IL29524A - Ceiling electrode for installations to increase the electrical field strength in spaces - Google Patents

Ceiling electrode for installations to increase the electrical field strength in spaces

Info

Publication number
IL29524A
IL29524A IL29524A IL2952468A IL29524A IL 29524 A IL29524 A IL 29524A IL 29524 A IL29524 A IL 29524A IL 2952468 A IL2952468 A IL 2952468A IL 29524 A IL29524 A IL 29524A
Authority
IL
Israel
Prior art keywords
plate
electrode structure
structure according
shaped body
body means
Prior art date
Application number
IL29524A
Other languages
Hebrew (he)
Original Assignee
Berckheim Graf Von
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Berckheim Graf Von filed Critical Berckheim Graf Von
Publication of IL29524A publication Critical patent/IL29524A/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F1/00—Preventing the formation of electrostatic charges
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/40—Cleaning implements actuated by electrostatic attraction; Devices for cleaning same; Magnetic cleaning implements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/10—Applying static electricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/60—Use of special materials other than liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Epidemiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrostatic Separation (AREA)
  • Building Environments (AREA)
  • Cosmetics (AREA)

Description

pgnitoi I Π D TJinie,n Ί1 PATENTS AND DESIGNS ORDINANCE SPECIFICATION Ceiling Electrode for Installations to Increase the Electrical Field Strength in Spaces main"? ma yo -nay mp*n ninnepVK CONSTARTIlsr GRAF VON BERCKH I , a German citizen, Friedrichstrasse 9» 694 Weinheim a.d.B., Germany- do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement :- BACKGROUND OF THE INVENTION ■ The present invention relates to a ceiling electrode structure, and more particularly, to a ceiling electrode installation consisting of a number of electrodes which increase the electric field strength in the space disposed below the same.
As a rule, flat electrodes, closed in themselves, i. e. , forming a unitary, closed structure , are utilized for installations serving for the ' establishment and/or for the increase of the strength of an electric field in spaces, which electrodes essentially correspond to the size of the ceiling-except for the lateral spacing from the walls of the space and which are suspended electrically insulated below the spaced ceiling. These electrodes are normally connected to the positive terminal of a direct current, high-voltage source and an electric field is formed both between the ceiling electrode and the floor of the space as well as also between the ceiling electrode and the space ceiling. The two fields are of different strength depending on the differing spacing of the ceiling electrode from the floor and from the space ce iling. A consequence of the configuration of the electric field is also that dust particles and the like, which are present in the air of the space, are separated out and removed. The principal dust removal or separation takes place thereby within the area of the higher field strength, i. e. , in the space between the space ceiling and the ceiling electrode, which requires a cleaning of the electrode from time to time. In order to render this cleaning operation more easy to carry out and in order to simplify also the entire assembly with large ceiling surfaces, it has already been proposed to subdivide the electrode surface into individual plate-shaped bodies which, in turn, are adapted to be inserted into a frame-work arranged below the space ceiling whereby they are connected v/ith each oth r in an electrically conductive manner at their edges and form an electrode surface that is effective in its entirety as a closed surface. Apart therefrom, ceiling electrodes are also known of screen-like or grating-like construction; however, such prior art electrodes are not only frequently disturbing" in a living space but thereabove are not suited to bind larger. dust quantities and additional!? permit the strong appearance of a gradual soiling. Added thereto is the fact that with an electrode surface the strongest formation of the lines of the electric field takes place in the edge area which, with larger electrode surfaces, impairs the formation of an electric field that is as homogeneous as possible within the living space below such an electrode. A further disadvantage essentially resides in that the dust particles occurring in lived-in spaces are oftentimes sticky whereby the cleaning of the electrode surface is rendered difficult even if it is subdivided into individual plates electrically connected with each other. Furthermore, an electrode by reason of the known edge or fringe effect, is effective strongest, as mentioned above, within the area of the edges thereof, whence results the disadvantage with large electrode surfaces that primarily only the edge zones thereof become effective as regards dust separation and removal whereas the remaining electrode surface is more or less ineffective as regards dust removal or separation.
SUMMARY OF THE INVENTION According to the present invention, these disadvantages can be avoided with an electrode arranged below a space ceiling, especially arranged electrically insulated therefrom at a distance and composed of a plurality of plate -shaped bodies electrically connected with each other, in that the plate -shaped bodies or the like of the entire electrode are arranged in such a manner as to maintain • a free mutual spacing on all sides thereof. It is made possible thereby to increase, the so -called edge or fringe effect of the electrodes by increasing the edge distances and above all to distribute the same uniformly over the entire base surface of the space and of the space ceiling and to create thus a homogeneous, electric field in the living space disposed below the electrode. Simultaneously therewith, the dust separation and removal above the ceiling electrode is increased. It is particularly advantageous with respect to the necessary servicing operations at the electrode if the plate -shaped bodies of the electrode are made according to the present invention of cardboard, synthetic (resinous) plastic material or the like, either impregnated to be electrically conductive or provided with an electrically conducting coating, and are constructed as so-called disposable elements. In the event of the provision of a coating or lining, it is appropriate to provide the same both at the bottom as well as the top side of the electrode . In order to facilitate the interchange, the plate -shaped individual parts may be connected with a suitable electrically insulating mounting and support means arranged at the space ceiling by means of a snap-button-like, ball -joint -like, or plug-like coupling means which simultaneously effects the electric connection between the plate -shaped bodies and the current source. The installation and assembly becomes particularly simple with simultaneous reduction of the structural expenditures if each plate -shaped body is provided with only one insulated mounting and support means, arranged in the vertical line extending through the center of gravity thereof. In order to protect the mounting and support means against soiling, there may be provided at the top side of the plate - shaped body, an upwardly directed screen or shield, electrically connected with the • conducting layer of the plate -shaped body and of approximately half the height of the mounting and support mean's which surrounds this mounting and support means with a spacing and in whos e area a reduced field strength and therewith a reduced dust separation is effected. It is advantage ous with respect to the desired dust separation and removal at the top side of the electrode if the plate -shaped body forming the electrode is provided with edges extending obliquely inwardly and upwardly in a pan-like manner. It is then also possible to provide at the top side of the plate -shaped b ody a frame or the like which, in its turn, is se cured at the insulating mounting and s upport means by means of a ball and. socket -like coupling means and which is over lapped by the obliquely inwardly and upwardly directed edges of the plate -shaped body and thus permits to fasten the same readily inte changeably in the simplest manner. In case of the provision of a frame, the plate -shaped body itself can be manufactured extraordinarily thin, of light weight and with minimum manufacturing costs . It is appropriate if the ball head of the coupling is constructed so as to be expandable by means of a screw, bolt or the like from the bottom side of the plate -shaped b ody.
Accordingly, it is an object of the present invention to provide a ceiling-electrode for installations of the type des cribed above which eliminates , by extremely simple means , the shortcomings and drawbacks encountered with the prior art constructions.
Another object of the present invention resides in a ceiling electrode for installations of the type des cribed above which may be readily installed and removed for purposes of interchange or cleaning, yet does not impair the electric field configuration effective in the removal of dust particles and the like from the air.
A still further object of the present invention resides in a ceiling electrode structure which utilizes the edges or fringe- effect to great advantage while producing a homogeneous electric field within the entire living space .
Another object of the present invention resides in an electrode structure for ceiling electrode installations which can be manufactured with minimum expenditures, particularly as disposable element.
These and further objects, features, and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawing which shows ,, for purposes of illustration only, one embodiment in accordance with the present invention, and wherein: Figure 1 is a schematic vertical cross -sectional view through a space provided with electrode surfaces in accordance with the present invention arranged below the ceiling with free mutual spacing on all sides thereof and electrically connected with each other whose edges are bent up obliquely inwardly upwardly in a pan-like manner; Figure 2 is a schematic vertical cross -sectional view, on. an enlarged scale, through an individual electrode according to the pre sent invention provided with an insulating support means arranged centrally thereof and carrying a frame; and Figure 3 is a plan view on the electrode structure of Figure 2.
Referring now to the drawing wherein like reference numerals are used throughout the various views to designate like parts and more particularly to Figure 1, a space 1 is delimited by its floor surface 2 , its walls 3 , and the space ceiling 4. These boundary surfaces are to be considered as connected v i . ground. However, a floor electrode 5 might also be provided on or in the floor surface 2 of the space as indicated in dash line. Electrically insulating support and mounting means 6 are arranged below the space ceiling 4 which are provided at the bottom side thereof with coupling elements, for instance effective in a snap -button-like manner or in a plug-like manner of any conventional construction. As shown in Figure 2 for illustrative purposes only, flat surface elements 7 are secured at these support means 6 by means of a ball head 8 or the like. The flat surface elements 7 , in order to be able to replace the same after becoming soiled without cumbersome and time -consuming cleaning thereof, are made according to the present invention or cardboard, synthetic resinous material or any other suitable light-weight and inexpensive material. This material either may be itself impregnated so as to be electrically conductive or is, as schematically indicated in Figure 2, coated or backed with a thin electrically conductive metalli c coating 9 with advantage both at the bottom side as well as at the top side. The arrange ment is thereby made in such a manner that these flat bodies 7 , forming the electrode, have a free, mutual spacing 10 along their entire circumference so that the known edge or fringe effect of the electrodes is uniformly distributed over the entire base surface of the space 1. The individual electrodes or the electrically conducting linings or coatings 9 are electrically connected with each other in a conventional manner. This can take place , for instance, by mean of the ball-type coupling 8 according to Figure 2 whereby this connection is indicated in the form of connecting screws 11 to which are connected a line 12 which, in turn, is connected with a conventional current source 13 whose other terminal is connected by way of the line 14 with ground or with a floor electrode " As can be seen from Figure 1 , it suffices to provide for each plate -shaped body 7 only one centrally arranged support and mounting means 5 , 8 arranged in the vertical line through the center of gravity which reduces the manufacturing costs. In order to keep this support and fastening means 6 , 8 as free from dust precipitations and deposits as possible, there may be arranged according to Figure 2 at the top side of the plate -shaped body 7 a screen or shield 15 which surrounds this support and mounting means 6, 8 and extends up to half the height thereof. This screen or shield 15 effects within the immediate area of the insulating support means 6 a reduction of the field strength and therewith a reduction in the dust precipitation and deposit at the insulating part of the support means 6.
The plate-shaped bodies 7 forming the electrodes , properly speaking, may be manufactured particularly easily and inexpensively if these bodies are provided with edges 16 bent up inwardly in a pan-like manner. A frame 17 or the like provided in its center with a ball head 8 may then be connected with the support means 6 above each plate -shaped body 7 whereby this frame 17 , as indicated in Figure 3 , can be constructed as cross or as rectangular frame or the like and is overlapped by the edges 16 of the plate -shaped body 7 forming the electrode. Even with the most light -weight construction of the plate -shaped bodies, a sagging or drooping is also prevented with certainty in this manner. The ball head 8 may be so constructed, in order to enable reliable fastening of the frame 17 in the aligned position, that it can.be expanded by means of a screw 18, accessible from the bottom side of the electrode , and thus can be secured in the support means 6. It may also be appropriate additionally if the individual electrodes or the conductive coatings 9 of the plate -shaped bodies V ■ are connected with the line 12 or also with each other through high-ohmic resistances which form in a conventional manner an effective contact protection.
■ While I have shown and described only one embodiment in accordance with the present invention, it is understood that the same is not limited thereto but is susceptible of numerous changes and modifications as known to a person skilled in the art, and I therefore do not wish to be limited to the details shown and described herein but intend to cover all such changes and modifications as are encompassed by the scope of the appended claims.

Claims (39)

29524/2 CLAIMS V
1. An electrode structure for Installation on the ceiling of a room to increase the electrical field strength in the apace below the structure comprising: a plurality of individual plate-shaped conductive bodies each of which has a centrally located electrically conductive coupling member detachably connected to an electrically conductive coupling member carried by an electrically insulating support attached to the ceiling for detachably suspending the bodies from the ceiling in such a way that the bodies lie in a common plane and are peripherally spaced one from the other.
2. An electrode structure according to Claim 1, wherein the electrode structure is arranged electrically insulated at a space from the ceiling of the space and consists of a plurality of plate-shaped body means electrically connected with each other.
3. An electrode structure according to Claim 2, wherein the plate-shaped body means are made of a relatively inexpensive material as disposable element.
4. An electrode structure according to Claim 3, wherein the material of the plate-shaped body means is an electrically conductive, impregnated material.
5. An electrode structure according to Claim 3» wherein the material of the plate-shaped body means is provided with a conductive liner.
6. An electrode structure according to claim 3 , wherein the material of the plate -shaped body means is cardboard.
7. An electrode structure according to claim 3 , wherein the material of the plate-shaped body means is a synthetic resinous plastic.
8. An. electrode structure according to claim 3 , wherein the material of the plate -shaped body means is provided with a conductive coating.
9. An electrode structure according to claim 8, wherein the electrical conductive coating is provided both at the bottom side and at the top side of the plate -shaped body means.
10. An electrode structure according to claim 3 , further comprising electrically insulating support means at this space ceiling, and connecting means for detachably connecting said plate-shaped body means with said support means, said connecting means simultaneously constituting the electric connection between said body means and a current source.
11. An electrode structure according to claim 10, wherein each plate -shaped body means is provided with only one support means arranged substantially within the area of a vertical line through the center of gravity.
12. An electrode structure according to claim 11 , wherein said place -shaped body means is provided with edge portions extending obliquely inwardly and upwardly in a pan-like manner.
13. ' 13. An ele ctrode structure according to claim 12 , wherein each plate -shaped body means is provided with frame me ans at the top side the e of which is elastically overlapped by the edge portions of the plate -shaped body means, said frame means'being se cured , in its turn, at the electrically insulating support means by said connecting means .
14. An electrode structure according to claim 13 , where in said connecting means includes ball -joint -like coupling means .
15. An electrode structure according to claim 13 , whe rein said connecting means includes snap -button-like coupling means .
16. An ele ctrode structure according to claim 13 , wherein said connecting means includes plug -like coupling means.
17. An electrode structure according to claim 14, wherein said ball -joint-like coupling means includes a ball head, and threaded means accessible from the underside of the plate - shaped body means for expanding the ball head.
18. An electrode structure according to claim 13 , further comprising fastening means for said connecting means accessible from the underside of a plate -shaped body means .
19. An electrode structure according to claim 18, further comp ris ing shield means arranged at the top side of the plate -shaped body means and electrically connected with the electric conductive part of the top s ide of t
20. ' An electrode structure according to claim 1 , wherein the plate -shaped body means are made of a relatively inexpensive material as disposable element.
21. An electrode structure according to claim 1 , further comprising electrically insulating support means at this space ceiling, and connecting means for detachably connecting said plate-shaped body means with said support means, said conne cting means simultaneously constituting the electric connection betv/een said body means and a current source.
22. An electrode structure according to claim 21, wherein each plate-shaped body means is provided with only one support means arranged substantially within the area of a vertical line through the center of gravity.
23. An electrode structure according to claim 21, wherein said plate-shaped body means is provided with edge portions extending obliquely inwardly and upwardly in a pan- like manner.
24. An electrode structure according to claim 23, wherein each plate-shaped body means is provided with frame means at the top side thereof which is elasticalhy overlapped by the edge portions of the plate-shaped body means, said frame means being secured, in its turn, at the electrically insulating support means by said connecting means.
25. An electrode structure according to c sim 24, wherein said connecting means includes ball- joint-like coupling means .
26. An electrode structure according to claim 25, ;wherein said connecting means includes snap-button-like coupling means .
27. An electrode structure according to claim 26, wherein said connecting means includes plug- like coupling means .
28. An electrode structure according to claim 25, wherein said ball-joint-like coupling means includes a ball head, and threaded means accessible from the underside of the plate-shaped body means for expanding the ball head.
29. An electrode structure acc ording to claim 24, further comprising shield means arranged at the top side of the plate-shaped body means and electrically connected with the electric conductive part of the top side of the body means, said shield means surrounding the support means up to about half the height thereof with a predetermined spacing;.
30. An electrode structure according to claim 1, wherein said plate- shaped body means is provided with edge portions extending obliquely inwardly and upwardly in a pan-like manner .
31. An electrode structure according to claim 30, wherein each plate-shaped body means is provided with frame means at the top side thereof which is elastically overlapped by the edge portions of the plate- shaped body means, said frame means being secured, in its turn, at electrically insulating support means by connecting means .
32. An electrode structure according to claim 31, further comprising" fastening means for said connecting means accessible from the underside of a plate- shaped body means .
33. ■ 33. An electrode structure according to claim 1, further comprising shield means arranged at the top side of the plate-shaped body means and electrically connected with the electric conductive part of the top side of the body means, said shield means surrounding the support means up to about half the height thereof with a predetermined spacing.
34. An electrode structure according to claim 1, wherein the material of the plate-shaped body means is an electrically conductive, impregnated material.
35. An electrode according to claim 1 , wherein the material of the plate-shaped body means is provided with a conductive liner .
36. An electrode structure according to claim 1, wherein the material of the plate-shaped body means is cardboard .
37. An electrode structure according to claim 1, wherein the material of the plate-shaped body means is a synthetic resinous plastic .
38. An electrode structure according to claim 1, wherein the material of the plate- shaped body means is a synthetic resinous plastic .
39. An electrode structure according to claim 38, wherein t
IL29524A 1967-02-27 1968-02-25 Ceiling electrode for installations to increase the electrical field strength in spaces IL29524A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0091382 1967-02-27

Publications (1)

Publication Number Publication Date
IL29524A true IL29524A (en) 1972-07-26

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ID=6985811

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IL29524A IL29524A (en) 1967-02-27 1968-02-25 Ceiling electrode for installations to increase the electrical field strength in spaces

Country Status (12)

Country Link
US (1) US3483672A (en)
AT (1) AT290686B (en)
BE (1) BE711367A (en)
CH (1) CH475795A (en)
DE (1) DE1679490B1 (en)
DK (1) DK122686B (en)
FI (1) FI48128C (en)
FR (1) FR1556543A (en)
GB (1) GB1195343A (en)
IL (1) IL29524A (en)
NL (1) NL145661B (en)
NO (1) NO119886B (en)

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US2934648A (en) * 1955-04-01 1960-04-26 Messen Jaschin G A Apparatus for the electric charging by means of radioactive preparations of matter suspended in a gas stream
US2928941A (en) * 1955-04-04 1960-03-15 Ionaire Inc Forced air ion generator
CH337178A (en) * 1955-04-07 1959-03-31 Eei Etabl Electrovit Internati Room electrostatic filter system for air purification on an electrostatic basis
US2939006A (en) * 1956-01-27 1960-05-31 Messen Jaschin G A Apparatus for electrically charging particles suspended in an air current by means of radioactive preparations
US2972680A (en) * 1956-04-26 1961-02-21 Ionaire Inc Ion generator and method
US2928942A (en) * 1957-02-15 1960-03-15 Ionaire Inc Ion generator
DE1162054B (en) * 1957-09-06 1964-01-30 Etabl Tempera Internat Electrode for systems to increase the electrical field strength in rooms
US3311108A (en) * 1962-02-26 1967-03-28 Cristofv Cristjo Means for artificially producing and controlling electric power field strengths and freely suspended ions in the atmosphere
DE1233127B (en) * 1962-11-26 1967-01-26 Windmoeller & Hoelscher Device for pre-breaking fold lines in films made of thermoplastic material
US3289392A (en) * 1963-08-29 1966-12-06 American Air Filter Co Collector cell housing for electrostatic precipitator

Also Published As

Publication number Publication date
FI48128B (en) 1974-02-28
BE711367A (en) 1968-07-01
NL145661B (en) 1975-04-15
CH475795A (en) 1969-07-31
AT290686B (en) 1971-06-11
NO119886B (en) 1970-07-20
DK122686B (en) 1972-03-27
GB1195343A (en) 1970-06-17
FI48128C (en) 1974-06-10
US3483672A (en) 1969-12-16
DE1679490B1 (en) 1970-05-21
NL6801639A (en) 1968-08-28
FR1556543A (en) 1969-02-07

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