序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Method for electrostatically depositing a medicament powder upon predefined regions of a substrate US733525 1996-10-18 US6074688A 2000-06-13 Timothy Allen Pletcher; Pabitra Datta; Christopher Just Poux; Randall Eugene McCoy
Method for electrostatically depositing select doses of medicament powder at select locations on a substrate. Specifically, the apparatus contains a charged particle emitter for generating charged particles that charge a predefined region of a substrate and a charge accumulation control circuit for computing the amount of charge accumulated upon the substrate and deactivating the emitter when a selected quantity of charge has accumulated. Additionally, a triboelectric charging apparatus charges the medicament powder and forms a charged medicament cloud proximate the charged region of the substrate. The medicament particles within the medicament cloud electrostatically adhere to the charged region. The quantity of charge accumulated on the substrate at the predefined region and the charge-to-mass ratio of the medicament powder in the cloud control the amount (dose) of medicament deposited and retained by the substrate. Consequently, this apparatus accurately controls both medicament dosage and deposition location. Furthermore, since the substrate can be of any dielectric material that retains an electrostatic charge, the apparatus can be used to deposit medicament on substrates that are presently used in oral medicament consumption, e.g., substrates that are used to fabricate suppositories, inhalants, tablets, capsules and the like.
162 Electrostatic coating process US115880 1998-07-15 US6032871A 2000-03-07 Gunter Borner; Hans Christoph Nienburg; Jorg Sopka
Workpieces are electrostatically coated with powder materials. It is possible to attain a relatively large coating thickness in a single operation by simultaneously or alternately coating with powder particles that have a different electrical charge. The process can be used in applying single-component or multi-component coating materials.
163 Use of porous beads as a tip for nano-electrospray US78473 1998-05-14 US5975426A 1999-11-02 Peter Myers
A durable electrospray needle uses a capillary having a substantially large outside diameter. Provision of a porous bead at the spray tip advantageously allows a fine electrospray to be formed without the need for finely machining a needle tip and orifice, which allows for economical construction. Further, because the bead itself may serve as the anode in an electrospray field circuit, costs associated with electrode placement are eliminated.
164 Method for applying a cosmetic agent by electrostatic spraying US949858 1997-10-14 US5945111A 1999-08-31 Isabelle C. Esser
A method of delivering a cosmetic agent to the body, comprising electrostatically spraying thereon a cosmetic composition comprising said cosmetic agent, the composition having a resistivity of less than 10.sup.4 ohm cm. Apparatus for carrying out the method comprises a reservoir for the composition, delivery means, a voltage generator, and control means for applying the voltage from the generator to the delivery means to electrostatically spray the composition. The cosmetic agent may comprise an antiperspirant or other type of personal cosmetic product.
165 Method of and apparatus for coating photoresist film US574139 1995-12-18 US5863619A 1999-01-26 Ik Boum Hur
A method of and an apparatus for coating a photoresist film over a wafer, capable of eliminating local non-uniformity of the photoresist film and uniformly controlling the thickness of the photoresist film. The method includes the steps of vaporizing and injecting a liquid photoresist material to form photoresist particles, electrically charging photoresist particles, establishing an electric field in an area where the photoresist particles flow, thereby deflecting the photoresist particles, and selectively taking the photoresist particles passing through a desired zone, and depositing the selected photoresist particles over the wafer. The apparatus includes a Venturi tube for pumping up a liquid photoresist material and injecting the pumped photoresist material in a vapor phase, a first insulating tube adapted to disperse the photoresist particles formed upon injecting the liquid photoresist material, electrodes coupled to a voltage source and adapted to deflect the flow direction of the photoresist particles, a second insulating tube adapted to pass the photoresist particles deflected by the electrode therethrough, and a third insulating tube adapted to take only a portion of the photoresist particles emerging from the second insulating tube.
166 Method and apparatus for creating a free-form three-dimensional article using a layer-by-layer deposition of a support material and a deposition material US525000 1995-09-08 US5617911A 1997-04-08 Robert A. Sterett; Atul M. Sudhalkar
A method and apparatus for the accurate formation of a three-dimensional article comprises providing a supply of substantially uniform size droplets of a desired material wherein each droplet has a positive or negative charge. The supply of droplets is focused or aligned into a narrow stream by passing the droplets through or adjacent an alignment means which repels each droplet toward an axis extending through the alignment means. The droplets are deposited in a predetermined pattern at a predetermined rate onto a target to form the three-dimensional article without a mold of the shape of the three-dimensional article. A supply of support material is provided in a predetermined pattern adjacent the deposited droplets. The support material receives a further supply of droplets which form a part of the three-dimensional article.
167 Methods and apparatus for dispersing a fluent material utilizing an electron beam US438696 1989-11-17 US5093602A 1992-03-03 Arnold J. Kelly
Apparatus for dispersing a fluent material such as a liquid includes a device for discharging a stream of the fluent material and a device for providing energetic electrons such that the electrons impinge on the fluent material to provide a net negative charge on the fluent material in the discharged stream. The fluent material discharged is dispersed at least partially under the influence of the net negative charge so imparted. The electron-supply device includes a chamber separated from the fluid passageway by an electron-permeable membrane, and may also include an electron gun for generating a beam of energetic electrons such that the electron beam passes through the window and impinges on the fluent material. The electrons may impinge on the fluent material as the fluent material is discharged from the device so that the fluid flow carries the charged portions of the fluent material away from the device. The apparatus may be used to atomize liquids even where the liquids are electrically conductive.
168 Ocular treatment US514952 1990-04-26 US5053000A 1991-10-01 Christopher G. Booth; Raymond C. Rowe
A method of administering less than 20 .mu.l of a solution of an ophthalmically effective substance to the eye characterized in that the formulation has a viscosity and resistivity which makes it suitable for electrodynamic spraying, and the formulation is supplied to a spray nozzle wherein a sufficiently large electrical potential, relative to earth, is applied to the formulation that a sufficient electrical gradient is provided at the spray nozzle to atomize the formulation as a spray of electrically charged droplets. Also liquid solution formulations of opthalmically effective substances for use in the method of the invention; and electrodynamic spraying apparatus, convenient for hand held use, for use in the method of the invention.
169 Evaporation source with a shaped nozzle US14318 1987-02-13 US4812326A 1989-03-14 Hisashi Tsukazaki; Kenichiro Yamanishi; Seiji Yasunaga
An evaporation source in which an evaporation material is vaporized and jetted through a nozzle having a gradually opening cross-section, whereby the size of atom clusters of the jetted vapor can be controlled.
170 Electrostatic painting gun US89769 1987-08-27 US4779804A 1988-10-25 Youichiro Baba; Hirofumi Hashimoto; Kenji Tamura
An electrostatic painting gun for painting minute places which are hard to reach is disclosed. The electrostatic painting gun includes a bent rod-shaped gun and a bracket which are arranged so as to form a trapezoid-like pocket space. The trapezoid-like pocket space serves to provide the electrostatic painting gun with better accessibility to the minute places.
171 Modified spray guns for vaporous amine-assisted spray coatings and method therefor US930721 1986-11-13 US4771946A 1988-09-20 Timothy Y. Moy; Jeffery W. Radcliff
Disclosed are modified spray guns, particularly electrostatic spray guns, for implementation of the vaporous amine catalyst spray method disclosed in U.S. Pat. No. 4,517,222. In particular, the present invention broadly is directed to a spray gun for spraying atomized liquid, e.g. vapor permeation curable paint, with the assistance of a vaporous amine flow via an amine flow path established in the spray gun wherein the improvement comprises a control apparatus actuable in the absence of the vaporous amine flow to cause a heated non-amine gas, preferably heated air, to flow through and purge the amine flow path within the gun for maintaining a desired flow path temperature adequate for suppressing amine condensation in the flow path. The spray gun can be a hand spray gun or an automated spray gun utilizing air atomization or mechanical atomization, operating under electrostatic spray conditions if desired. Specific techniques for implementing the purge air technique of the present invention adaptable for a variety of conventional spray guns are disclosed in detail.
172 Method and apparatus for lubricating molding tools US326168 1981-11-30 US4388343A 1983-06-14 Gunther Voss; Peter Gruber
A method and apparatus for the coating of molding tools which comprises dispersing liquid or suspended lubricant in directional manner before each pressing operation in discrete, specific droplets onto the pressing zones of the molding tools, said dispersing being effected by means of f.i. piezoelectric transducers.
173 Electrostatic atomizing device US853499 1977-11-21 US4255777A 1981-03-10 Arnold J. Kelly
This invention relates to an electrostatic atomizing device and a process thereof for the formation of electrostatically charged droplets having an average diameter of less than about 1 millimeter for a liquid having a low conductivity wherein the device includes a cell having a chamber disposed therein, a discharge spray mechanism in communication with the cell, the liquid in the chamber being transported to the discharge spray mechanism and atomized into droplets, and a mechanism for passing a charge through the liquid within the chamber, wherein the charge is sufficient to generate free excess charge in the liquid within the chamber.
174 Device and method for moistening and/or discharging electrically insulating objects and materials US893340 1978-04-04 US4219864A 1980-08-26 Hans Grunenfelder; Hermann Kunzig
A device for moistening and discharging electrically insulating objects, comprises, an atomizer for atomizing a liquid, such as water, into a spray and for directing the spray through a path and onto the object. The spray is directed through a path which is provided with an electrode charger or a group of chargers arranged in a pattern for charging the spray particles with a charge opposite to the object so that when they contact the object, they discharge the object as well as moisten it. The device is usable in the printing industry by passing a paper web which has been either previously printed or will be printed through a path after it has been charged with a charge, such as a positive charge, and then directing a spray onto the web after the spray moves through a series of electrodes to impart an opposite charge to the spray particles from that of the paper, so that the particles both moisten the paper and discharge the charge therefrom when they are directed thereto. The apparatus advantageously includes a spray nozzle for spraying water using an air source and for directing the spray which is formed through a tubular element having a plurality of sharp pointed electrodes arranged there to project into the tubular element and provide charges of the particles which pass therethrough.
175 Passing atomized liquid through magnetic field for improved spray washing US30405472 1972-11-06 US3837915A 1974-09-24 ERB G
A method of cleaning objects such as surfaces of a vehicle and the like by passing a washing fluid, such as water, which may contain a washing agent, through an atomizing nozzle to form an atomized jet and then passing the atomized jet through a magnetic field which is preferably at right angles to the axis of the jet so as to induce voltages in the drops of the atomized jet and then impinging the jet against the surface to be cleaned so that the cleaning is more effective by equalizing the electrostatic charges bonding the dirt particles to the surface to be cleaned.
176 Electrostatic precipitation process US29975863 1963-08-05 US3342621A 1967-09-19 POINT MARCEL A R; GUY NICOLAS
177 Electrostiatic coating apparatus employing supersonic vibrations US5002860 1960-08-16 US3114654A 1963-12-17 SHIZUO NISHIYAMA; HISAO TAKAGI; TARO ANZAI; SEIKO HAGA
178 Atomizer for liquid and pulverulent material US41665254 1954-01-26 US2772117A 1956-11-27 INGE RITZAU; BALTHASAR HOFLER
179 DROPLET-MASS SPECTROMETER INTERFACE PCT/US2014040358 2014-05-30 WO2014194272A3 2015-03-12 CHIU DANIEL T; HAKIMI BEJAN; LIU DINGSHENG; TURECEK FRANTISEK; VOLNY MICHAEL; ROLFS JOELLE
The present disclosure describes devices and methods capable of generating multi¬ phase emulsions, including double emulsion droplets in a gas phase. The present disclosure also describes interfaces for coupling a multi-phase emulsion droplet source to an analytical instrument such as a mass spectrometer. The present disclosure further describes methods, systems, and apparatuses for using the devices and interfaces described to perform analysis, including mass spectrometry. The present disclosure also describes methods, systems, and apparatuses for generating and using multi-phase emulsions to perform analysis.
180 NOZZLE ASSEMBLY AND METHODS RELATED THERETO PCT/US2007014406 2007-06-20 WO2008002437A2 2008-01-03 SWENSON JENNIFER; MCKENNA EDWARD
Embodiments of the invention relate to a nozzle assembly for electrostatic deposition comprising a single point nozzle, the single point nozzle being conically shaped and including an apex and a circular base, the circular base including a smaller diameter cylindrical protrusion including a counter bore which connects to a passage leading to the apex; and a nozzle body, in contact with the single point nozzle and including a first through bore, a larger second through bore and a cross drilled port into the first through bore; and a cylindrical electrode, at least partially inserted within the first through bore of the nozzle body and in contact with the counter bore of the single point nozzle, the electrode including a bore mating aligned with the cross drilled port of the nozzle body, and inlets positioned at either end.
QQ群二维码
意见反馈