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Publication numberUS935457 A
Publication typeGrant
Publication dateSep 28, 1909
Filing dateApr 30, 1907
Priority dateApr 30, 1907
Publication numberUS 935457 A, US 935457A, US-A-935457, US935457 A, US935457A
InventorsJames Howard Bridge
Original AssigneeJames Howard Bridge
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for electrically treating air and other gases.
US 935457 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



Patented Sept. 28, 1909. 38HEE'1'8-SHIEET 1.




Patented Sept 28, 1909. sauna-51mm a.




I Patented Sept. 28, 1909.



WITNESSES nuns now'nnn names, or rmnnnmm rmmsxnvmm.


Be it known that I, JAMES Howm BRIDGE, a subject of the King of England, but having declared my intentlon of becoming a cit1- zen of the United States, and now-residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania,

I electrically treatingai'r or other have invented certain new and useful Improvements in Apparatus forv Electrically" Treating Air and-other Gases, of whichthe followrng 1s a specification.

rMy invention has relation to means for in such connection it relates to various forms of ozone-producing a paratus ada ted for.

the conduct of the mo e of electrica, y treating 'air or other gases as described and claimed in United States Letters Patent granted to me under the .No. 832,767 dated October 9th, 1906.

f In particular the present invention relates to ozonlzing apparatus, comprising means for conducting air or other gases transversely through an electrode, in finely divided Y streams substantially in the path of multitudinous electric dlscharges, so that each minute air stream issurrounded by one or more electric discharges, to insure an intimate contact, of the an orother gases with such electric discharges. The princi al ob ects of. m present invention are, rst, to convert t e oxy en of the air into ozon'e by means of ane ectric discharge, or to modify other gases by conductin the same from one side of a perforate means to the other side through the perforations, thus projecting or drawing them substantially .into the electric discharges passing between such perforated means and other'means; second to guide the air or other gas so that the same 15 subdivided into smallstreams, and each stream passed substantially into the path of'electric discharges at the place on the electrode near where the ,discharges originate; third-,to so wadjust the electrical means that discharges takeplace thereon at points surrounding the perforations through which air or gas is sopassed, in minute streams, so that each stream passes substantially into the core of'a discharge; fourth, to interpose bafiies, checks or other guides in the air or as currents,-to prevent their reaching the dischargin surfaceof an electrode, except throng the perforated body of such electrode and to cause such air c'urrentsto pass into and out Application filed April 80,


Specification Letters Patent. Patented Sept. 2S, 1909.

1m; sex-m Ho. 371,0. I

of discharges occurrin thereon; fifth, to

pass the air or gas'in ne streams through the perforations of an electrode directly into the core of multitudinous discharges originatin thereon, and then to lead it out of the in uence of the discharges by passing:it through perforations of the same electrode or of an opposin electrode; sixth, to sassair or other gas a ong the surface of. a

ischarging electrode so as to draw additional air or gas, by as iration, through perforations in the said e ectrode from the ses; and

opposite side thereof, to be o'zonized; seventh,

to prevent the formation of arc and spark discharges in .an ozonizer, comprising one or more perforated electrodes, by interposing a dielectric body between said electrodes;

and eighth, to place in the electric current of an ozonizercomprising one or more perforated electrodes, means for preventing the-formation of arcs and sparks, and substantially restricting the apparatus to the production of the silent brush discharge.

The nature and scope of my present in.- vention will be understood by reference to the accompanying drawings, forming part vention, in application.

Referring to the drawings with reference to Fig. 1, l is a tubular perforated electrode within a containing electrode 2, near which a dielectric body 3, is placed. The perforated electrode 1, is closed at 4, so that air or gas admitted at the open end 5 is forced through the perforations 6, and after passing through the electric discharges t-akingplace near the-rims of said perforations, escapes at 7, as indicated'by the arrow. The course of the air may be reversed, by simply running thesame in opposite directions as will be apparent from the arrangement of .parts in said figure.

With reference to Fig. 2, 2 is a tubular perforated electrode, inclosing a similar tubular-perforated electrode 1. .Air passes perforated electrode 1.

in at 5, and flows through the perforations 6, directly into the discharge passing between the electrodes 1 and 2, and then passes out of the discharge througliethe perforations 8. At the points marked 3'and {1, are

bodies interposed to prevent the passage of air or gas, except-as indicated. It is also apparent that the course of the air streams through the apparatus of'this figure may be reversed.

With reference to Fig. 3, 1 and 2 are perforated electrodes properly insulated by in-' perforations 6, to be electrified by the dis- 1 charges passing between the electrodes 1 and 2, and escapes ozonized at 7. Air entering at 5, draws additional air by aspiration through the perforations 6, in the electrode 1, from the inner or under side thereof.

With reference to Fig. 5, 1 is a flat perforated electrode separated from an opposed electrode 2, by an insulating body 3, which .also serves to prevent the admission of air or gas to the dischar es passing between 1 and 2, except througi the perforations 6. After ozonization the air escapes at 7.

Withreference to Fig. 6, 2 is an electrode opposed to a perforated elect-rode 1, and separated therefrom by an insulating body 3, Air is passed through the opening 5, into the discharges passing between 1 and 2, and out of the samehy the perforations (l, and emerging from the apparatus at 7. The

respective positions of the electrodes may be reversed.

With reference to Fig. 7, 1 is a perforated electrode inclosed by a solid electrode 2, which also forms part of a chamberlO, con-. taining a cooling fluid. The electrodes in each of the foregoing cases, may be fiat, curved or tubular.

With reference to Fi s. 8 and 9, 6 are perforations, which may he used, in carrying out one of the features of my present invention. In particularly Fig. 8, the perforations 6, are surrounded by elevated points.

or projections, at the terminals of which electric discharges occur, when the apparatus;1s in action. In particularly Fig. 9', is

indicated a wire-gauze, the openings 6, of

which serve the function of perforations, while the," raised metallic parts adjacent thereto, serve as points of discharge for the electric current passing between said gauze and'a second electrode, not shown.

With reference-to Fig. 10, the ozonizingapparatus previously described is shown asstruction may be placed in the circuit at this point to regulate and equalize the current. In the ozonizer 15, the silent brush discharge is produced, and polymerizes the oxygen passed into its influence through the perforations of the electrodes already described. t V

The use in the circuit supplying ozone apparatus of condenser to raise the voltage and resonator or choke-coils -to multiply the electrical vibrations, or to regulate the current, is old in the art, and no claim to novelty is here made in this connection; but their application to controlling or regulating dis charges passing between perforated electrodes of the land herein described is new, and the claim to novelty herein made is in respect to this combination. I

The operation of the apparatus hereinbefore described is the same as to all the different forms ofsuch apparatus, whether theair or gas is drawn, sucked or forced through parent to those skilled i the art to which this invention appert-ain without further description of such operations.

Having thus described the nature and objects of my invention what I claim as new and desire to secure by Letters Patent is:- 1. An .ozonizer, containing a tubular electrode having a' plurality of perforations through which air or gas may be passed in fine streams from one side of the electrode to the other, substantially into a multiplicity of electric discharges originating on the surface of said electrode at points adjacent to said perforations, so that the separate asthe same, in either direcEon, as will'be aptreams may be substantially surrounde by 2. An ozonizer, containing a perforated electrode adapted to allow air or other gas to ass into a plurality of discharges originatmg thereon, and then to be led throu h the said perforations in fine streams to t 1e other side of the electrode ence of said discharges.

3. An ozonizer, containin an electrode having a multiplicity 0 through the walls thereof, for the passage of air or other'gas in fine streams from one .side of the electrode-to the other, so that each stream is substantially surrounded byout of the influperforations discharges originating around said perforations and in close proximity thereto, in comv bination with means for reuniting the separate gas streams and leading them ,out of the discharges. p 4. An ozonizer, comprising perforated electrodes so arranged in relation to each other that air or other gas under treatment is forcedto pass in multitudinous streams through perforations'into the interior of annular discharges originating around said perforations, so as to be brought into intimate contact with said dischar es, in combi nation with means for reuniting the sepafrom the discharge.

rate gas streams and leading them away 5. An ozonizer,-comprising a perforated tubular electrode lnclosed. 1n a second tubular electrode and so arranged that an-electric discharge passing between the said-electrodes assumes a substantially annular form around the perforations in said electrode to more or less surround air or gas passing therethrough.

-6. An ozonizer formed of concentric tubular electrodes, containing perforations in the walls thereof through which air or other gas may pass in fine streams so that each air stream is substantially surrounded b electric discharges passing between sai electrodes.

7. An ozonizer, containing a perforated tubular electrode so arranged in relation to from the other side 'of such electrode, through the perforations therein, to be thusair supply that air-under treatment said electrodes. U

11. An ozonizer, comprising aperforated. perforated air supply and means of producing the silent electric discharge that the said discharge proceeds to or fromtherims of-the perforations in said electrode, and more or less sur- -rounds the currents of air or other gas passing theret-hrough. V

8. An ozonizer, comprising electrodes so arranged in relatioig' to each other and to the passes through perforatlons in the walls'o sald electrodes, so as to be broughtinto contact: with electric discharges passing between said electrodes. 9. An ozonizer, comprising one or more perforated electrodes, and means for leading air-or other gases along the surface of one of said electrodes in such way as to draw by aspiration additional air in fine streams brought into the influence of the discharges passing between said electrodes.

10. An ozonizer, comprising perforated electrodes through which, in succession, air or other gas may be passed in finest-reams, while each stream. is substantially surround: ed by electric dischargespassing between electrode opposite to a secondelectrode, and means-for causing air or other gas to pass-in fine streams'through the perforations of'one' electrode and then in fine streams through'the perforations of the op posed electrode, while substantially sur-. v rounded by electric discharges passing between said electrodes. Y 12. An ozonizer,- consisting of an electrode opposed to a' second electrode with perforated walls, and means for directing air or other 7 throng the perforations of the secondelectrode, in fine streams, so that each stream" is more or less surrounded by electric I d1s as between the electrodes and-then charges occurring at .or adjacent to therims of said perforations.

13. In an ozonizer contalning a perforated electrode through which the air passes and 16; An ozonizing apparatus comprising an electrode containing perforations adapted to I permit the passage of air or other gas, in fine streams, through the ame directly intodischarges passing betwe u said electrode anda second electrode, and then out of the discharges through perforations in the sec-- ond electrode, in combination with a condenser in shunt-to increase the voltage of the current and a resonator in series in the circuit to multiply the electricvibrations passingtherethr ugh. i

17'. An ozonizer comprising the combination of a hollow electrode provided with perpasses and at' forations through which air the rims of which the electrical dlscharge occurs, a tubular electrode surrounding the first named electrode and from which the ozonized air is withdrawn, electrical connections for the electrode, and a dielectric interposed between said electrodes, substantially as described.

18. An ozonizer comprising a hollow -electrode with perforations thmu h which air passes and at the rims of which electrical discharges occur, a second. tubularelectrode surrounding the first named electrode and,

provided wlth a dielectric applied to its sur-' face and from which ozonized air is Wltl'ldrawn, and electrical connections for the electrodes, substantially as described.

' 19. In, an ozonizer a hollow electrode through which air is fed and which'fls pro-' -vided with perforations, and from the rims of which silent or brush electrical discharges my signature in the presence of two suboccur, 1n comblnatlon with means for proscr1b1ng witnesses.

ducin such electrical dischar 'es and leadw J *1 I ing 0 the ozonized air transersely of the JAMES HOWARD BRIDGE .5 discharges whereby intimate contact is in- \Vitnesses:

sured, substantially as described. EMMA D. CHAPPELL,

In witness whereof, I have hereunto set THOMAS M. SMITH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2532016 *Jun 5, 1945Nov 28, 1950William DubilierElectrical liquid treating device
US2589613 *Jun 19, 1950Mar 18, 1952IonicsIon controller
US3023155 *Mar 16, 1960Feb 27, 1962Castor Wilbur WOzone generator
US3259783 *Feb 14, 1964Jul 5, 1966Thorn A E I Radio Valves & TubIndirectly-heated cathode assemblies
US3690043 *Nov 24, 1969Sep 12, 1972Futterer BodoElectrofilter for gases
US4383976 *Apr 1, 1980May 17, 1983Notaro Salvador POzone-generating assembly
US4603031 *May 28, 1985Jul 29, 1986Gelbman Howard AOzone generator
US5409673 *Feb 10, 1992Apr 25, 1995O'three LimitedOzone generator having an electrode formed of a mass of helical windings and associated method
US5427693 *Apr 19, 1993Jun 27, 1995O-Three LimitedModular ozone water treatment apparatus and associated method
US5433927 *Apr 16, 1993Jul 18, 1995Figgie InternationalOzone generator having a conductor with projections extending through an inner electrode and associated fabrication method
US5554344 *May 11, 1994Sep 10, 1996Duarte; Fernando C.Gas ionization device
US5554345 *Oct 13, 1993Sep 10, 1996Novozone (N.V.) LimitedOzone generation apparatus and method
US5573733 *Dec 7, 1992Nov 12, 1996Poptec LteeInner electrode for an ozone generator, ozone generator containing said electrode and method of use of said ozone generator
US6228330 *Jun 8, 1999May 8, 2001The Regents Of The University Of CaliforniaAtmospheric-pressure plasma decontamination/sterilization chamber
US8293171 *Apr 27, 2010Oct 23, 2012Gerald D. HavenBio turbo technology of removing ethylene gas
US20070071658 *Nov 16, 2006Mar 29, 2007Kasten Stephen PCorona discharge ozone generator
US20110262302 *Apr 27, 2010Oct 27, 2011Haven Gerald DBio turbo technology of removing ethylene gas
WO2000074730A2 *Jun 8, 2000Dec 14, 2000Univ CaliforniaAtmospheric-pressure plasma decontamination/sterilization chamber
Cooperative ClassificationC01B13/11