With Tank Structure, Liquid Supply, Control, And/or Nonradiant Heating Means Patents (Class 118/429)
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Patent number: 5935332Abstract: A plant for preparing and feeding a coating composition to a coating head for paper or the like includes a plurality of hoppers, each hopper being intended to receive and deliver one ingredient of the composition. The plant further includes a premixer tank which is fed by the hoppers and mixes and homogenizes the formed composition and a homogenizing tank, fed by the premixer tank, having a high-speed stirrer for shearing the composition. A buffer capacity is directly and continuously fed by the homogenizing tank and connected to the coating head, wherein the buffer capacity preferably has a volume and an attached level detector for determining when the composition in the buffer capacity is below a predetermined level. A set of controllers attached to the level detector control the delivery of components from the plurality of hoppers.Type: GrantFiled: February 28, 1997Date of Patent: August 10, 1999Assignee: Cellier Groupe S.A.Inventor: Jean-Paul Caucal
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Patent number: 5932077Abstract: A wet process apparatus, e.g., plating cell for plating a flat substrate introduces a flow of electrolyte or other plating solution across the surface of the substrate to be plated. The substrate is mounted on a holder that is positioned on a door that swings between a horizontal open position and a vertical closed position. There is a circular opening in a front wall against which the door seats. The door can have a sealing ring that contacts the wall of the cell outside of the opening. A cathode ring disposed in a recess in the periphery of the opening makes electrical contact with the substrate. The cathode ring can include a thin metal thieving ring. A fluid-powered rotary blade or wiper within the plating chamber rotates to draw bubbles or other impurities from the substrate, and a megasonic transducer applies megasonic acoustic energy to the solution, e.g., at 0.2 to 5 Mhz. The cell can be used for electroless or galvanic plating.Type: GrantFiled: February 9, 1998Date of Patent: August 3, 1999Assignee: Reynolds Tech Fabricators, Inc.Inventor: H. Vincent Reynolds
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Patent number: 5913976Abstract: The invention comprises a fixture and method for holding optical waveguid such as fiber optic cable, in a relatively stable fashion for processing. The fixture includes a first frame and a second frame, releasably securable to the first frame to form a unitary structure. Chambers disposed in at least one of the frames are adapted for removably receiving optical fiber cable when the first and second frames are released from one another and for securely retaining with molding material optical fiber cables when the first and second frames form the unitary structure. A process area is defined in the unitary structure such that segments of optical fiber cables secured therein are accessible in the process area for processing. An optional coating fixture is securable to said unitary structure for forming with a molding material a protective coating about the cable segments in the processing area.Type: GrantFiled: September 9, 1996Date of Patent: June 22, 1999Assignee: The United States of America as represented by the Secretary of the NavyInventors: Scott L. Patton, Robert M. Payton
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Patent number: 5901899Abstract: The invention relates to a wave soldering machine with at least one device for generating at least one solder wave (10a) consisting of liquid solder (10) for wetting assembled units (22) which are conducted over the solder wave (10a). To achieve a reproducible adjustment and control of the wave height (24), it is proposed to mount at least one temperature-compensated pressure sensor (18) in the transport path of the solder (10), preferably in the immediate vicinity of the nozzle opening (13).Type: GrantFiled: September 24, 1996Date of Patent: May 11, 1999Assignee: U.S. Philips CorporationInventor: Norbert Flache
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Patent number: 5902402Abstract: A device for chemical wet treatment of substrates has a tank containing a treatment fluid for treating the substrates. At least one substrate carrier for supporting the substrates within the tank is provided. At least one substrate lifting device for lifting the substrates off the substrate carrier is provided. A lifting apparatus for lifting and lowering the substrate carrier is positioned in the tank. The lifting apparatus has a first transport carriage connected to the substrate lifting device and a second transport carriage connected to a holder of the substrate carrier. The first and second transport carriages are connected to one another by a jointed connection.Type: GrantFiled: July 3, 1997Date of Patent: May 11, 1999Assignee: Steag Microtech GmbHInventors: Johann Durst, Holger Sigel, Werner Schulz
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Patent number: 5897756Abstract: A device in the form of a flow cell for the chemical or electrolytic surface treatment of plate-shaped articles has first feed elements in the form of tubes with outlet openings for the directed supply of a process liquid to the articles to be treated and, in accordance with the invention, additional, second feed means in the process liquid for the directed introduction of air into the active area of guide elements, which consist of flow gratings, maintained at a distance on both sides of the articles to be treated, with small plates arranged in the manner of a shutter, which are inclined upward and downward in the direction parallel with the main plane of the flat plate articles.This principle of admixing air in connection with the design of the guide elements as flow gratings has the effect that the emerging air bubbles pass the flow gratings in an upward direction and carry the surrounding process liquid along.Type: GrantFiled: June 26, 1997Date of Patent: April 27, 1999Assignee: Lea Ronal GmbHInventor: Karl Hans Fuchs
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Patent number: 5888361Abstract: A simply configured cooling mechanism for an apparatus for producing hydrogen and oxygen is disclosed. The configuration makes it possible to freely select the type of heat exchanger, without any restrictions, in order to improve cooling efficiency. In particular, a heat exchanger for cooling deionized water in a deionized water tank, which contains an electrolytic cell, is installed outside the tank. An inlet to the heat exchanger is connected to a deionized water flow outlet from the tank that is below the level of the deionized water the tank by a pipe, and an outlet from the heat exchanger to tank is connected to a deionized water flow inlet that is positioned in the tank below the deionized water flow outlet.Type: GrantFiled: May 5, 1997Date of Patent: March 30, 1999Assignee: Shinko Pantec Co., Ltd.Inventors: Kiyoshi Hirai, Shinichi Yasui, Hiroko Kobayashi, Teruyuki Morioka, Akiko Miyake, Hiroyuki Harada
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Patent number: 5882408Abstract: A coating system of a liquid to a sheet material. The system includes a tank 1, a feed pump 4, a feed control valve 8 including a liquid drawing or sucking back mechanism, and a slit die 9 for applying the liquid to the sheet, which are connected with each other by means of a first, second and a third feed conduits 3, 5 and 7. A first return conduit 11 with a return control valve 10 and a second return conduit 12 are provided between the feed pump 4 and the feed control valve 8 for returning the liquid to the tank 1. Electromagneticvalves 15 and 17 operated by a control apparatus 22 are provided for switching instantaneously the conduits between the feed control valve and the return control valve 10.Type: GrantFiled: September 4, 1997Date of Patent: March 16, 1999Assignee: Toray Engineering Co., Ltd.Inventor: Kazuhiko Fujita
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Patent number: 5879738Abstract: An apparatus and method for treating the walls of apertures passing through a planar substrate with a fluid treatment solution. The method comprises placement of a pressurized fluid wedge beneath, above, or both beneath and above a planar substrate as it passes through a treatment chamber. The apparatus that forms the fluid wedge is a roller assembly comprising a roller within a shroud which carries fluid as it rotates through a gap between the roller and the shroud. The roller provides the dual function of forming the fluid wedge and conveying the planar substrate through the treatment chamber.Type: GrantFiled: May 21, 1997Date of Patent: March 9, 1999Assignee: Allan H. McKinnonInventors: Allan H. McKinnon, Charles R. Kidd, Michael Gulla
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Patent number: 5871585Abstract: An apparatus that comprises a body including a reservoir adapted for receiving a quantity of fluid and a plurality of fluid distribution channels each having a length and a cross-sectional area and being in fluid communication with and extending from the reservoir from a first end and terminating at a second, distal end in an orifice. The apparatus further comprises a distribution chamber in the body for commonly receiving the fluid exiting each of the orifices, for merging the fluid exiting each of the orifices into at least one continuous coating stream, and for equalizing the pressure of the fluid, the distribution chamber having a first side in fluid communication with the plurality of fluid distribution channels and a second side that is open to allow the fluid to exit the body for uniform distribution onto the web.Type: GrantFiled: March 20, 1996Date of Patent: February 16, 1999Assignee: Minnesota Mining and Maufacturing CompanyInventors: Ronald W. Most, Terrence E. Cooprider
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Patent number: 5868861Abstract: The present invention provides for a semiconductor bath system which has a tank, a housing which joins the tank, and a seal for the joint between the housing and the tank. A porous conduit is placed in close proximity with the seal. A pump drives washing fluid through the conduit and through the walls of the conduit so that the fluid irrigates the seal to preserve its integrity.Type: GrantFiled: May 23, 1997Date of Patent: February 9, 1999Inventor: Henry R. Miranda
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Patent number: 5865894Abstract: A plating cell adapted for electro-less plating of articles, for example, semiconductor wafers contained in a carrier or "boat", incorporates a megasonic transducer in the plating cell and a rotational drive supporting the wafer carrier in the plating cell. The megasonic transducer applies acoustic energy at megasonic frequencies to the solution in the cell during a plating operation, and the carrier is rotated at a suitable speed, e.g., 45 to 60 r.p.m. A rapid drain is provided to remove the solution from the cell quickly at the end of a plating operation, and a pair of spray tubes with a series of spray nozzles rinses the wafers with de-ionized water. Spargers at the base of the cell inject the plating solution, which proceeds generally upwards in a laminar flow, and spills over a spillway at the top of the plating tank. The spillway comprises a series of triangular teeth which avoid waves or turbulence.Type: GrantFiled: June 11, 1997Date of Patent: February 2, 1999Assignee: Reynolds Tech Fabricators, inc.Inventor: H. Vincent Reynolds
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Patent number: 5860582Abstract: An inert atmosphere spot soldering process and apparatus uses pockets arranged to match the arrangement of the terminals to be soldered. The pockets are filled to over flowing with liquid solder by lowering the pockets below the surface of the molten solder in a solder pot. A flow of hot inert gas is provided through orifices adjacent the pockets. The terminals and their surrounding area are exposed to the hot inert gas for a period sufficient to drive off substantially all volatile liquids and the terminals are then immersed in the solder to a depth determined by the menicus of the solder in the pockets. After immersion, the terminals are seperated from the solder surface and the flow of inert gas is terminated after permitting the solder to solidify. The inert gas may be heated by thermal conduction from the liquid solder.Type: GrantFiled: December 10, 1996Date of Patent: January 19, 1999Inventor: William Sund
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Patent number: 5853496Abstract: A transfer machine having a pair of holding members disposed opposite to each other to hold a plurality of objects arranged at their peripheral edges. A drive mechanism selectively moves the holding members toward and away from each other in order to selectively hold and release the objects by the holding members. A transfer mechanism transfers the objects and the holding members to a bath in order to process the objects in the bath. Each of the holding members has a plurality of holding notches for holding the peripheral edges of the objects, and the notches are disposed in upper and lower holders which are arranged parallel to each other. The holding notches of the upper holder have a first taper part positioned adjacent an opening of the notch and a second taper part positioned adjacent a notch bottom, and the first taper part has an opening angle larger than an opening angle of the second taper part.Type: GrantFiled: August 2, 1996Date of Patent: December 29, 1998Assignee: Tokyo Electron LimitedInventor: Yoshiyuki Honda
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Patent number: 5843535Abstract: The invention relates to apparatus for use in a process in which a layer is formed on a surface of a workpiece and then forced into underlying voids. The apparatus for applying elevated pressure to the workpiece 1 comprises a chamber 103 (which includes a workpiece support 109a) means 108 for flooding the chamber 103 with liquid to immerse a workpiece 1 on the support 109a and means for applying a pulse of elevated pressure to the liquid and hence the workpiece. These means may include a liquid reservoir 102, which shares a common flexible wall 101 with the chamber 103, and electrodes 100 and 104 to which a high voltage pulse can be supplied to create a shock in the liquid of reservoir 102 which is transmitted to the liquid in 103 via the wall 101.Type: GrantFiled: October 2, 1995Date of Patent: December 1, 1998Assignee: Trikon Technologies LimitedInventor: Christopher David Dobson
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Patent number: 5843532Abstract: A method of coating a conduit outlet fitting is disclosed. In the method, a tooling plate is positioned between a cover and a body of the conduit outlet fitting. The tooling plate has a hanger tooling block and a plug tooling block affixed thereto and positioned inside the body when the tooling plate is positioned between the body and the cover. A hanger is passed through a conduit opening and attached to the hanger tooling block. A plug is passed through another conduit opening and attached to the plug tooling block. The hanger and the plug each have a cap disposed thereon for covering an external end of their respective conduit openings. The assembled structure is suspended from the hanger and dipped into a liquid protective coating material to form an external coating thereon. The cover, the body and the tooling plate cooperate to form complementary male and female seals on the cover and the body. The dip coated structure is removed from the coating material and cured.Type: GrantFiled: December 20, 1996Date of Patent: December 1, 1998Assignee: Robroy IndustriesInventor: John Joseph Dodds
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Patent number: 5843700Abstract: Apparatus for processing tissue samples for histological examination comprises a cassette defining a chamber to receive a tissue specimen and having an opening to allow processing fluids to enter and leave the chamber and to allow, eventually, molten wax to enter the chamber for embedding the tissue sample. The apparatus incorporates a temperature-sensitive valve mechanism for closing said opening once the cassette, with the tissue specimen therein, has been immersed in a container of hot molten wax, so that the wax can be retained in the cassette, around the specimen, when the cassette is withdrawn from the molten wax container, until the wax around the specimen has solidified. The temperature sensitive valve mechanism may comprise a shape-memory element.Type: GrantFiled: January 29, 1998Date of Patent: December 1, 1998Assignee: Shandon Scientific LimitedInventors: Ian Michael Kerrod, George Alan Walton
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Patent number: 5843230Abstract: An improved applicator die for alternately depositing different liquid coating materials on a moving web comprises a die body having switch bars for opening and closing respective flow passageways for supplying the different liquid coating materials to an elongated coating orifice from respective manifolds. The switch bars, flow passageways and manifolds are substantially as wide as and substantially parallel to the coating orifice of the die whereby changeover between different coating materials can be made very rapidly.Type: GrantFiled: July 2, 1996Date of Patent: December 1, 1998Assignee: Avery DennisonInventors: Bert Potjer, Luigi Sartor, Robert Lindsay Druschel
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Patent number: 5833816Abstract: The printed circuit boards (LP) are conducted through treatment baths (BB1 through BB3) in vertical attitude on at least two horizontal conveying paths (TW1 through TW4) proceeding next to one another, these treatment baths being accommodated in treatment cells (BZ10 through BZ13, BZ20 through BZ23, BZ30 through BZ33) that are arranged successively and next to one another. The end walls of the treatment cells are provided with vertical slots (S) and allocated seals (D) for the passage of the printed circuit boards. The bath liquid emerging from treatment cells arranged next to one another is collected in common collecting tanks (AW1 through AW3) and is returned into the treatment cells with the assistance of pumps (P). A common treatment cell for treatment zones lying next to one another can also be provided in a common collecting tank. The conveying of the printed circuit boards on the conveying paths lying next to one another preferably ensues with a common conveyor device.Type: GrantFiled: November 12, 1996Date of Patent: November 10, 1998Assignee: Siemens S.A.Inventors: Marcel Heermann, Daniel Hosten
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Patent number: 5824157Abstract: The invention involves a fluid treatment device to solution or melt impregnate a resin or polymer or any combination thereof into a reinforcement which can be utilized to fabricate composite materials for laminates, circuit boards, structural/aerospace materials, automotive components, etc. The invention offers significant advantages and benefits over existing methods and equipment and allows the impregnation process to be performed at lower cost and higher efficiency with increased environmental safety.Type: GrantFiled: September 6, 1995Date of Patent: October 20, 1998Assignee: International Business Machines CorporationInventors: Elizabeth F. Foster, Jeffrey C. Hedrick, Robert M. Japp, Konstantinos Papathomas, Stephen L. Tisdale, Alfred Viehbeck
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Patent number: 5816474Abstract: The linear motor pump for a wave soldering apparatus comprises in accordance with the invention several pumping channels arranged substantially parallel to each other and separate from each other. It includes preferably a multiply segmented stator. Each stator segment has one pumping channel allocated to same. By means of this a homogeneous pumping performance i.e. homogeneous pumping pressure distribution over a practically arbitrary width is achieved, which leads to a homogeneous solder wave. By the arrangement of the pumping channels and the design of the stator in accordance with the invention a turbulent whirling of the solder is made practically impossible.Type: GrantFiled: October 29, 1996Date of Patent: October 6, 1998Assignee: Kirsten AGInventor: Karl Flury
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Patent number: 5814265Abstract: A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: June 6, 1995Date of Patent: September 29, 1998Assignee: 3D Systems, Inc.Inventor: Charles W. Hull
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Patent number: 5795625Abstract: A coating method and apparatus for applying a liquid coating solution containing suspended particulates to a moving web which eliminates areas of stagnation in the reservoir pan thereby resulting in a relatively even application of the particulates to the web. The web is continuously passed through the reservoir pan while supported on a rotatable backing drum. The liquid coating solution is delivered to the coating pan through a distribution conduit a distribution conduit disposed within the reservoir pan generally parallel to the discharge weir of the reservoir pan. The distribution conduit includes a plurality of spaced apart orifices therein to deliver the liquid coating composition in a pair of end streams and a plurality of intermediate streams traveling toward the discharge weir. The distribution conduit is fed from both ends thereof resulting in the end streams flowing at a greater velocity than the intermediate streams.Type: GrantFiled: July 16, 1996Date of Patent: August 18, 1998Assignee: Eastman Kodak CompanyInventors: James Michael Spiegel, Trevor Dean Huls, James Michael Peck
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Patent number: 5776409Type: GrantFiled: September 1, 1994Date of Patent: July 7, 1998Assignee: 3D Systems, Inc.Inventors: Thomas A. Almquist, Dennis R. Smalley
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Patent number: 5772765Abstract: The flat workpieces (W) are conveyed in the vertical position on a horizontal transport path through at least one processing cell (BZ) that contains a processing bath, vertical slots (S) for the passage of the workpieces (W) being provided in the end walls of the processing cell (BZ). Bars or rods which are arranged in pairs in the processing bath, such that they are loose in the vertical direction, are assigned in pairs to the slots (S) as seals (D) and are pressed by the liquid pressure against one another or against the workpiece (W) respectively passing through, and against the assigned end wall of the processing cell (BZ). Seals (D) having a circuilar cylindrical cross section rotate while the workpieces (W) are passing through. The seals (D) are preferably arranged in end chambers (SK) which are fitted at the ends to the processing cells.Type: GrantFiled: November 12, 1996Date of Patent: June 30, 1998Assignee: Siemens S.A.Inventor: Daniel Hosten
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Patent number: 5766357Abstract: An apparatus for fiber impregnation for use in a fiber placement system is disclosed. Resin is impregnated in the fiber rovings as they pass through a manifold. The manifold includes grooves for the fibers to travel, a reservoir to receive the resin and channels for the resin to flow to the individual fibers for impregnation. A control system measures and monitors the fiber speed and then mixes, pumps and delivers the desired quantity of resin to the tows for impregnation.Type: GrantFiled: September 19, 1996Date of Patent: June 16, 1998Assignee: Alliant Techsystems Inc.Inventors: Bradford P. Packer, Michael L. Rhodes, Russell H. Montgomery, Roger D. Holstein
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Patent number: 5762257Abstract: The present invention pertains to a device for the flux-free soldering of printed circuit boards guided over the soldering wave of a wave soldering nozzle, wherein the solder is vibrated by means of at least one ultrasonic electrode (sonotrode), the surface of the sonotrode is directly rinsed by the soldering wave, and the printed circuit boards are guided just above the surface of the sonotrode. It is provided that the surface (12, 28) of the sonotrode (5, 21) forms at least a partial area of the surface of the wave former (11, 13) of the wave soldering nozzle (2, 22).Type: GrantFiled: August 29, 1995Date of Patent: June 9, 1998Assignee: ERSA Lottechnik GmbHInventor: Ewald Garrecht
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Patent number: 5750186Abstract: The present invention relates to coating and printing methods for the deposition of aqueous compositions. The composition may be adapted to any method without the need to change its chemical content. Viscosity is determined and adjusted by raising and lowering the temperature. High gloss value, increased film integrity and enhanced mar resistance result.Type: GrantFiled: January 15, 1997Date of Patent: May 12, 1998Inventor: Joseph Frazzitta
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Patent number: 5736014Abstract: The device for the selective treatment of the surface of workpieces by flooding the workpieces with a treatment liquid comprises a bath (1), interchangeable holders (10) in the bath for the workpieces, at least one pip (15-21) leading into the bath (1) taking the liquid to the holders (10) and at least one outlet pipe (26) for the liquid leaving the bath (1). The holders (10) are fitted on an extractor (7) and in the side walls of the bath (10) there is a closable access (31) through which the extractor (7) can be removed.Type: GrantFiled: April 1, 1996Date of Patent: April 7, 1998Assignee: Stohrer-Doduco GmbH & Co.Inventors: Hermann A. Drese, Werner Emde, Klaus Knorr
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Patent number: 5728217Abstract: The covered seed hardening apparatus of this invention has a construction suited for performing simultaneous parallel processes of hardening the gelling agent of seeds. The seeds covered with the gelling agent are dropped from the valves (73b) of the gel covering section (7) into the liquid hardener in the front half of the feed liquid tank (111a) on the reaction tank (111b) side of the flow regulating barrage (111g) in the hardening tank (111) of the gel hardening section (11). The covered seeds immersed in the hardener are moved through the hardener in the guide direction Y by the guide paddles (113b) after the guide paddles (113b) dip into the hardener in the reaction tank (111b) on the feed liquid tank (111a) side until the guide paddles (113b) move to a point in the reaction tank (111b) near the inclined surface (111m) of the hardner stopping barrage (111k) and come out of the hardener.Type: GrantFiled: November 27, 1996Date of Patent: March 17, 1998Assignee: Yazaki CorporationInventors: Yasushi Kohno, Yoichi Ido, Kazushi Nakatsukasa
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Patent number: 5728218Abstract: The gel-covering apparatus has an inexpensive configuration that can supply the gelling agent to the seed covering portions under uniform pressure when performing simultaneously a plurality of same processes of covering the seeds with gelling agent. The gelling agent is supplied and filled into the closed spaces (73m) formed between the eight passages (73c) and the plungers (73h) in the nozzle block (73). The eight pressurizing air cylinders (77) connected to the eight gel supply passages (73B) communicating with the spaces (73m) are operated to pressurize the gelling agent in the spaces (73m) through the gel passages (75a) to cause the plungers (73h) in respective passages (73c) to move up, opening the valves (73b) at the lower ends of the passages (73c).Type: GrantFiled: November 27, 1996Date of Patent: March 17, 1998Assignee: Yazaki CorporationInventors: Yasushi Kohno, Yoichi Ido, Kazushi Nakatsukasa
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Patent number: 5725667Abstract: There is disclosed a dip coating apparatus including: (a) a single coating vessel capable of containing a batch of substrates vertically positioned in the vessel, wherein there is absent vessel walls defining a separate compartment for each of the substrates; (b) a coating solution disposed in the vessel, wherein the solution is comprised of materials employed in a photosensitive member and including a solvent that gives off a solvent vapor; and (c) a solvent vapor uniformity control apparatus which minimizes any difference in solvent vapor concentration encountered by the batch of the substrates in the air adjacent the solution surface, thereby improving coating uniformity of the substrates.Type: GrantFiled: March 1, 1996Date of Patent: March 10, 1998Assignee: Xerox CorporationInventors: Mark C. Petropoulos, Geoffrey M. T. Foley, Eugene A. Swain, David J. Kilmer, Mark S. Thomas, Stanley J. Pietrzykowski, Jr., Robert S. Foltz, Peter J. Schmitt, Richard P. Millonzi
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Patent number: 5720815Abstract: A dip coating apparatus is disclosed including: (a) a single coating vessel capable of containing a batch of substrates vertically positioned in the vessel, wherein there is absent vessel walls defining a separate compartment for each of the substrates; (b) a coating solution disposed in the vessel, wherein the solution is comprised of materials employed in a photosensitive member and including a solvent that gives off a solvent vapor; and (c) a solution displacement apparatus positioned in the vessel to reduce the volume of solution required for dip coating the substrates.Type: GrantFiled: March 1, 1996Date of Patent: February 24, 1998Assignee: Xerox CorporationInventor: Eugene A. Swain
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Patent number: 5695560Abstract: The invention relates to a system for applying mortar to a row of masonry units and provides for the use of a pair of supporting structures between which a straight beam extends. The straight beam allows to build consecutive rows of masonry units along a vertical plane. A mortar dispensing container is supported by rollers which move along a top surface of a masonry unit, the container being provided with a pair of elongated slots, through which mortar is dispensed in uniform ribbons.Type: GrantFiled: May 14, 1996Date of Patent: December 9, 1997Assignee: Kenneth A. SoulantInventor: Rodney J. Hession
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Patent number: 5695559Abstract: An abrasive flap brush including a central core, a layer of adhesive disposed on the peripheral surface of the core by a coater, and a plurality of abrasive flaps adhered to the core by the adhesive. The adhesive is uniformly distributed around the core by providing either the core or the adhesive coater with spacing projections that maintain a predetermined minimum distance between the coater and the core when the adhesive is applied. A coater including the spacing projections is also disclosed, as is a method for making an abrasive flap brush.Type: GrantFiled: June 10, 1996Date of Patent: December 9, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Jeanne M. Carr, Jeffrey R. Clampitt, Dean R. Zimmerman
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Patent number: 5693144Abstract: Methods and apparatus for providing a vibrational enhancement to the recoating process in stereolithography are disclosed. The formation of a thin layer of building material over a previous layer of structure of a partially completed three-dimensional object, in preparation for formation of an additional layer of structure, is enhanced by the use of vibrational energy imparted to the building medium. In a first preferred apparatus, vibration is induced into the surface of the material by a plurality of vibrating needles that penetrate below the working surface to a sufficient depth to ensure adequate coupling but not deep enough to come into contact with the surface of the partially completed part. In a second preferred apparatus, vibration is coupled directly to the object support. The vibrational energy is then transmitted through the part to the surface of the building material.Type: GrantFiled: February 3, 1995Date of Patent: December 2, 1997Assignee: 3D Systems, Inc.Inventors: Paul F. Jacobs, J. Scot Thompson, Hop D. Nguyen, Dennis R. Smalley
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Patent number: 5693372Abstract: A process for dip coating drums comprising providing a drum having an outer surface to be coated, an upper end and a lower end, providing at least one coating vessel having a bottom, an open top and a cylindrically shaped vertical interior wall having a diameter greater than the diameter of the drum, flowing liquid coating material from the bottom of the vessel to the top of the vessel, immersing the drum in the flowing liquid coating material while maintaining the axis of the drum in a vertical orientation, maintaining the outer surface of the drum in a concentric relationship with the vertical interior wall of the cylindrical coating vessel while the drum is immersed in the coating material, the outer surface of the drum being radially spaced from the vertical interior wall of the cylindrical coating vessel, maintaining laminar flow motion of the coating material as it passes between the outer surface of the drum and the vertical interior wall of the vessel, maintaining the radial spacing between the outerType: GrantFiled: February 29, 1996Date of Patent: December 2, 1997Assignee: Xerox CorporationInventors: Alan B. Mistrater, Steven J. Grammatica, Peter J. Valianatos, Timothy J. Leenhouts, April M. Mattox, Rachael A. Forgit, John S. Chambers, Roger T. Janezic, Leslie B. Cummins, Richard C. Petralia, Edward C. Williams, Mark S. Thomas, John T. Dilko, John K. Williams
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Patent number: 5690741Abstract: In known pressure impregnating devices there is a chamber, which continuously narrows in the transport direction, between a cylinder around which the web to be impregnated loops, and the inner wall of a trough containing the impregnating agent. The impregnating agent is supplied to the chamber under high pressure, which is further increased in the chamber by dynamic effects. Sealing problems arise at the inlet and outlet slits as well as at the front faces because of the high pressure. Disruptions in the operation can be created by fluff coming loose from the paper web as well as by impregnating agent penetrating between the sliding faces. The new device is intended to remedy these disadvantages, and is provided with the seals have alternating narrow gaps and wide grooves in the form of a labyrinth seal. The grooves are have drain openings for the impregnating agent flowing through.Type: GrantFiled: March 27, 1996Date of Patent: November 25, 1997Assignee: Vits Maschinenbau GmbHInventors: Wolfram Durr, Ernst Klas, Udo Unger
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Patent number: 5683511Abstract: An apparatus for applying a liquid to threads of a yarn sheet. The apparatus comprises multiple thread wetting elements, each of which has at least one thread guide groove for each thread. In the thread guide groove the thread travels with the liquid and each thread guide groove has one associated liquid feed bore or groove for supplying the liquid to the thread guide groove. The liquid feed bore or groove terminates in the thread guide groove. There is a liquid distributor which is implemented as a support to which the thread wetting elements are attached and which supplies liquid feed to each liquid bore or groove. The separation of adjacent thread guide grooves is 2 to 30 mm, and adjacent thread guide grooves are different distances from the liquid distributor such that the thread guide grooves are offset in an alternating manner.Type: GrantFiled: March 8, 1996Date of Patent: November 4, 1997Assignee: Akzo Nobel NVInventors: Arnold Kremers, Helmut Knoll, Volker Knoll, Reiner Schmitt, Volker Ruschenbaum, Gerhard Grebing, Werner Tobergte, Hans-Joachim Schaupp, Gerhard Nitschke, Heinrich Wallraven
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Patent number: 5681391Abstract: Apparatus for dip coating comprising a drum having an outer surface to be coated, an upper end and a lower end, at least one coating vessel having a bottom, an open top and a cylindrically shaped vertical interior wall having a diameter greater than the diameter of the drum, an inlet at the bottom of the vessel, the inlet adapted to feed flowing coating fluid into the vessel, a mandrel adapted to maintain the outer surface of the drum in a concentric relationship with the vertical interior wall of the cylindrical coating vessel while the drum is immersed in the flowing coating material, the outer surface of the drum being radially spaced from the vertical interior wall of the cylindrical coating vessel, and at least one flow regulating member adapted to maintain laminar flow motion of the coating material as the fluid passes between the outer surface of the drum and the vertical inner wall of the vessel.Type: GrantFiled: February 29, 1996Date of Patent: October 28, 1997Assignee: Xerox CorporationInventors: Alan B. Mistrater, Steven J. Grammatica, Peter J. Valianatos, Timothy J. Leenhouts, April M. Mattox, Rachael A. Forgit, John S. Chambers, Roger T. Janezic, Leslie B. Cummins, Richard C. Petralia, Edward C. Williams, Mark S. Thomas, John T. Dilko, John K. Williams
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Patent number: 5681392Abstract: A reservoir for dipping a non-cylindrical flexible belt into a coating fluid so that an electrophotographic layer can be deposited onto its outer surface during a manufacturing process includes a non-cylindrical tank with an inlet located at one end. A coating fluid enters the bottom of the tank and moves past a flow divider located inside or just above the inlet. This divides the entering fluid into two substantially equal portions, so that the level of coating fluid inside of the tank rises uniformly. The coating fluid passes first through a porous membrane, and then through a perforated plate, both of which will reduce the velocity of the coating fluid, to ensure that the fluid has laminar flow characteristics once it reaches the top of the reservoir. Finally, the coating fluid passes through an annular shaped flow director which ensures that the layer which is deposited onto the outer surface of the flexible belt has a uniform thickness.Type: GrantFiled: December 21, 1995Date of Patent: October 28, 1997Assignee: Xerox CorporationInventor: Eugene A. Swain
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Patent number: 5665398Abstract: The present invention is directed to a system for providing an embedded tissue specimen subsequent to fluid treatment of the specimen and preparatory to histological examination. The system includes the combination of a cassette for use in the preparation of tissue specimens for histological examination and an embedding mold having a first cavity for receiving the treated specimen and a second cavity for receiving the cassette. The system includes means for dispensing a predetermined amount of molten wax into the embedding mold.Type: GrantFiled: November 20, 1995Date of Patent: September 9, 1997Inventor: James B. McCormick
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Patent number: 5665437Abstract: A process and a device for coating the surface of strip material, especially non-ferrous metal and steel strip, with a metal coating, wherein the material is conducted without reversal of direction through a container holding the molten coating material. The container has a passage duct below the level of the melting bath, in which induction currents are induced by an electromagnetic travelling field and produce, in interaction with the electromagnetic travelling field, an electromagnetic force for restraining the coating material. In order to stabilize the melt in the passage duct as well as in the container, and in order to attain, to a large extent, a counterbalance between hydrostatic and electromagnetic forces, a constant direct or alternating current field is directed opposite to the travelling field in the area near the container, damping the movement in the coating material.Type: GrantFiled: June 7, 1995Date of Patent: September 9, 1997Assignee: Mannesmann AktiengesellschaftInventors: Klaus Frommann, Walter Ottersbach, Werner Haupt, Vladimir A. Paramonov, Anatolij I. Tychinin, Anatolij I. Moroz, Boris L. Birger, Vladimir M. Foliforow
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Patent number: 5662969Abstract: A coating apparatus and method for applying a coating to a workpiece, comprising:a vessel to contain molten metal;an induction coil disposed about said vessel; and,temperature regulation means;wherein, in use, said induction coil induces a magnetic field within said vessel such that a meniscus of molten metal is formed above said vessel, through which said workpiece is passed for coating, whilst said temperature regulation means regulates temperature of said molten metal and/or controls the meniscus height of said meniscus.Type: GrantFiled: July 26, 1996Date of Patent: September 2, 1997Assignee: Graham GroupInventor: Ping Ling
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Patent number: 5660636Abstract: An apparatus for housing a plurality of applicators in a hygienic cavity and dispensing said plurality of applicators from said cavity. The apparatus includes a container for holding said plurality of applicators, a support structure for the plurality of applicators, a reservoir in fluid communication with the hygienic cavity, said reservoir being situated to facilitate wetting said plurality of applicators with said fluid during said dispensing; an aperture generally adjacent to said reservoir; said plurality of applicators traversing said aperture during said dispensing; and a dispenser structure actuable by a user from outside said container to engage at least one applicator of said plurality of applicators for causing advancement of said at least one applicator through said aperture to effect said dispensing.Type: GrantFiled: March 21, 1995Date of Patent: August 26, 1997Inventors: Gary A. Shangold, Joel Lippman
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Patent number: 5658619Abstract: A system and method for adhering resin to the exterior of the bottles includes a coating section, a flash-off section, and a curing section. In the coating section, the bottles are dipped in a solution of resin and solvent. Only the exterior of the bottles is coated. The bottles are fed from the coating section to the flash-off section where they will be conveyed along a zig-zag path. In the flash-off section, air will pass over the bottles in order to remove solvent from their exterior. The bottles are then fed to the curing section where they pass in front of a plurality of ultraviolet lights. The ultraviolet lights will cure the resin on the exterior of the bottles.Type: GrantFiled: January 16, 1996Date of Patent: August 19, 1997Assignee: The Coca-Cola CompanyInventors: Jonathan Kirschner, Acie Ray Fields, Stanley J. Puskarz, William Leonard Roy
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Patent number: 5658382Abstract: An arrangement for painting all sides of an elongated rigid object comprises a closed container containing in its bottom portion a paint mixture of binder, monomer and pigment. The elongated object passes through the closed container above the surface of the paint mixture to be coated on all sides by the paint mixture, followed by passage through an apparatus for drying the bottom surface of the object. The object is freely suspended while passing through the closed container and the drying apparatus for the bottom surface, and then is passed to a drying apparatus for the top surface of the object.Type: GrantFiled: December 13, 1995Date of Patent: August 19, 1997Inventor: Anders Lindblad
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Patent number: 5654041Abstract: A device for coating substrates with a capillary slot includes a component having a capillary slot with an outlet opening. A container filled with a coating fluid is provided. The component is positioned in the container such that the capillary slot communicates with the coating fluid and such that the coating fluid is supplied to the capillary slot. A device for moving vertically the outlet opening of the capillary slot relative to the container is also provided.Type: GrantFiled: October 25, 1995Date of Patent: August 5, 1997Assignee: Steag MicroTech GmbHInventors: Karl Appich, Manfred Stummer
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Patent number: 5651310Abstract: A device for applying an adhesive coating to an endless belt in a screen printing machine, and having a trough, a pump for filling the trough to a level such that the meniscus of the adhesive contacts the belt, a doctor blade for removing excess adhesive and a pressure bellows for adjusting the pressure at which the doctor blade contacts the belt.Type: GrantFiled: April 3, 1995Date of Patent: July 29, 1997Assignee: Stork Brabant B.V.Inventor: Henricus Gerardus Maria Kempen
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Patent number: 5651934Abstract: Apparatus and method for stereolithographically forming a three-dimensional object includes a vessel for holding a building material and a smoothing member for forming a uniform coating over a previously formed layer of the object. The smoothing member has a plurality of blades. The smoothing member is swept over a previously formed layer of the object, in at least two directions. Different clearances between the lower surface of the smoothing member and the upper surface of the previously formed layer are used to provide a uniform coating for a subsequent layer over the previously formed layer. The sweeping velocity of the smoothing member can be varied. Retractable needles are attached to the smoothing member for adjusting a blade gap between a lower surface of the smoothing member and the surface of the building material.Type: GrantFiled: March 13, 1995Date of Patent: July 29, 1997Assignee: 3D Systems, Inc.Inventors: Thomas A. Almquist, Charles W. Hull, Borzo Modrek, Paul F. Jacobs, Charles W. Lewis, Adam L. Cohen, Stuart T. Spence, Hop D. Nguyen