Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1989-02-24
1989-12-12
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
204286, 204290R, 422 22, A61L 200
Patent
active
048865931
ABSTRACT:
A method of killing bacteria or inhibiting growth of bacteria especially in a potable water supply or a hot water supply for personal washing purposes, comprising subjecting the water to an electrostatic effect of sufficient intensity to kill or inhibit the growth of bacteria, and a device for carrying out the method; said device being preferably located in the elbow of a water pipe so as to extend along an adjacent pipe length and comprises a cylindrical collar 1 mounted on the exterior of ducting means (13 or 12') and preferably at an elbow region (11 or 11') with said collar 1 having a passage therethrough and leading to a passage in the ducting means, an elongate tubular housing 3, preferably of polypropylene, closed at one end 4 and having at its other end, a flange 3' abuttable against the shoulder 2 or collar 1 via the intermediary of sealing means 5, and a close fitting electrode 7, preferably of solid copper or brass, insertable into said housing 7 via the opening of the collar 1 and having terminal means 7' for connection to a high voltage source which is also connectable to the ducting means to provide an electrostatic field in the water and preferably a flow of a few milliamps.
REFERENCES:
patent: 1934703 (1933-11-01), Golden
patent: 1987665 (1935-01-01), Brunner
patent: 2428328 (1947-09-01), Ham et al.
patent: 4545887 (1985-10-01), Arnesen et al.
patent: 4822473 (1984-04-01), Arnesen
Leader William T.
Niebling John F.
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