Personal electro-kinetic air transporter-conditioner

Information

  • Patent Grant
  • 6632407
  • Patent Number
    6,632,407
  • Date Filed
    Monday, September 25, 2000
    24 years ago
  • Date Issued
    Tuesday, October 14, 2003
    21 years ago
Abstract
A personal electro-kinetic electrostatic air conditioner includes a self-contained ion generator that provides electro-kinetically moved air with ions and safe amounts of ozone, and includes a water retaining element to increase humidity of the output air flow. The ion generator includes a high voltage pulse generator whose output pulses are coupled between first and second electrode arrays. Preferably the first electrode array includes first and second pointed electrodes, and the second electrode array includes annular-like electrodes having a central opening coaxial with the associated pointed electrode. The surface of the annular-like electrodes is smooth and continuous through the opening and into a collar region through which the air flows. A water retaining member is disposed surrounding the output airflow to increase humidity of the output air, which is substantially cleansed of particulate matter, and contains safe amounts of ozone.
Description




FIELD OF THE INVENTION




This invention relates to electro-kinetic conversion of electrical energy into fluid flow of an ionizable dielectric medium in which an electro-kinetically produced flow of air is created, the air containing safe amounts of ozone and from which air particulate matter has been substantially removed, and more particularly to portable such units adapted for use in a confined area in which some degree of humidity control is desired.




BACKGROUND OF THE INVENTION




The use of an electric motor to rotate a fan blade to create an air flow has long been known in the art. Unfortunately, such fans produce substantial noise, and can present a hazard to children who may be tempted to poke a finger or a pencil into the moving fan blade. Although such fans can produce substantial air flow, e.g., 1,000 ft


3


/minute or more, substantial electrical power is required to operate the motor, and essentially no conditioning of the flowing air occurs.




It is known to provide such fans with a HEPA-compliant filter element to remove particulate matter larger than perhaps 0.3 μm. Unfortunately, the resistance to air flow presented by the filter element may require doubling the electric motor size to maintain a desired level of airflow. Further, HEPA-compliant filter elements are expensive, and can represent a substantial portion of the sale price of a HEPA-compliant filter-fan unit. While such filter-fan units can condition the air by removing large particles, particulate matter small enough to pass through the filter element is not removed, including bacteria, for example.




It is also known in the art to produce an air flow using electro-kinetic techniques, by which electrical power is directly converted into a flow of air without mechanically moving components. One such system is described in U.S. Pat. No. 4,789,801 to Lee (1988), depicted herein in simplified form as

FIGS. 1A and 1B

. Lee's system


10


includes an array of small area (“minisectional”) electrodes


20


that is spaced-apart symmetrically from an array of larger area (“maxisectional”) electrodes


30


. The positive terminal of a pulse generator


40


that outputs a train of high voltage pulses (e.g., 0 to perhaps +5 KV) is coupled to the minisectional array, and the negative pulse generator terminal is coupled to the maxisectional array.




The high voltage pulses ionize the air between the arrays, and an air flow


50


from the minisectional array toward the maxisectional array results, without requiring any moving parts. Particulate matter


60


in the air is entrained within the airflow


50


and also moves towards the maxisectional electrodes


30


. Much of the particulate matter is electrostatically attracted to the surface of the maxisectional electrode array, where it remains, thus conditioning the flow of air exiting system


10


. Further, the high voltage field present between the electrode arrays can release ozone into the ambient environment, which appears to destroy or at least alter whatever is entrained in the airflow, including for example, bacteria.




In the embodiment of

FIG. 1A

, minisectional electrodes


20


are circular in cross-section, having a diameter of about 0.003″ (0.08 mm), whereas the maxisectional electrodes


30


are substantially larger in area and define a “teardrop” shape in cross-section. The ratio of cross-sectional areas between the maxisectional and minisectional electrodes is not explicitly stated, but from Lee's figures appears to exceed 10:1. As shown in

FIG. 1A

herein, the bulbous front surfaces of the maxisectional electrodes face the minisectional electrodes, and the somewhat sharp trailing edges face the exit direction of the air flow. The “sharpened” trailing edges on the maxisectional electrodes apparently promote good electrostatic attachment of particular matter entrained in the airflow and help airflow. Lee does not disclose how the teardrop shaped maxisectional electrodes are fabricated, but presumably they are produced using a relatively expensive mold-casting or an extrusion process.




In another embodiment shown herein as

FIG. 1B

, Lee's maxisectional sectional electrodes


30


are symmetrical and elongated in cross-section. The elongated trailing edges on the maxisectional electrodes provide increased area upon which particulate matter entrained in the airflow can attach. Lee states that precipitation efficiency and desired reduction of anion release into the environment can result from including a passive third array of electrodes


70


. Understandably, increasing efficiency by adding a third array of electrodes will contribute to the cost of manufacturing and maintaining the resultant system.




While the electrostatic techniques disclosed by Lee are advantageous to conventional electric fan-filter units, Lee's maxisectional electrodes are relatively expensive to fabricate. Increased filter efficiency beyond what Lee's embodiments can produce would be advantageous, especially without including a third array of electrodes. Further, Lee's system does not provide for changing the moisture content of the output flow of air, and does not lend itself to being fabricated in a small form factor, for example hand holdable.




While a Lee-type system may be useful in a room, it does not lend itself to portability, for example for use in a confined relatively small area such as the seating compartment of a motor vehicle or an airplane.




Thus, there is a need for a portable electro-kinetic air transporter-conditioner that provides improved efficiency over Lee-type systems, without requiring expensive production techniques to fabricate the electrodes. Preferably such a conditioner should function efficiently without requiring a third array of electrodes. Such a conditioner should permit user-selection of safe amounts of ozone to be generated, for example to remove odor from the ambient environment, and should be implementable in a hand held form factor so as to be portable. Further, such a conditioner should permit increasing the moisture content of the output airflow.




The present invention provides a method and portable apparatus for electro-kinetically transporting and conditioning air.




SUMMARY OF THE PRESENT INVENTION




The present invention provides a preferably portable electro-kinetic system for transporting and conditioning air without moving parts. The air is conditioned in the sense that it is ionized and contains safe amounts of ozone, and, optionally, can benefit from augmented moisture content or aromatic content. Indeed users who are asthmatics may wish to provide the invention with an asthma inhalant that is added to the outflow of clean air, for their personal benefit.




Applicants' electro-kinetic air transporter-conditioner includes a housing with at least one vent through which ambient air may enter, and an ionizer unit disposed within the housing. The ionizer unit includes a high voltage DC inverter that boosts low voltage (e.g., perhaps 6 VDC to about 12 VDC) to high voltage DC, and a generator that receives the high voltage DC and outputs high voltage pulses. The high voltage pulses are perhaps 10 KV peak-to-peak, although an essentially 100% duty cycle (e.g., high voltage DC) output could be used instead of pulses. The unit also includes at least one and preferably two electrode assembly units, each unit comprising spaced-apart first and second arrays of conducting electrodes coupled between the positive and negative output ports of the high voltage generator. Preferably at least one moisture-containing member is disposed adjacent a downstream region of each second-array electrodes so as to increase humidity of the output airstream.




Preferably two electrode assemblies are used, in which each assembly is formed using first and second arrays of readily manufacturable electrode types. In one embodiment, the first array comprises wire-like electrodes and the second array comprises “U”-shaped electrodes having one or two trailing surfaces. In a preferred, even more efficient embodiment, each first array includes at least one pin or cone-like electrode and the second array is an annular washer-like electrode. The electrode assemblies may comprise various combinations of the described first and second array electrodes. In the various embodiments, the ratio between effective radius of the second array electrodes to the first array electrodes is at least about 20:1.




The high voltage pulses create an electric field between the first and second electrode arrays in each electrode assembly. This field produces an electro-kinetic airflow going from the first array toward the second array, the airflow being rich in preferably a net surplus of negative ions and in ozone.




Ambient air including dust particles and other undesired components (germs, perhaps) enter the housing through the input vent, and ionized clean air (with ozone) exits through openings on the downstream side of the housing. When the moisture-containing member is wet, the exiting air flow can have increased humidity.




The dust and other particulate matter attaches electrostatically to the second array (or collector) electrodes, and the output air is substantially clean of such particulate matter. Further, ozone generated by the present invention can kill certain types of germs and the like, and also eliminates odors in the output air. Preferably the transporter operates in periodic bursts, and a control permits the user to temporarily increase the high voltage pulse generator output, e.g., to more rapidly eliminate odors in the environment.




In one embodiment, the system includes an internal battery power supply and can be suspended by a cord from a user's neck, with the outflow airstream directly generally upward toward the user. This embodiment is especially useful in a confined area where the air might be stale or germ-laden, for example the seating compartment of an airline, or a bus. A similar embodiment can be used within and powered from the power supply of a motor vehicle, for example, from the cigarette lighter accessory plug of an automobile or truck. This embodiment includes an electronic timer that causes the system to operate for a predetermined time (perhaps half an hour) each time the power supply is turned-on, with an option for the user to cause the system to operate more than once per system turn-on. Alternatively a motion sensor switch comprising a sound or force detecting transducer and movable objects can turn-on the system whenever the vehicle in moving sufficiently to agitate the movable objects such that their vibration-motion is transducer detected.











Other features and advantages of the invention will appear from the following description in which the preferred embodiments have been set forth in detail, in conjunction with the accompanying drawings.




BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1A

is a plan, cross-sectional view, of a first embodiment of a prior art electro-kinetic air transporter-conditioner system, according to the prior art;





FIG. 1B

is a plan, cross-sectional view, of a second embodiment of a prior art electro-kinetic air transporter-conditioner system, according to the prior art;





FIG. 2A

depicts a preferred embodiment of the present invention worn on the person of a user;





FIG. 2B

depicts a preferred embodiment of the present invention used in a motor vehicle;





FIG. 2C

is a perspective view of the present invention;





FIG. 2D

is a breakaway perspective view of the present invention;





FIG. 3A

is an electrical block diagram of the present invention;





FIG. 3B

is a vibration-sensing module to activate the system of

FIG. 3A

, according to the present invention;





FIG. 4A

is a perspective block diagram showing a first embodiment for an electrode assembly, according to the present invention;





FIG. 4B

is a plan block diagram of the embodiment of

FIG. 4A

;





FIG. 4C

is a perspective block diagram showing a second embodiment for an electrode assembly, according to the present invention;





FIG. 4D

is a plan block diagram of a modified version of the embodiment of

FIG. 4C

;





FIG. 4E

is a perspective block diagram showing a third embodiment for an electrode assembly, according to the present invention;





FIG. 4F

is a plan block diagram of the embodiment of

FIG. 4E

;





FIG. 4G

is a perspective block diagram showing a fourth embodiment for an electrode assembly, according to the present invention;





FIG. 4H

is a plan block diagram of the embodiment of

FIG. 4G

;





FIG. 4I

is a perspective block diagram showing an especially preferred embodiment for an electrode assembly, according to the present invention;





FIG. 4J

is a detailed cross-sectional view of a portion of the electrode assembly embodiment of

FIG. 4I

;





FIG. 4K

is a detailed cross-sectional view of a portion of an alternative electrode assembly to the embodiment of

FIG. 4I

;





FIG. 4L

is a detailed cross-sectional view of a portion of a further alternative electrode assembly to the embodiment of

FIG. 4I

;





FIG. 4M

is a cross-section of a portion of the second array electrode shown in the embodiment of

FIG. 2D

; and





FIG. 4N

is a detailed cross-sectional view showing a further alternative electrode assembly to the embodiment of FIG.


4


I.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT





FIG. 2A

depicts a preferred embodiment of an electro-kinetic air transporter-conditioner system


100


suspected by a flexible cord


101


from the neck of a user. System


100


is formed within a housing


102


that preferably is a lightweight easily formed material, ABS plastic for example. Housing


102


includes ambient air intake vents


104


and at least one and preferably two output or exhaust vents


106


. Ambient air enters vents


104


and exits vents


106


, preferably with a higher moisture content, with at least some particulate matter in the ambient air removed (e.g., dust), and with safe amounts of ozone (O


3


). Housing


102


contains an ion generating unit


160


, powered from a battery source B


1


, also disposed within the housing. Ion generating unit


160


is self-contained in that other than ambient air, nothing is required from beyond the transporter housing for operation of the present invention.





FIG. 2B

depicts a system


100


mounted on or to the interior of a motor vehicle, for example, mounted with Velcro™ material (a closure including a piece of fabric of small hooks that sticks to a corresponding fabric of small loops) to the dashboard


109


of an automobile. In this embodiment, since the vehicle power supply is available, operating power to ion generating unit


160


preferably is obtained via an electrical cable


111


connected between a power inletjack J


1


on housing


102


and the motor vehicle cigarette light auxiliary power source


113


. System


100


in

FIG. 2B

may otherwise be identical to system


100


in

FIG. 2A

except that an optional mechanical motion detector


211


is included. Motion detector


211


is shown in detail in FIG.


3


B and advantageously can be used to power-on system


100


whenever the vehicle containing dashboard


109


is moving.





FIG. 2C

is a perspective view of system


100


and housing


102


. Internal to housing


100


, ion generating unit


160


includes a first array


230


of at least one electrode


232


and a second array


240


of at least one electrode


242


. The second array electrodes are disposed closer to outlet port


106


in the downstream direction from the first array electrodes, e.g., the air stream created by the present invention will flow generally from the first array electrodes toward the second array electrodes and then out of housing


100


via ports


106


. The first and second arrays of electrodes are coupled in series between the output terminals of ion generating unit


160


, shown and described with respect to FIG.


3


A. In the embodiment of

FIG. 2C and 2D

, the first array electrodes


232


are pointed elements, whereas the second array electrodes


242


are somewhat disk-like annular elements with a central opening, in which the first array electrode facing surface of the disk transitions smoothly and continuously into a collar that helps define the through opening in the disk. As will be described later herein with respect to

FIGS. 4K and 4L

, the profile of the collar may be parallel or somewhat cone-shaped, e.g., tending to converge toward the outlet opening.




Optionally, the present invention advantageously can augment moisture content in the output air flow and includes a moisture-retaining member


112


adjacent at least one outlet port


106


, preferably disposed as to present the least resistance to the outflow of air. In the preferred embodiment, moisture-retaining member


112


is a hollow collar-like cylinder, perhaps 0.125″ thick of ultra-high molecular weight polyethelene (UHMW) material, marketed under the trademark Porex™ (e.g., Porex™ UHMW X-4901), that the user will moisten with water. Such material has a polyethylene base and exhibits a wicking action, and can absorb and retain substantial amounts of moisture such as water.




In the embodiment of

FIG. 2B

, it may be desired to replace the moisture-retaining material with a scent-imparting material, that can freshen the air within the motor vehicle. If desired, an air humidifying and air scenting function can be employed by combining the Porex™ type material with a scene-imparting material.





FIG. 2D

is a breakaway view of the present invention. Housing


102


may (but need not be) formed with an upper member


119


that includes the intake vents


104


, a bottom member


121


that includes a battery hatch


123


, and a detachable front member


125


that includes output ports


106


and moisture-retaining and/or scent-imparting material


112


. The overall dimensions of housing


102


are not critical. In the preferred example, the overall thickness, top to bottom is perhaps 1″ (2.5 cm), the width is about 3.5″ (8.8 cm) and the length is perhaps 5″ (12 cm).




As will be described, when unit


100


is energized, e.g., by closing switch S


1


(or the equivalent, e.g., module


211


), high voltage output by ion generator


160


produces ions at the first electrode array, which ions are attracted to the second electrode array. The movement of the ions in an “IN” to “OUT” direction carries with them air molecules, thus electro-kinetically producing an outflow of ionized air. The “IN” notion in

FIG. 2A

denotes the intake of ambient air with particulate matter


60


. The “OUT” notation in the figures denotes the outflow of cleaned air substantially devoid of the particulate matter, which adheres electrostatically to the surface of the second array electrodes. In the process of generating the ionized air flow, safe amounts of ozone (O


3


) are beneficially produced. It may be desired to provide the inner surface of housing


102


with an electrostatic shield to reduces detectable electromagnetic radiation. For example, a metal shield could be disposed within the housing, or portions of the interior of the housing could be coated with a metallic paint to reduce such radiation.




As best seen in

FIG. 3A

, ion generating unit


160


includes a high voltage generator unit


170


for converting low input voltage, e.g., perhaps 6 VDC from a battery supply B


1


or perhaps 12 VDC from a vehicle battery into kilovolt level pulses. High voltage generator unit


170


preferably comprises a low voltage oscillator circuit


190


of perhaps 20 KHz frequency, that outputs low voltage pulses to an electronic switch


200


, e.g., a thyristor or the like. Switch


200


switchably couples the low voltage pulses to the input winding of a step-up transformer T


1


. The secondary winding of T


1


is coupled to a high voltage multiplier circuit


210


that outputs high voltage pulses. Preferably the circuitry and components comprising high voltage pulse generator


170


and circuit


180


are fabricated on a printed circuit board that is mounted within housing


102


.




Output pulses from high voltage generator


170


preferably are at least 170 KV peak-to-peak with an effective DC offset of perhaps half the peak-to-peak voltage, and have a frequency of perhaps 20 KHZ. The pulse train output preferably has a duty cycle of perhaps 10%, which will promote battery lifetime for the embodiment of FIG.


2


A. Of course, different peak-peak amplitudes, DC offsets, pulse train waveshapes, duty cycle, and/or repetition frequencies may instead be used. Indeed, a 100% pulse train (e.g., an essentially DC high voltage) may be used, albeit with shorter battery lifetime. Thus, generator unit


170


may (but need not) be referred to as a DC:DC high voltage pulse generator. Frequency of oscillation is not especially critical but frequency of at least about 20 KHz is preferred as being inaudible to humans.




As shown in

FIG. 3A

, the output from high voltage pulse generator unit


170


is coupled to an electrode assembly


220


that comprises a first electrode array


230


(that includes at least one first electrode


232


) and a second electrode array


240


(that includes at least one second electrode


242


). As further shown by

FIG. 3A

, ion generating unit


160


also includes circuitry


180


that can also include a timer circuit and a visual indicator such as a light emitting diode (LED) that can advise a user when ion generation is occurring. (Of course an audible signal could also or instead be used.) The timer can be set to function for a predetermined time when power is first applied (e.g., with switch S


1


), for example


30


minutes, and then turn-off system


100


. The user could of course again press S


1


to obtain another 30 minute outflow of ionized, cleaned air with increased humidity and/or scent. If desired, circuitry


190


and/or


200


could be caused to output a temporary burst of increased ionized air in response to user pressing of a control on housing


102


.




For the vehicle embodiment of

FIG. 2B

, a vibration sensor


211


as shown in

FIG. 3B

may be attached within housing


102


to turn-on system


100


whenever the vehicle in which system


100


is used is moving. Vibration sensor


211


comprises a sound or force detecting transducer


213


mounted to a small container


215


within which are metal BB's


217


or the like. Sensor


213


may be a Keyocera transducer having perhaps 20 mm diameter, and housing


215


may have a top-to-bottom depth of perhaps 10 mm. As housing


102


is vibrated by the moving vehicle, BB's


217


rattle around within container


215


and the resultant noise or physical impact with the transducer is detected by transducer


217


. Wires


219


couple the transducer output to the circuitry shown in FIG.


3


A. The result is that when system


100


is plugged into the vehicle cigarette lighter, even if switch S


1


is open, when the vehicle moves with sufficient vibration, the rattling BB noise causes transducer


213


to turn-on the electronics shown in FIG.


3


A. Preferably the electronics are thus turned-on for a predetermined time, e.g., 30 minutes. After 30 minutes the electronics can turn-off but when the vehicle against produces a sufficiently large vibration, system


100


will be turned-on for an additional 30 minutes.




In some modern vehicles, mechanical vibration is so small that it is desired to have system


100


activated automatically whenever ignition switch is turned-on. Thus, whenever the vehicle is started, system


100


will operate for a pre-determined time (e.g., perhaps 30 minutes or so, determined by circuit


180


) and then turn-off. The user can press S


1


(or an equivalent switch) to recycle system


100


to function for an additional 30 minutes, etc.




In the embodiment of

FIG. 3A

, the positive output terminal of unit


170


is coupled to first electrode array


230


, and the negative output terminal is coupled to second electrode array


240


. This coupling polarity has been found to work well, including minimizing unwanted audible electrode vibration or hum. An electrostatic flow of air is created, going from the first electrode array towards the second electrode array. (This flow is denoted “OUT” in the figures.) Accordingly electrode assembly


220


is mounted within transporter system


100


such that second electrode array


240


is closer to the OUT vents and first electrode array


230


is closer to the IN vents.




When voltage or pulses from high voltage pulse generator


170


are coupled across first and second electrode arrays


230


and


240


, it is believed that a plasma-like field is created surrounding electrodes


232


in first array


230


. This electric field ionizes the ambient air between the first and second electrode arrays and establishes an “OUT” airflow that moves towards the second array. It is understood that the IN flow enters via vent(s)


104


, and that the OUT flow exits via vent(s)


106


.




It is believed that ozone and ions are generated simultaneously by the first array electrode(s)


232


, essentially as a function of the potential from generator


170


coupled to the first array. Ozone generation may be increased or decreased by increasing or decreasing the potential at the first array. Coupling an opposite polarity potential to the second array electrode(s)


242


essentially accelerates the motion of ions generated at the first array, producing the air flow denoted as “OUT” in the figures. As the ions move toward the second array, it is believed that they push or move air molecules toward the second array. The relative velocity of this motion may be increased by decreasing the potential at the second array relative to the potential at the first array.




For example, if +10 KV were applied to the first array electrode(s), and no potential were applied to the second array electrode(s), a cloud of ions (whose net charge is positive) would form adjacent the first electrode array. Further, the relatively high


10


KV potential would generate substantial ozone. By coupling a relatively negative potential to the second array electrode(s), the velocity of the air mass moved by the net emitted ions increases, as momentum of the moving ions is conserved.




On the other hand, if it were desired to maintain the same effective outflow (OUT) velocity but to generate less ozone, the exemplary 10 KV potential could be divided between the electrode arrays. For example, generator


170


could provide +4 KV (or some other fraction) to the first array electrode(s) and −6 KV (or some other fraction) to the second array electrode(s). In this example, it is understood that the +4 KV and the −6 KV are measured relative to ground. Understandably it is desired that the present invention operate to output safe amounts of ozone. Accordingly, the high voltage is preferably fractionalized with about +4 KV applied to the first array electrode(s) and about −6 KV applied to the second array electrodes.




As noted, outflow (OUT) preferably includes safe amounts of O


3


that can destroy or at least substantially alter bacteria, germs, and other living (or quasi-living) matter subjected to the outflow. Thus, when switch S


1


is closed and B


1


has sufficient operating potential, pulses from high voltage pulse generator unit


170


create an outflow (OUT) of ionized air and O


3


. When S


1


is closed, LED will visually signal when ionization is occurring.




Preferably operating parameters of the present invention are set during manufacture and are not user-adjustable. For example, increasing the peak-to-peak output voltage and/or duty cycle in the high voltage pulses generated by unit


170


can increase air flowrate, ion content, and ozone content. In the preferred embodiment, output flowrate is about 200 feet/minute, ion content is about 2,000,000/cc and ozone content is about 40 ppb (over ambient) to perhaps 2,000 ppb (over ambient). As described herein, decreasing the second electrode/first electrode radius of curvature R


2


/R


1


ratio below about 20:1 will decrease flow rate, as will decreasing the peak-to-peak voltage and/or duty cycle of the high voltage pulses coupled between the first and second electrode arrays.




In practice, unit


100


is energized from B


1


or a vehicle battery, whereupon an output flow of clean ionized air is emitted from vents


106


. If member


112


is wet with water, the outflow of air will exhibit increased humidity. If member


112


is instead (or in addition) a material that imparts a scent, e.g., perhaps pine or mint odor, the outflow air will also smell fresh. The air flow, coupled with the ions and ozone freshens the air that the user adjacent the unit will breathe, and can be especially beneficial in a closed area such as an airline or motor vehicle passenger compartment. The ozone can beneficially destroy or at least diminish the undesired effects of certain odors, bacteria, germs, and the like. Further, the air flow is indeed electro-kinetically produced, in that there are no intentionally moving parts within the present invention. (As noted, some mechanical vibration may occur within some electrode configurations.) Preferably the present invention is used to output a net surplus of negative ions, as these ions are deemed more beneficial to health than are positive ions.




Having described various aspects of the invention in general, various embodiments of electrode assembly


220


will now be described. In the various embodiments, electrode assembly


220


will comprise a first array


230


of at least one electrode


232


, and will further comprise a second array


240


of preferably at least one electrode


242


. Understandably material(s) for electrodes


232


and


242


should conduct electricity, be resilient to corrosive effects from the application of high voltage, yet be strong enough to be cleaned.





FIG. 4A

depicts an electrode array


220


that is especially good for removing particulate matter (shown as


60


) from incoming ambient air in that the downstream electrodes


242


in second array


240


have relatively large collection surfaces


244


whereon particulate matter


60


can be electrostatically attracted and accumulated, until cleaned by the user. In this embodiment, electrode(s)


232


in the first electrode array


230


are wire or wire-like and are preferably fabricated from tungsten. Tungsten is sufficiently robust to withstand occasional cleaning, has a high melting point to retard breakdown due to ionization, and has a rough exterior surface that seems to promote efficient ionization. On the other hand, electrodes


242


preferably will have a highly polished exterior surface to minimize unwanted point-to-point radiation. As such, electrodes


242


preferably are fabricated from stainless steel, brass, among other materials. The polished surface of electrodes


232


also promotes ease of electrode cleaning.




In contrast to the prior art electrodes disclosed by Lee, electrodes


232


and


242


according to the present invention are light weight, easy to fabricate, and lend themselves to mass production. Further, electrodes


232


and


242


described herein promote more efficient generation of ionized air, and production of safe amounts of ozone, O


3


. Shown generally in

FIG. 4A

is moisture and/or scene imparting member


112


, disposed in the downstream region of the invention. If member


112


is made wet with water, air passing by member


112


en route to outlet port


106


will increase in humidity. By the same token, if member


112


contains a pleasant scent, air passing by en route to outlet port


106


will exit the present invention with a more pleasant aroma.




As shown in

FIGS. 4A and 4B

, high voltage pulse generator


170


is coupled between the first electrode array


230


and the second electrode array


240


. As noted, high voltage pulses from generator


170


produce a flow of ionized air that travels in the direction from the first array towards the second array (indicated herein by hollow arrows denoted “OUT”). As such, electrode(s)


232


may be referred to as an emitting electrode, and electrodes


242


may be referred to as collector electrodes or accelerator electrodes. This outflow advantageously contains safe amounts of O


3


, and exits the present invention from vent(s)


106


.




According to the present invention, it is preferred that the positive output terminal or port of the high voltage pulse generator be coupled to electrodes


232


, and that the negative output terminal or port be coupled to electrodes


242


. It is believed that the net polarity of the emitted ions is positive, e.g., more positive ions than negative ions are emitted. In any event, the preferred electrode assembly electrical coupling minimizes audible hum from electrodes


232


contrasted with reverse polarity (e.g., interchanging the positive and negative output port connections).




However, while generation of positive ions is conducive to a relatively silent air flow, from a health standpoint, it is desired that the output air flow be richer in negative ions, not positive ions. It is noted that in some embodiments, however, one port (preferably the negative port) of the high voltage pulse generator may in fact be the ambient air. Thus, electrodes in the second array need not be connected to the high voltage pulse generator using wire. Nonetheless, there will be an “effective connection” between the second array electrodes and one output port of the high voltage pulse generator, in this instance, via ambient air.




In the embodiments of

FIGS. 4A and 4B

, electrode assembly


220


comprises a first array


230


of wire electrodes


232


, whereas second array


240


includes generally “U”-shaped preferably hollow electrodes


242


. In preferred embodiments, the number N


1


of electrodes comprising the first array will preferably differ by one relative to the number N


2


of electrodes comprising the second array. In many of the embodiments shown, N


2


>N


1


. However, if desired, in

FIG. 4A

, addition first electrodes


232


could be added at the out ends of array


230


such that N


1


>N


2


, e.g., five electrodes


232


compared to four electrodes


242


.




Electrodes


242


are formed from sheet metal, preferably stainless steel, although brass or other sheet metal could be used. The sheet metal is readily formed to define side regions


244


and bulbous nose region


246


for hollow elongated “U” shaped electrodes


242


. While

FIG. 4A

depicts four electrodes


242


in second array


240


and three electrodes


232


in first array


230


, as noted, other numbers of electrodes in each array could be used, preferably retaining a symmetrically staggered configuration as shown. It is seen in

FIG. 4A

that while particulate matter


60


is present in the incoming (IN) air, the outflow (OUT) air is substantially devoid of particulate matter, which adheres to the preferably large surface area provided by the second array electrodes (see FIG.


4


B).




As best seen in

FIG. 4B

, the spaced-apart configuration between the arrays is staggered such that each first array electrode


232


is substantially equidistant from two second array electrodes


242


. This symmetrical staggering has been found to be an especially efficient electrode placement. Preferably the staggering geometry is symmetrical in that adjacent electrodes


232


or adjacent electrodes


242


are spaced-apart a constant distance, Y


1


and Y


2


respectively. However, a non-symmetrical configuration could also be used, although ion emission and air flow would likely be diminished. Also, it is understood that the number of electrodes


232


and


242


may differ from what is shown.




Assume that system


100


has overall dimensions of perhaps 6″ height (15 cm), 4″ width (10 cm) and perhaps 1″ thickness (2.5 cm). In

FIG. 4A

, typically dimensions would be as follows: diameter of electrodes


232


is about 0.08 mm, distances Y


1


and Y


2


are each about 16 mm, distance X


1


is about 16 mm, distance L is about 10 mm, and electrode heights Z


1


and Z


2


are each about 12 cm. The width W of electrodes


242


is preferably about 4 mm, and the thickness of the material from which electrodes


242


are formed is about 0.5 mm. Of course other dimensions and shapes could be used. It is preferred that electrodes


232


be small in diameter to help establish a desired high voltage field. On the other hand, it is desired that electrodes


232


(as well as electrodes


242


) be sufficiently robust to withstand occasional cleaning.




Electrodes


232


in first array


230


are coupled by a conductor


234


to a first (preferably positive) output port of high voltage pulse generator


170


, and electrodes


242


in second array


240


are coupled by a conductor


244


to a second (preferably negative) output port of generator


170


. It is relatively unimportant where on the various electrodes electrical connection is made to conductors


234


or


244


. Thus, by way of example

FIG. 4B

depicts conductor


244


making connection with some electrodes


242


internal to bulbous end


246


, while other electrodes


242


make electrical connection to conductor


244


elsewhere on the electrode. Electrical connection to the various electrodes


242


could also be made on the electrode external surface providing no substantial impairment of the outflow airstream results.




It is preferred that at least electrode assembly


240


is readily removable from housing


102


for cleaning, e.g., removing accumulated particulate matter


60


from the electrode surfaces. Thus, housing


102


may be provided with a user-removable second array


240


, or the housing may include a break-away feature providing the user with access to the second array for such periodic cleaning as may be required.




Referring to the geometry of the electrodes shown in

FIGS. 4A and 4B

, and indeed in other configurations shown herein, the ratio of the effective electric field emanating radius of electrode


232


to the nearest effective radius of electrodes


242


is at least about 15:1, and preferably is at least 20:1. Thus, in the embodiment of FIG.


4


A and

FIG. 4B

, the ratio R


2


/R


1


≈2 mm/0.04 mm≈50:1. Other dimensions may be used in other configurations, but preferably a minimum R


2


/R


1


ratio is maintain that is at least about 15:1.




In this and the other embodiments to be described herein, ionization appears to occur at the smaller electrode(s)


232


in the first electrode array


230


, with ozone production occurring as a function of high voltage arcing. For example, increasing the peak-to-peak voltage amplitude and/or duty cycle of the pulses from the high voltage pulse generator


170


can increase ozone content in the output flow of ionized air. If desired, user-control S


2


can be used to somewhat vary ozone content by varying (in a safe manner) amplitude and/or duty cycle. Specific circuitry for achieving such control is known in the art and need not be described in detail herein.




Note the inclusion in

FIGS. 4A and 4B

of at least one output controlling electrode


243


, preferably electrically coupled to the same potential as the second array electrodes. Electrode


243


preferably defines a pointed shape in side profile, e.g., a triangle. The sharp point on electrode(s)


243


causes generation of substantial negative ions (since the electrode is coupled to relatively negative high potential). These negative ions neutralize excess positive ions otherwise present in the output air flow, such that the OUT flow has a net negative charge. Electrode(s)


243


preferably are stainless steel, copper, or other conductor, and are perhaps 20 mm high and about 12 mm wide at the base although other shapes and/or dimensions could be used.




Another advantage of including pointed electrodes


243


is that they may be stationarily mounted within the housing of unit


100


, and thus are not readily reached by human hands when cleaning the unit. Were it otherwise, the sharp point on electrode(s)


243


could easily cause cuts. The inclusion of one electrode


243


has been found sufficient to provide a sufficient number of output negative ions, but more such electrodes may be included.




The electrode configurations of

FIGS. 4C and 4D

will now be described. In the embodiment of

FIGS. 4A and 4C

, each “U”-shaped electrode


242


has two trailing edges that promote efficient kinetic transport of the outflow of ionized air and O


3


. Note the inclusion on at least one portion of a trailing edge of a pointed electrode region


243


′. Electrode region


243


′ helps promote output of negative ions, in the same fashion as was described with respect to

FIGS. 4A and 4B

. Note, however, the higher likelihood of a user cutting himself or herself when wiping electrodes


242


with a cloth or the like to remove particulate matter deposited thereon. In FIG.


4


C and the figures to follow, the particulate matter is omitted for ease of illustration. However, from what was shown in

FIGS. 2A-4B

, particulate matter will be present in the incoming air, and will be substantially absent from the outgoing air. As has been described, particulate matter


60


typically will be electrostatically precipitated upon the surface area of electrodes


242


.




Note that the embodiments of

FIGS. 4C and 4D

depict somewhat truncated versions of electrodes


242


. Whereas dimension L in the embodiment of

FIGS. 4A and 4B

was about 10 mm, in

FIGS. 4C and 4D

, L has been shortened to about 5 mm. Other dimensions in

FIG. 4C

preferably are similar to those stated for

FIGS. 4A and 4B

. In

FIGS. 4C and 4D

, the inclusion of point-like regions


246


on the trailing edge of electrodes


242


seems to promote more efficient generation of ionized air flow. It will be appreciated that the configuration of second electrode array


240


in

FIG. 4C

can be more robust than the configuration of

FIGS. 4A and 4B

, by virtue of the shorter trailing edge geometry. As noted earlier, a symmetrical staggered geometry for the first and second electrode arrays is preferred for the configuration of FIG.


4


C.




In the embodiment of

FIG. 4D

, the outermost second electrodes, denoted


242


-


1


and


242


-


2


, have substantially no outermost trailing edges. Dimension L in

FIG. 4D

is preferably about 3 mm, and other dimensions may be as stated for the configuration of

FIGS. 4A and 4B

. Again, the R


2


/R


1


ratio for the embodiment of

FIG. 4D

preferably exceeds about 20:1.





FIGS. 4E and 4F

depict another embodiment of electrode assembly


220


, in which the first electrode array comprises a single wire electrode


232


, and the second electrode array comprises a single pair of curved “L”-shaped electrodes


242


, in cross-section. Typical dimensions, where different than what has been stated for earlier-described embodiments, are X


1


≈12 mm, Y


1


≈6 mm, Y


2


≈5 mm, and L


1


≈3 mm. The effective R


2


/R


1


ratio is again greater than about 20:1. The fewer electrodes comprising assembly


220


in





FIGS. 4E and 4F

promote economy of construction, and ease of cleaning, although more than one electrode


232


, and more than two electrodes


242


could of course be employed. This embodiment again incorporates the staggered symmetry described earlier, in which electrode


232


is equidistant from two electrodes


242


.





FIG. 4G and 4H

shown yet another embodiment for electrode assembly


220


. In this embodiment, first electrode array


230


is a length of wire


232


, while the second electrode array


240


comprises a pair of rod-or columnar electrodes


242


. As in embodiments described earlier herein, it is preferred that electrode


232


be symmetrically equidistant from electrodes


242


. Wire electrode


232


is preferably perhaps 0.08 mm tungsten, whereas columnar electrodes


242


are perhaps 2 mm diameter stainless steel. Thus, in this embodiment the R


2


/R


1


ratio is about 25:1. Other dimensions may be similar to other configurations, e.g.,

FIGS. 4E

,


4


F. Of course electrode assembly


220


may comprise more than one electrode


232


, and more than two electrodes


242


.




An especially preferred embodiment is shown in

FIGS. 4I-4K

, and to a lesser extent

FIG. 4L

as well. Referring now to

FIG. 4I

, the upstream or first electrode array


230


comprises first and second pin-like or pointed electrodes


232


, downstream substantially co-axial from which are disposed first and second annular-like electrodes


242


in the second electrode array


240


. Note that the first array electrodes


232


may be pointed, or pin-like, or cone-like and that more than one first array electrode


232


,


232


′ may be provided for a single second array electrode


242


. Preferably each second array electrode


242


has a smoothly rounded inner opening


246


. The surface of electrode


242


that faces electrode


232


will transition smoothly and continuously into this opening to form a collar region


247


, best seen in

FIGS. 4J-4N

. The material comprising second array electrode


242


surrounds this opening, which preferably is coaxial with and downstream from the pointed end or tapered end of electrode


232


.




Note that particulate matter


60


will be electro-kinetically transported towards and will tend to electrostatically adhere to the surface of electrodes


242


facing upstream, e.g., towards pointed electrodes


232


. Preferably electrodes


232


are tungsten, and electrodes


242


are stainless steel. In the various electrode embodiments described herein, the upstream electrodes


232


preferably will be tungsten as this material can sustain high temperature associated with ionization. By contrast, the downstream electrodes


242


typically are machined or fabricated and will be made from a material more workable than tungsten, yet durable, stainless steel being a preferred such material.





FIG. 4I

also depicts member


112


disposed adjacent a downstream region of the electrode array, preferably downstream from second electrodes


242


. By forming member


112


with an annular opening


113


. Member


112


has a length Lt of about 1″ (2.5 cm) and the annular opening has a diameter of perhaps 0.5″ (1.2 cm). In the preferred embodiment, the diameter of the annular opening in member


112


is greater than the diameter D′ (about 0.375″ or 9.5 mm) of the opening


249


formed in electrodes


242


. If Porex™ material or similar moisture-containing material is used and is saturated with water, humidity of the airstream exiting the present invention may be increased by about 10% to about 20% compared to ambient air. In an aircraft cabin environment where ambient air is especially dry (as well as being stale and perhaps germ laden), the ability of a user to generate and breath clean air with ozone and increased humidity can make air travel more enjoyable. As noted, member


112


may also or instead be moistened with medication, e.g., for an asthmatic user, or may include a scent improving chemical to enhance the aroma of the output air.




Referring briefly to

FIG. 2D

, member


4


I is a cylinder of preferably Porex™ material


112


inserted from the rear (with electrode


242


temporarily removed) within plastic cylinder


131


of housing portion


125


. Housing member


125


is user-removable from the rest of the housing, whereupon material


112


may be wet with water, medication, scent material, etc. after which housing member


125


is joined to the remainder of the housing.




Typical dimensions for the embodiment of

FIGS. 4I-4N

are L


1


≈10 mm, X


1


≈9.5 mm, T≈0.5 mm, and the diameter of opening


246


is about 12 mm. Dimension L


1


preferably is sufficiently long that upstream portions of electrode


232


(e.g., portions to the left in

FIG. 4I

) do not interfere with the electrical field between electrode,


232


and the collector electrode


242


. However, as shown in

FIG. 4J

, the effective R


2


/R


1


ratio is governed by the tip geometry of electrode


232


. Again, in the preferred embodiment, this ratio exceeds about 15:1 and more preferably exceeds about 20:1. Lines drawn in phantom in

FIGS. 4J-4N

depict theoretical electric force field lines, emanating from emitter electrode


232


, and terminating on the curved surface of collector electrode


246


. Preferably the bulk of the field emanates within about ±45° of coaxial axis between electrode


232


and electrode


242


. On the other hand, if the opening in electrode


242


and/or electrode


232


and


242


geometry is such that too narrow an angle about the coaxial axis exists, air flow will be unduly restricted.




One advantage of the ring-pin electrode assembly configuration shown in

FIG. 41

is that the upstream-facing flat surface regions of annular-like electrode


242


provide sufficient surface area to which particulate matter


60


entrained in the moving air stream can attach, yet be readily cleaned. Further, the ring-pin type configuration shown in

FIGS. 4I-4N

advantageously can generate more ozone than prior art configurations, or the configurations of

FIGS. 4A-4H

. For example, whereas the configurations of

FIGS. 4A-4H

may generate perhaps 50 ppb ozone, the configuration of

FIG. 4I

can generate about 2,000 ppb ozone.




In

FIG. 4J

, a detailed cross-sectional view of the central portion of electrode


242


in

FIG. 4I

is shown. As best seen in

FIG. 4J

, curved region


246


adjacent the central opening


249


in electrode


242


forms a smooth transition between the planar regions of electrode


242


(whereon particulate matter tends to collect), and the collar region


247


through which the clean and ionized air flow passes in going through electrode


242


. In

FIG. 4K

, collar region


247


is elongated relative to the embodiment of

FIG. 4J

, and the collar region in cross-section may be said to define a cylinder. Compare, for example, collar region


247


in

FIG. 4L

, which region in cross-section defines a converging cone, e.g., opposite surfaces of the region are not parallel but rather tend to converge, in a narrowed exit opening.




In the various embodiments shown in

FIGS. 4I-4N

, the relatively smooth and continuous transition between the planar surface of electrode


242


and the interior of the collar region aids the flow of air therethrough. Further, the continuous surface so defined provides an acceptably large surface area to which many ionization paths from the distal tip of electrode


232


have substantially equal path length. Thus, while the distal tip (or emitting tip) of electrode


232


is pointed or sharp and is advantageously small to concentrate the electric field between the electrode arrays, the adjacent regions of electrode


242


preferably provide many equidistant inter-electrode array paths. A high exit flowrate of perhaps 90 feet/minute and 2,000 ppb range ozone emission attainable with the configurations of

FIG. 4I-4M

confirm a high operating efficiency.





FIG. 4M

is a cross-section of a portion of the cylindrical portion


131


of front housing member


125


showing the relationship between the preferably plastic housing portion


131


, the moisture-retaining cylinder of material


112


within this housing portion, and a lipped annular electrode


160


that is adhesively attached to the rearmost (e.g., facing pin-like electrode


232


) section of housing portion


131


. The user need only remove housing portion


125


from the remainder of the housing, run water or other liquid through port opening


106


to thoroughly wet material


112


, and then re-insert housing portion


125


into the remainder of housing


102


. Housing portion


125


is retained within housing


102


by a spring-loaded mechanism that the user can release with a sliding mechanism on the lower surface of housing


102


(not shown in

FIG. 2D

for clarity) when necessary. Once well wet with water (or other liquid), member


112


will act to increase humidity of clear air output by the present invention for an hour or two before it is necessary to re-moisten member


112


.




In

FIG. 4N

, one or more pointed electrodes


232


is replaced by a conductive block


232


″ of carbon fibers, the block having a distal surface in which projecting fibers


233


-


1


, . . .


233


-N take on the appearance of a “bed of nails”. The projecting fibers can each act as an emitting electrode and provide a plurality of emitting surfaces. Over a period of time, some or all of the electrodes will literally be consumed, whereupon graphite block


232


″ will be replaced. Materials other than graphite may be used for block


232


″ providing the material has a surface with projecting conductive fibers such as


233


-N.




It will be appreciated that applicants' first array pin-like or pointed electrodes may be utilized with the second array electrodes of

FIGS. 4A-4H

if desired. Further, applicants' second array annular ring-like electrodes may be utilized with the first array electrodes of

FIGS. 4A-4H

. For example, in modifications of the embodiments of

FIGS. 4A-4H

, each wire or columnar electrode


232


is replaced by a column of electrically series-connected pin electrodes (e.g., as shown in FIGS.


4


I-


4


K), while retaining the second electrode arrays as depicted in these figures. By the same token, in other modifications of the embodiments of

FIGS. 4A-4H

, the first array electrodes can remain as depicted, but each of the second array electrodes


242


is replaced by a column of electrically series-connected ring electrodes (e.g., as shown in FIGS.


4


I-


4


K).




As described, the net output of ions is influenced by placing a bias element (e.g., element


243


) near the output stream and preferably near the downstream side of the second array electrodes. If no ion output were desired, such an element could achieve substantial neutralization. It will also be appreciated that the present invention could be adjusted to produce ions without producing ozone, if desired. In practice, increasing humidity of the output air by using a moistened member


112


will tend to decrease ozone content somewhat.




In summary, when operated from internal batteries, the present invention can provide several hours of clean air with safe amounts of ozone and, if desired, an increase in humidity of perhaps 10% to 20%. If desired, the air outflow may be augmented with other than water, for example an inhalant or other substance. If desired, the invention may be powered from an external source such as a motor vehicle 12 V battery. While the preferred embodiment includes two pair of electrodes, it will be appreciated that the present invention may be implemented with more or fewer electrodes.




Modifications and variations may be made to the disclosed embodiments without departing from the subject and spirit of the invention as defined by the following claims.



Claims
  • 1. A personal electro-kinetic air transporter-conditioner, comprising:a housing defining at least one vent; a self-contained ion generator, disposed within said housing, said ion generator producing an air flow that contains at least one of ions and ozone that flows electrostatically from said vent; and means for increasing humidity of said air flow, disposed in said housing; wherein said ion generator includes: a high voltage generator outputting a signal whose duty cycle may be varied from about 10% to about 100%; and an electrode assembly comprising a first electrode array effectively coupled to a first output port of said generator, and a second electrode array effectively coupled to a second output port of said generator, wherein one said output port may be at a same potential as ambient air; wherein particulate matter in ambient air is electrostatically attracted to said second electrode array, and wherein said ion generator further creates ozone that flows electrostatically from said vent.
  • 2. The personal transporter-conditioner of claim 1, wherein said high voltage generator has a characteristic selected from a group consisting of (a) said high voltage generator provides a first potential measurable relative to ground to said first electrode array and provides a second potential electrode array, and (b) said high voltage generator provides a first positive potential measurable relative to ground to said first electrode array and provides a second negative potential measurable relative to ground to said second electrode array.
  • 3. The personal transporter-conditioner of claim 1, wherein:said first electrode array includes at least one electrode selected from a group consisting of (i) an electrically conductive tapered pin-shaped electrode, and (ii) a portion of conductive material having an end defining a plurality of projecting conductive fibers; and said second electrode array includes an electrically conductive ring-shaped electrode defining a central through opening surrounded by a collar region such that a surface of said second electrode array facing said first electrode array transitions smoothly and continuously into an interior surface of said collar region, said second electrode disposed coaxial with and in a downstream direction from an emitting end of an electrode in said first electrode array.
  • 4. The personal transporter-conditioner of claim 3, wherein said first electrode array includes at least one said pin-shaped electrode, and said second electrode array has at east one characteristic selected from a group consisting of (i) said ring-shaped electrode defines in cross-section a tapered region terminating towards said central through opening, (ii) said ring-shaped electrode defines in cross-section a rounded region terminating towards said central through opening, (c) said ring-shaped electrode defines in cross-section a rounded profile terminating in said through opening, (d) a ratio of effective radius of said ring-shaped electrode to effective radius of said pin-shaped electrode exceeds about 15:1, (e) said pin-shaped electrode includes tungsten, (f) said pin-shaped electrode includes stainless steel, (g) said pin-shaped electrode includes stainless steel, (i) said collar region is cylindrical in cross-section.
  • 5. The personal transporter-conditioner of claim 3, further including a second said second electrode array.
  • 6. The personal transporter-conditioner of claim 1, wherein:said first electrode array includes at least one metal wire electrode; and said second electrode array includes at least two electrically conductive electrodes that in cross-section define a “U”-shape having a bulbous nose region and first and second trailing edge regions; the “U”-shaped electrodes being disposed such that said bulbous nose regions facing said metal wire electrode and are equidistant therefrom.
  • 7. The personal transporter-conditioner of claim 6, wherein an electrode in said second electrode array has at least one characteristic selected from a group consisting of (i) a portion of one trailing edge region is longer than a remaining trailing edge region on said electrode, (ii) said trailing edge region defines at least one pointed projection facing downstream, and (iii) a ratio of effective radius of an electrode in said second electrode array to effective radius of said metal wire electrode exceeds about 15:1.
  • 8. The personal transporter-conditioner of claim 1, wherein:said first electrode array includes at least one metal wire electrode; and said second electrode array includes at least two electrically conductive electrodes that in cross-section define a “L”-shape having a curved nose region; the “L”-shaped electrodes being disposed such that said curved nose regions face said metal wire electrode and are equidistant therefrom; wherein a ration of radius of one said “L”-shaped electrode to radius of said metal wire electrode exceeds about 15:1.
  • 9. The personal transporter-conditioner of claim 1, wherein:said first electrode array includes at least one metal wire electrode; and said second electrode array includes at least two electrically conductive rod electrodes; the rod electrodes being disposed such that said curved nose regions face said metal wire electrode and are equidistant therefrom; wherein a ratio of radius of one said rod electrodes to radius of said metal wire electrode exceeds about 15:1.
  • 10. The personal transporter-conditioner of claim 1, further including a bias electrode for determining net polarity of ions generated by said transporter-conditioner.
  • 11. A personal transporter-conditioner comprising:a housing defining at least one vent; a self-contained ion generator, disposed within said housing, said ion generator producing an air flow that contains at least one of ions and ozone that flows electrostatically from said vent; means for increasing humidity of said air flow, disposed in said housing; and means for turning-on said ion generator when said personal transporter-conditioner is vibrated; wherein said means for turning-on includes a container retaining at least one BB, and a transducer adjacent said container; and wherein vibrations cause said BB to move within said container and generate at least one of noise and force that is detected by said transducer.
  • 12. A personal electro-kinetic air transporter-conditioner, comprising:a housing defining at least one vent; and a self-contained ion generator, disposed within said housing, and including: a high voltage generator outputting a signal whose duty cycle may be varied from about 10% to about 100%; an electrode assembly comprising a first electrode array effectively coupled to a first output port of said generator, and a second electrode array effectively coupled to a second output port of said generator, wherein one said output port may be at a same potential as ambient air; said ion generator producing an air flow that contains at least one of ions and ozone that flows electrostatically from said vent; and means for increasing humidity of said air flow, disposed in said housing; wherein particulate matter in ambient air is electrostatically attracted to said second electrode array, and wherein said ion generator further creates ozone that flows electrostatically from said vent.
  • 13. The personal transporter-conditioner of claim 12, wherein said high voltage generator has a characteristic selected from a group consisting of (a) said high voltage generator provides a first potential measurable relative to ground to said first electrode array and provides a second potential measurable relative to ground to said second electrode array, and (b) said high voltage generator provides a first positive potential measurable relative to ground to said first electrode array and provides a second negative potential measurable relative to ground to second electrode array.
  • 14. The personal transporter-conditioner of claim 13, wherein:said first electrode array includes at least one electrode selected from a group consisting of (i) an electrically conductive tapered pin-shaped electrode, (ii) an electrically conductive pointed electrode, and (iii) a portion of conductive material having an end defining a plurality of projecting conductive fibers; and said second electrode array includes an electrically conductive ring-shaped electrode defining a central through opening surrounded by a collar region such that a surface of said second electrode array facing said first electrode array transitions smoothly and continuously into an interior surface of said collar region, said second electrode disposed coaxial with and in a downstream direction from an emitting end of an electrode in said first electrode array.
  • 15. The personal transporter-conditioner of claim 12, further including a bias electrode for determining net polarity of ions generated by said transporter-conditioner.
  • 16. A personal transporter-conditioner, comprising:a housing defining at least one vent; a self-contained ion generator, disposed within said housing, and including: a high voltage generator; an electrode assembly comprising a first electrode array effectively coupled to a first output port of said generator, and a second electrode array effectively coupled to a second output port of said generator, wherein one said output port may be at a same potential as ambient air; said ion generator producing an air flow that contains at least one of ions and ozone that flows electrostatically from said vent; and means for increasing humidity of said air flow, disposed in said housing; wherein particulate matter in ambient air is electrostatically attracted to said second electrode array, and wherein said ion generator further creates ozone that flows electrostatically from said vent; wherein said means for increasing humidity includes a member of water-retaining material disposed adjacent said vent, said material being selected from a group consisting of(i) material having a polyethylene base, and (ii) foam material.
  • 17. A personal transporter-conditioner, comprising:a housing defining at least one vent; a self-contained ion generator, disposed within said housing, and including: a high voltage generator; an electrode assembly comprising a first electrode array effectively coupled to a first output port of said generator, and a second electrode array effectively coupled to a second output port of said generator, wherein one said output port may be at a same potential as ambient air; said ion generator producing an air flow that contains at least one of ions and ozone that flows electrostatically from said vent; means for increasing humidity of said air flow, disposed in said housing; and means for tuming-on said ion generator when said personal transporter-conditioner is vibrated, said means for turning-on including at least one means selected from (i) a sound detector to detect ambient noise, and (ii) a container retaining at least one BB, and a transducer adjacent said container wherein vibrations cause said BB to move within said container and generate at least one of noise and force that is detected by said transducer; wherein particulate matter in ambient air is electrostatically attracted to said second electrode array, and wherein said ion generator further creates ozone that flows electrostatically from said vent.
  • 18. A personal electro-kinetic air transporter-conditioner, comprising:a housing defining an intake vent and an outlet vent; a self-container ion generator disposed in said housing, said ion generator including: an electrode assembly comprising a first electrode array and a second electrode array; and a high voltage generator that provides a voltage difference between said first electrode array and said second electrode array; and a moisture retaining material adjacent said outlet vent; wherein said ion generator produces an air flow from said intake vent to said outlet vent, and wherein said moisture retaining material increases humidity of said air flow.
  • 19. The personal electro-kinetic air transporter-conditioner of claim 18, wherein:said first electrode array includes at least one electrode that has a base and an apex, said base being wider than said apex, and said apex aimed generally toward said second electrode array; said second electrode array including at least one electrically conductive member through which there is defined an opening disposed generally in front of said apex; and said moisture retaining material defining a further opening disposed generally in front of said opening of said second electrode array.
  • 20. The personal electro-kinetic air transporter-conditioner of claim 19, wherein:said first electrode array is located closer to the intake vent than to the outlet vent; said second electrode array is located closer to the outlet vent than to the inlet vent; and said moisture retaining material is located between said second electrode array and said outlet vent.
  • 21. The personal electro-kinetic air transporter-conditioner of claim 20, wherein the moisture retaining material has a cylindrical shape through which said further opening is defined.
  • 22. The personal electro-kinetic air transporter-conditioner of claim 21, wherein a diameter of said further opening defined in said moisture retaining material is greater than a diameter of said opening of said second electrode.
  • 23. A personal transporter-conditioner, comprising:a housing; a self-contained ion generator, disposed within said housing, and including: a high voltage generator; an electrode assembly comprising a first electrode array effectively coupled to a first output port of said generator, and a second electrode array effectively coupled to a second output port of said generator, wherein one said output port may be at a same potential as ambient air; said ion generator producing an air flow that contains at least one of ions and ozone; a container retaining at least one small object, wherein vibrations cause said small object to move within said container and generate at least one of noise and force; and a transducer to detect at least one of noise and force that is generated when said small object moves within said container; wherein said ion generator turns-on in response to said transducer detecting at least one of noise and force.
  • 24. The personal electro-kinetic air transporter-conditioner of claim 23, further comprising:a moisture retaining material to increase humidity of said air flow.
RELATION TO CO-PENDING APPLICATION

This application is a continuation-in-part from applicants' pending U.S. patent application Ser. No. 09/186,471 filed Nov. 5, 1998 now U.S. Pat. No. 6,176,977 entitled ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER, and assigned to the assignee herein.

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Continuation in Parts (1)
Number Date Country
Parent 09/186471 Nov 1998 US
Child 09/669253 US