EP0102569A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electric corona discharge device, method for making said device and electrostatic treatment apparatus comprising said device
Assignee: Niterra Co Ltd
•
Filing: 1983-08-18
•
Granted: —
•
Expires: 2003-08-18
Abstract
Abstract An electric field device is obtained by the steps of employing a highly pure and mechanically electrically chemically and thermally extremely durable ceramic material, such as a high purity alumina porcelain, as a dielectric material, disposing electrodes on the shaped material before sintering by a thick film printing technique, such as screen printing, with a dispersion ink of finely divided metal, e.g. tungsten, and sintering the shaped material integrally with the electrodes. The product is extremely dense, mechanically electrically chemically and thermally durable and highly reliable.
Inventors
- 👤 Senichi Masuda
- 👤 Isamua Fukuura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 15:45
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04; D; D06; D06M; D06M10/00; D06M10/02; D06M10/025; B; B03; B03C; B03C7/00; B03C7/02; B03C7/04; B05; B05B; B05B5/00; B05B5/025; B05B5/03; B05B5/032; B05B5/043; B05B5/08; B05B5/087; B05B5/088; B65; B65G; B65G54/00; B65G54/02; G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; H01; H01T; H01T19/00
Claims Analysis
Total Claims: 85
Claim 1
Independent Claim
38 words
An electric field device which comprises a dielectric body which has been shaped with a fine ceramic so as to be of suitable thickness and electrodes for forming electric field disposed in said dielectric body as integral part.
Claim 2
Dependent Claim
38 words
An electric field device which comprises a dielectric body which has been shaped with a fine ceramic so as to be of suitable thickness and electrodes for forming electric field disposed in said dielectric body as integral part.
Claim 3
Dependent Claim
24 words
An electric field device according to claim 1 wherein said dielectric body which has been shaped with a fine ceramic is of plate form.
Claim 4
Dependent Claim
22 words
An electric field device according to claim 1 wherein said dielectric body which has been shaped with a fine ceramic is cylindrical.
Claim 5
Dependent Claim
38 words
An electric field device according to claim 1 wherein said dielectric body which has been shaped with a fine ceramic has a number of small holes penetrating through the body to open onto both upper and lower surfaces.
Claim 6
Dependent Claim
37 words
An electric field device according to any one of claims 1, 2, 3 and 4 wherein said electrodes for forming electric field disposed integrally in said dielectric body consists of a linear electrode and a planar electrode.
Claim 7
Dependent Claim
47 words
An electric field device according to any one of claims 1, 2, 3 and 4 wherein said electrodes for forming electric field disposed integrally in said dielectric body comprise an electrode or electrodes disposed on said dielectric body and an electrode or electrodes disposed within said body.
Claim 8
Dependent Claim
34 words
An electric field device according to any one of claims 1, 2, 3 and 4 wherein said electrodes for forming electric field disposed integrally in said dielectric body are embedded inside said dielectric body.
Claim 9
Dependent Claim
37 words
An electric field device according to any one of claims 1, 2, 3 and 4 wherein said electrodes for forming electric field disposed integrally in said dielectric body are formed on the surface of said dielectric body.
Claim 10
Dependent Claim
25 words
An electric field device according to any one of claims 1, 2, 3 and 4 wherein said electrodes for forming electric field comprise linear electrodes.
Claim 11
Dependent Claim
20 words
An electric field device according to claim 9 wherein a plurality of linear electrodes are disposed parallel to each other.
Claim 12
Dependent Claim
22 words
An electric field device according to claim 10 wherein every other electrode of plural linear electrodes is electrically connected to one another.
Claim 13
Dependent Claim
21 words
An electric field device according to claim 10 wherein every three electrodes of plural electrodes is electrically connected to one another.
Claim 14
Dependent Claim
18 words
An electric field device according to claim 9 wherein said linear electrode is formed so as to meander.
Claim 15
Dependent Claim
20 words
An electric field device according to claim 9 wherein said linear electrode is shaped into a form of toothed comb.
Claim 16
Dependent Claim
37 words
An electric field device according to claim 3 wherein said electrode for forming electric field is composed of linear electrodes, the direction of said linear electrodes being the same with lengthwise direction of said cylindrical dielectric body.
Claim 17
Dependent Claim
36 words
An electric field device according to claim 3 in which said electrode for forming electric field comprises linear electrode which is disposed so as to depict a periphery of a cross section of cylindrical dielectric body.
Claim 18
Dependent Claim
31 words
An electric field device according to claim 3 in which said electrode for forming electric field is disposed so as to depict a helix on a surface of cylindrical dielectric body.
Claim 19
Dependent Claim
26 words
An electric field device according any one of claims 1, 2, 3 and 4 in which said electrode for forming electric field is a planar electrode.
Claim 20
Dependent Claim
29 words
An electric field device according to claim 4 wherein a number of small holes penetrating through the dielectric body of fine ceramic to open onto both surfaces are cylindrical.
Claim 21
Dependent Claim
33 words
An electric field device according to claim 4 wherein a number of small holes penetrating through the dielectric body of fine ceramic to open onto both surfaces are of the form of slit.
Claim 22
Independent Claim
58 words
A method for making an electric field device which comprises shaping a raw sheet with a fine ceramic dielectric material, such as powder of finely divided alumina, forming an electrode for forming electric field of a suitable shape on a surface of said raw sheet, and sintering the resulting raw sheet with said electrode for forming electric field.
Claim 23
Independent Claim
58 words
A method for making an electric field device which comprises shaping a raw sheet with a fine ceramic dielectric material, such as powder of finely divided alumina, forming an electrode for forming electric field of a suitable shape on a surface of said raw sheet, and sintering the resulting raw sheet with said electrode for forming electric field.
Claim 24
Dependent Claim
30 words
A method for making an electric field device according to claim 21 wherein said fine ceramic dielectric material is a highly pure alumina having a purity of 90% or higher.
Claim 25
Dependent Claim
35 words
A method for making an electric field device according to claim 21 wherein said fine ceramic dielectric material is a fine ceramic material other than highly pure alumina having a purity of 90% or higher.
Claim 26
Dependent Claim
36 words
A method for making an electric field device according to claim 21 wherein said electrode for forming electric field is formed by printing with a dispersion ink of a suitable finely divided material, such as tungsten.
Claim 27
Dependent Claim
34 words
A method for making an electric field device according to claim 21 wherein the electrode for forming electric field formed on a surface of said raw sheet is composed of preliminarily shaped metallic material.
Claim 28
Dependent Claim
32 words
A method for making an electric field device according to claim 21 wherein the electrode for forming electric field formed on a surface of said raw sheet is made of carbon fiber.
Claim 29
Dependent Claim
26 words
A method for making an electric field device according to claim 21 wherein the electrode for forming electric field is composed of a semiconductor ceramic material.
Claim 30
Dependent Claim
38 words
A method for making an electric field device according to claim 21 wherein a raw sheet which is to be sintered together with electrodes for forming electric field disposed therein have been shaped to be of plate form.
Claim 31
Dependent Claim
38 words
A method for making an electric field device according to claim 21 wherein a raw sheet which is to be sintered together with electrodes for forming electric field disposed therein have been shaped to be of hollow cylinder.
Claim 32
Dependent Claim
44 words
A method for making an electric field device according to claim 21 wherein a raw sheet which is to be sintered together with said electrodes for forming electric field disposed therein have a number of small holes penetrating therethrough to open onto both surfaces.
Claim 33
Independent Claim
135 words
A method for making an electric field device which comprises printing a linear electrode on upper surface of a raw upper layer sheet shaped with a powder of finely divided alumina as fine ceramic dielectric material with a dispersion ink of a finely divided metal, such as tungsten, printing a planar electrode on lower surface of said raw upper layer sheet with the same dispersion ink, providing a raw lower layer sheet shaped from said dielectric material with a hole penetrating from upper surface to lower surface thereof, filling said hole with said dispersion ink to form conductor, superposing-said raw upper layer sheet upon said raw lower layer sheet so that the lower surface of upper layer sheet may directly contact with the upper surface of lower layer sheet, and sintering them after press londing.
Claim 34
Independent Claim
135 words
A method for making an electric field device which comprises printing a linear electrode on upper surface of a raw upper layer sheet shaped with a powder of finely divided alumina as fine ceramic dielectric material with a dispersion ink of a finely divided metal, such as tungsten, printing a planar electrode on lower surface of said raw upper layer sheet with the same dispersion ink, providing a raw lower layer sheet shaped from said dielectric material with a hole penetrating from upper surface to lower surface thereof, filling said hole with said dispersion ink to form conductor, superposing-said raw upper layer sheet upon said raw lower layer sheet so that the lower surface of upper layer sheet may directly contact with the upper surface of lower layer sheet, and sintering them after press londing.
Claim 35
Dependent Claim
38 words
A method for making an electric field device according to claim 31 wherein said linear electrode printed on said raw upper layer sheet is connected to a terminal conductor which has been printed with the same dispersion ink.
Claim 36
Dependent Claim
52 words
A method for making an electric field device according to claim 31 wherein the ink conductor filling said hole in said raw lower layer sheet from the upper surface to the lower surface is connected to both circular conductors printed at the upper end and at the lower end of said hole.
Claim 37
Dependent Claim
74 words
An electrostatic treatment apparatus of an object matter which comprises an electric field device having a planar electrode and a linear electrode both integrally disposed in a dielectric body which has been formed into a suitable shape, a plasma generating surface of said electric field device being directed to an object matter to be treated, and a high frequency A.C. electric source which is connected between said planar electrode and said linear electrode (3).
Claim 38
Dependent Claim
74 words
An electrostatic treatment apparatus of an object matter which comprises an electric field device having a planar electrode and a linear electrode both integrally disposed in a dielectric body which has been formed into a suitable shape, a plasma generating surface of said electric field device being directed to an object matter to be treated, and a high frequency A.C. electric source which is connected between said planar electrode and said linear electrode (3).
Claim 39
Dependent Claim
27 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein snid object matter to be treated is a rubber belt (23) to be discharged.
Claim 40
Dependent Claim
35 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein the shape of dielectric body is cylindrical, and said plasma generating surface is the outer peripheral'surface of a cylindrical dielectric body (25).
Claim 41
Dependent Claim
36 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein the shape of dielectric body is cylindrical, and said plasma generating surface is the inner peripheral surface of a cylindrical dielectric body (25).
Claim 42
Dependent Claim
56 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein said linear electrode (3) is connected to a D.C. high voltage source (30), said object matter to be treated is charged particles of a powder (32), and said plasma generating surface is directed through a charging space (31) toward a grounded non-corona electrode.
Claim 43
Dependent Claim
85 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein said electric field device consists of a cylindrical electric field device (26) having a linear electrode (3) connected to a negative D.C. high voltage source (30) and another cylindrical electric field device (26a) having a grounded linear electrode (3), said plasma generating surface is formed on outer peripheral surfaces of both cylindrical electric field devices (26, 26a), and said object matter to be treated is a surface of grounded photo-sensitive roller (34).
Claim 44
Dependent Claim
49 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein said linear electrode of the electric field device is connected to a D.C. high voltage source (30), and said object matter to be treated is a film (36) detachably placed on a grounded non-corona electrode (29).
Claim 45
Dependent Claim
53 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein said linear electrode is connected to a D.C. high voltage source, said object matter to be treated is a powder painting material, a plasma generating surface is directed through a passageway of said powder painting material toward a grounded substrate.
Claim 46
Dependent Claim
82 words
An electrostatic treatment apparatus of an object matter according to claim 34 wherein said electric field device comprises an. annular electric field device 142) which has been coaxially attached to the end opening of a hand gun (45), said linear electrode constituting said electric field device is connected to a D.C. high voltage source (30), said object matter to be treated is a powder painting material passing through said hand gun, and said plasma generating surfnce is directed to a substrate (38).
Claim 47
Dependent Claim
95 words
An electrostatic treatment apparatus of an object matter which comprises: (1) electric field devices which have been constructed by embedding a number of linear electrodes within a dielectric body formed into a suitable shape with a fine ceramic material and connecting every three linear electrodes of said linear electrodes one another to compose three-phase electrode groups, progressive wave non-uniform electric field generating surface of said electric field device being directed to an object matter to be treated, and (2) three-phase A.C. high voltage sources (84) and (85) which are connected to respective three-phase electrode groups.
Claim 48
Dependent Claim
95 words
An electrostatic treatment apparatus of an object matter which comprises: (1) electric field devices which have been constructed by embedding a number of linear electrodes within a dielectric body formed into a suitable shape with a fine ceramic material and connecting every three linear electrodes of said linear electrodes one another to compose three-phase electrode groups, progressive wave non-uniform electric field generating surface of said electric field device being directed to an object matter to be treated, and (2) three-phase A.C. high voltage sources (84) and (85) which are connected to respective three-phase electrode groups.
Claim 49
Dependent Claim
43 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein said object matter to be treated is a powder being conveyed, and said powder is fed onto said progressive wave non-uniform electric field generating surface of electric field device. '
Claim 50
Dependent Claim
40 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein an one-phase electrode group (55, 53a, 53b) of three-phase electrode groups is arranged to expose to outside a surface of said dielectric body constituting electric field device.
Claim 51
Dependent Claim
64 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein the internal surface of a flume (79) having a rectangular section is paved with said electric field devices (82), (82a), (82b) and (82c), and said progressive wave non-uniform electric field generating surface of each electric field device is directed to an object matter to be treated in the passageway of flume.
Claim 52
Dependent Claim
58 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein said electric field device is a cylindrical one (96), and said object matter to be treated is subject to at least any one treatment of conveying treatment, passivation treatment, centrifugal separation treatment and discharge-chemical treatment in the interior of said cylindrical electric field device (96).
Claim 53
Dependent Claim
70 words
An electrostatic treatment apparatus of an object matter according to claim 47 wherein linear electrode constituting said cylindrical electric field device (96) are arranged parallel to the lengthwise direction of said cylindrical electric field device, and said object matter to be treated is subject to at least any one treatment of rotating treatment, mixing treatment, passivation treatment and twisting treatment in the interior of said cylindrical electric field device (96).
Claim 54
Dependent Claim
80 words
An electrostatic treatment apparatus of an object matter according to claim 47 wherein the direction of linear electrodes (97), (98) and (99) constituting said cylindrical electric field device (96) is oblique to that of axis of said cylindrical electric field device, and said object matter to be treated is a powder or fiber subject to at least any one treatment of conveying treatment, rotating and agitating treatment, and twisting treatment in the interior of said cylindrical electric field device (96).
Claim 55
Dependent Claim
68 words
An electrostatic treatment apparatus of an object matter according to claim 47 wherein said cylindrical electric field device is provided with a discharge electrode needle (107) attached to the forward end thereof and with a hopper (106) for powder painting material attached to the base end thereof, and furthermore said cylindrical electric field device is being introduced into the interior of a metal pipe (108) to be coated.
Claim 56
Dependent Claim
72 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein said electric field device comprises a cylindrical electric field device having an entrance (89) for dielectric liquid at one end thereof and an outlet (95) for dielectric liquid at the'other end, and said object matter to be treated is a liquid capable of being transported by means of the progressive wave non-uniform electric field of said electric field device.
Claim 57
Dependent Claim
24 words
An electrostatic treatment apparatus of an object matter according to claim 51 wherein said cylindrical electric field device (96) is provided with heating means.
Claim 58
Dependent Claim
78 words
An electrostatic treatment apparatus of an object matter according to claim 51 wherein said cylindrical electric field device is so inclined that the path may ascend from said entrance (89) for liquid to said outlet (95) for liquid, and is provided at both ends with containers (100) and (101) for working fluid having respective heat transfer surfaces (102) and (103), respectively, and said object matter to be treated is said working fluid in both containers (100) and (101).
Claim 59
Dependent Claim
50 words
An electrostatic treatment apparatus of an object matter according to claim 53 wherein said cylindrical electric field device (96) is installed within a cylinder (104a) for returning of gas, and said containers (100) and (101) for working fluid communicate with respective ends of said cylinder (104a) for returning of gas.
Claim 60
Dependent Claim
53 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein said electric field devices are disposed on vertical walls (117) and (118) and on inclined walls (119) and (120) of a painting apparatus, and said object matter to be treated is a powder painting material for coating a substrate (122).
Claim 61
Dependent Claim
73 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein the inner wall of a booth (126) for powder painting is paved with said electric field devices, and said object matter to be treated is a powder adhered to and built up on inner wall of booth (126) for powder painting, said powder comprising particles remaining of charged painting powder ejected from a spray gun (146) toward a substrate (122).
Claim 62
Dependent Claim
74 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein said electric field device is of plate form and is inclined from the horizontal, said electric field device of plate form being provided with a hopper (113) for mixed powder at the upper part thereof, a hopper (155) for collecting at the lower part thereof, and chutes (156) and (157) parallel to the linear electrodes on both left and right sides.
Claim 63
Dependent Claim
79 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein every phase electrode of said three-phase electrodes is divided into two electrodes, the resulting two divided electrodes are arranged adjacent to each other, high resistances (158), (159) and (160) are inserted between every two divided electrodes, a pulse high voltage source (161) is connected to these electrodes, and said object matters be treated are powder particles which are being conveyed afloat above said electric field device.
Claim 64
Dependent Claim
60 words
An electrostatic treatment apparatus of an object matter according to claim 58 wherein a number of grounded corona discharge electrodes (162), (163) and (164) are disposed between respective pairs of said divided phase electrodes which are disposed within said dielectric body, said corona discharge electrodes being of thin wire shape and being exposed to the outside of said dielectric body.
Claim 65
Dependent Claim
54 words
An electrostatic treatment apparatus of an object matter according to claim 43 wherein said electric field device has a number of small holes which penetrate therethrough to open onto both upper and lower surfaces, said small holes permitting the electric field device to act as perforated plate of an air slide for conveying powder.
Claim 66
Dependent Claim
99 words
An electrostatic treatment apparatus of an object matter which comprises: (1) electric field devices which have been constructed by disposing a number of parallel linear electrodes (73), (73a), (73b), (74), (74a) and (74b) in a dielectric body formed into a suitable shape with a fine ceramic material and connecting every other linear electrode of said linear electrodes to compose single-phase electrode groups, standing wave non-uniform electric field generating surface of said electric field devices being directed to an object matter to be treated, and (2) single-phase A.C. high voltage sources (78) which are connected to respective single-phase electrode groups.
Claim 67
Dependent Claim
99 words
An electrostatic treatment apparatus of an object matter which comprises: (1) electric field devices which have been constructed by disposing a number of parallel linear electrodes (73), (73a), (73b), (74), (74a) and (74b) in a dielectric body formed into a suitable shape with a fine ceramic material and connecting every other linear electrode of said linear electrodes to compose single-phase electrode groups, standing wave non-uniform electric field generating surface of said electric field devices being directed to an object matter to be treated, and (2) single-phase A.C. high voltage sources (78) which are connected to respective single-phase electrode groups.
Claim 68
Dependent Claim
28 words
An electrostatic treatment apparatus of an object matter according to claim 61 wherein the inner wall of an inclined flume (l65) is paved with said electric field devices.
Claim 69
Dependent Claim
58 words
An electrostatic treatment apparatus of an object matter according to claim 61 wherein a plurality of said electric field devices are arranged on a perforated plate (200) in a powder fluidized bed vessel (198) with maintaining spaces (202) between every two devices, and an object matter to be treated is a powder which has been charged by fluidizing.
Claim 70
Dependent Claim
78 words
An electrostatic treatment apparatus of an object matter which comprises an electric field device or devices which have been constructed by disposing integrally planar electrodes and linear electrodes in a dielectric body formed into a suitable shape with a fine ceramic material, plasma generating surface of said electric field device being directed to an object matter to be treated, and a very short-time pulse high voltage source-(180) which is connected between said planar electrodes and said linear electrodes.
Claim 71
Dependent Claim
78 words
An electrostatic treatment apparatus of an object matter which comprises an electric field device or devices which have been constructed by disposing integrally planar electrodes and linear electrodes in a dielectric body formed into a suitable shape with a fine ceramic material, plasma generating surface of said electric field device being directed to an object matter to be treated, and a very short-time pulse high voltage source-(180) which is connected between said planar electrodes and said linear electrodes.
Claim 72
Dependent Claim
57 words
An electrostatic treatment apparatus of an object matter according to claim 64 wherein a plurality of said electric field devices are arranged along the direction of exhaust gas current in an exhaust gas passage (196) with maintaining spaces between every two devices, and said object matter is an exhaust gas flowing through said exhaust gas passage (196).
Claim 73
Dependent Claim
37 words
An electrostatic treatment apparatus of an object matter according to claim 64 wherein said electric field device is disposed in a single-stage electrostatic precipitator to confront a dust collecting electrode of plate form in the gas passage.
Claim 74
Dependent Claim
33 words
An electrostatic treatment apparatus of an object matter according to claim 64 wherein said electric field device is arranged in a charging section disposed before a collecting section of a two-stage electrostatic precipitator.
Claim 75
Dependent Claim
164 words
An electrostatic treatment apparatus of an object matter comprising an electric field device which is composed by the steps of disposing an upper planar electrode (245), a lower planar electrode (245a) and an internal planar electrode (246) on the upper and lower surfaces of and within a dielectric body formed into a plate shape with a fine ceramic material, respectively, to be parallel to one another, and providing the body with a number of small holes (226) penetrating therethrough go open onto both upper and lower surfaces; a very short-time pulse high voltage source (180) connecting said upper planar electrode (245) to said internal planar electrode (246); and a D.C. high voltage source (249) connecting said internal planar electrode (246) to said lower planar electrode (245a); whereby a plasma generating surface is formed in the upper half of said small hole (266) and the lower surface of said lower planar electrode (245a) confronts a surface of photo- sensitive material having photoconductivity for electronic photography.
Claim 76
Dependent Claim
164 words
An electrostatic treatment apparatus of an object matter comprising an electric field device which is composed by the steps of disposing an upper planar electrode (245), a lower planar electrode (245a) and an internal planar electrode (246) on the upper and lower surfaces of and within a dielectric body formed into a plate shape with a fine ceramic material, respectively, to be parallel to one another, and providing the body with a number of small holes (226) penetrating therethrough go open onto both upper and lower surfaces; a very short-time pulse high voltage source (180) connecting said upper planar electrode (245) to said internal planar electrode (246); and a D.C. high voltage source (249) connecting said internal planar electrode (246) to said lower planar electrode (245a); whereby a plasma generating surface is formed in the upper half of said small hole (266) and the lower surface of said lower planar electrode (245a) confronts a surface of photo- sensitive material having photoconductivity for electronic photography.
Claim 77
Dependent Claim
179 words
An electrostatic treatment apparatus of an object matter comprising an electric field device which is composed by the steps of disposing integrally an internal planar electrode (246) and a lower planar electrode (245a) within and on the lower surface of a-dielectric body formed into a plate shape with a fine ceramic material, respectively, providing the body and both planar electrodes with a number of small holes (226) penetrating therethrough, and disposing separate annular electrodes (251), (252) and (253) around respective small holes above said internal planar electrode so that a part of said annular electrode may be exposed to the interior of small hole; a pulse electric source (257) connecting between each of said annular electrodes and said internal planar electrode; and a D.C. electric source (249) connecting between said internal planar electrode and said lower planar electrode; whereby a plasma generating surface is formed in the upper half of inner wall of said small hole (226) and the lower surface of said lower planar electrode (245a) confronts a surface of rotating drum composed of photosensitive material having photoconductivity.
Claim 78
Dependent Claim
179 words
An electrostatic treatment apparatus of an object matter comprising an electric field device which is composed by the steps of disposing integrally an internal planar electrode (246) and a lower planar electrode (245a) within and on the lower surface of a-dielectric body formed into a plate shape with a fine ceramic material, respectively, providing the body and both planar electrodes with a number of small holes (226) penetrating therethrough, and disposing separate annular electrodes (251), (252) and (253) around respective small holes above said internal planar electrode so that a part of said annular electrode may be exposed to the interior of small hole; a pulse electric source (257) connecting between each of said annular electrodes and said internal planar electrode; and a D.C. electric source (249) connecting between said internal planar electrode and said lower planar electrode; whereby a plasma generating surface is formed in the upper half of inner wall of said small hole (226) and the lower surface of said lower planar electrode (245a) confronts a surface of rotating drum composed of photosensitive material having photoconductivity.
Claim 79
Dependent Claim
104 words
An electrostatic treatment apparatus of an object matter comprising an electric field device (18) which is composed by disposing integrally a planar electrode (9) and linear electrodes (3), (4) and (5) within and on a surface of a dielectric body formed into a plate shape with a fine ceramic-material, respectively; and a D.C. high voltage source '(30) connected with said planar electrode (9) of said electric field device by way of a switch (260); whereby said planar electrode is grounded via said switch (260) and a plasma generating surface of said electric field device confronts an object matter (261) subject to electrostatic chuck action.
Claim 80
Dependent Claim
104 words
An electrostatic treatment apparatus of an object matter comprising an electric field device (18) which is composed by disposing integrally a planar electrode (9) and linear electrodes (3), (4) and (5) within and on a surface of a dielectric body formed into a plate shape with a fine ceramic-material, respectively; and a D.C. high voltage source '(30) connected with said planar electrode (9) of said electric field device by way of a switch (260); whereby said planar electrode is grounded via said switch (260) and a plasma generating surface of said electric field device confronts an object matter (261) subject to electrostatic chuck action.
Claim 81
Dependent Claim
62 words
An electrostatic treatment apparatus of an object matter comprising an electric field device consisting of a dielectric body formed into a suitable shape with a fine ceramic material and electrodes for forming electric field which have been formed as an integral part thereof, the electric field forming surface of said electric field device being directed to an object matter to be treated.
Claim 82
Dependent Claim
62 words
An electrostatic treatment apparatus of an object matter comprising an electric field device consisting of a dielectric body formed into a suitable shape with a fine ceramic material and electrodes for forming electric field which have been formed as an integral part thereof, the electric field forming surface of said electric field device being directed to an object matter to be treated.
Claim 83
Dependent Claim
66 words
An electrostatic treatment apparatus of an object matter according to claim 71 wherein an electrode which has been integrally formed in said dielectric body comprises a planar electrode (9) embedded within said dielectric . body, said planar electrode (9) is connected to a D.C. high voltage source (30), and said object matter to be treated is a coloring toner adhered to a grounded magnet (262) .
Claim 84
Dependent Claim
45 words
An electrostatic treatment apparatus of an object matter according to claim 72 wherein electrodes which have been integrally formed in said dielectric body comprises a planar electrode (9) embedded within said dielectric body and linear electrodes (3), (4) and (5) disposed on the surface thereof.
Claim 85
Dependent Claim
56 words
An electrostatic treatment apparatus of an object matter according to claim 71 wherein said electrode comprise a planar electrode embedded within said dielectric body, and a sheet material on which a figure or letters will be depicted with a grounded metal pen is laid on the upper electric field forming surface of said electrid field device.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.