshi, "Synthetic Electret Filter Media for HEPA Filtration", INDA Association of the Nonwoven Fabrics Industry (undated).
Szuchi, Edward, "Contribution to the Production of Melt-Blown Nonwovens", Mellian English Apr. 1991--Translation of Melliland Textiberichte 72 (1991), p. 270.
Van Turnhout, J., "Electret Filters for High-Efficiency Air Cleaning" Journal of Electrostatics, 8 (1980), pp. 369-379.
Alexeff Igor
Rader Mark S.
Tsai Peter P.
Wadsworth Larry C.
Fleming Fritz M.
The University of Tennessee Research Corp.
LandOfFree
Electrostatic charging apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrostatic charging apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrostatic charging apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1769759