Patents Examined by Khanh P. Nguyen
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Patent number: 5670095Abstract: A tower packing unit for a liquid/gas/miss contact apparatus including a plurality of filaments that form a central body and a perimeter ring surrounding and connected to the central body; wherein the perimeter ring is formed in a continuous wave configuration surrounding the central body.Type: GrantFiled: July 17, 1995Date of Patent: September 23, 1997Assignees: Jeffrey John Baumont, Julian Morris Higgs, Dennis Owen SouthamInventor: Dennis Owen Southam
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Patent number: 5667822Abstract: A shaping mold for the production of ultra-thin shaped rubber articles, has a main body which is dipped into a latex liquid so as to make the latex adhered to the surface of the main body. The adhered latex is heat-dried to form an ultra-thin shaped rubber article over the surface. The mold is such that at least the surface of its main body is made of an amorphous carbon and that its bottom part is fitted with electrifying electrodes and has therebetween a heating area to be heated by resistance heating due to its electrification. The same shaping mold from its dipping step through the inspecting step of inspecting the shaped article as adhered to the surface of the mold. In the heat-drying step of the method, the shaped article as adhered to the surface of the shaping mold is heated and dried from the inside of the mold with preventing as much as possible formation of pin holes in the shaped article.Type: GrantFiled: May 31, 1996Date of Patent: September 16, 1997Assignees: Sohzohkagaku Co., Ltd., Nisshinbo Industries, Inc.Inventors: Tomoyuki Hayashi, Yoshiaki Tatsumi, Kinya Miyashita
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Patent number: 5667731Abstract: A portable fan device for use with a spray misting bottle which is capable of being mounted atop a spray applicating head portion of the misting bottle so that a fan blade unit of the fan device is positioned forwardly and in communication with an atomized spray nozzle of the spray head and cools and atomizes the mist spray issued by the nozzle. Releasable securing means such as an attachment bracket or contoured gripping tabs extending from the fan underside are employed for securing the fan body in a generally horizontal fashion atop the spray head. A stand member is held within a recessed cavity in the fan underside and can be rotated downwardly to support the fan device in an upright position for use as a portable fan once the fan body has been detached from atop the spray head. In a further embodiment, a gripping tab which forms part of the releasable securing means can provide the dual function of gripping part of the spray head and supporting the fan body in an upright position.Type: GrantFiled: September 1, 1995Date of Patent: September 16, 1997Assignee: Circulair, Inc.Inventors: Eric F. Junkel, Linda M. Usher
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Patent number: 5667732Abstract: A compact portable misting fan includes a novel and attractive housing which makes extremely efficient use of space, encased fan blades which are mounted between front and rear baffles, a liquid reservoir with an atomizer, conveniently located mist and fan controls, and an easily accessible battery compartment. The housing has a substantially flat profile with a substantially cylindrical upper section in which the fan is mounted and a substantially rectilinear lower section in which the reservoir and batteries are contained. The fan on/off switch is located on a lower portion of the cylindrical upper section and the misting button is located on an upper portion of the rectilinear lower section and on a side opposite to the fan switch. It is easily held in the user's hand so that the fan and the mister can be operated separately by thumb or index finger. A small hole is provided in the housing for the outlet of the atomizer.Type: GrantFiled: August 30, 1995Date of Patent: September 16, 1997Inventor: Jeffrey H. Lederer
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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: 5665397Abstract: A mold assembly for forming a panel assembly having a gasket on one surface for use as a flush-mounted panel or window in vehicles, buildings, or other structures includes a mold cavity defined in a facing surface of one mold section and a pressure pad on the second mold section, the pressure pad being urged against the surface of a sheet-like panel at a position opposite the mold cavity with the panel being held against a support surface adjacent the mold cavity when the mold sections are closed. Preferably, the pressure pad is a heat insulative pad which is urged against the panel surface by a resilient member preferably formed from urethane. The support surface and mold cavity are preferably raised above and offset from adjacent portions of the first mold section, and the size of the raised area of the support surface and mold cavity preferably corresponds in size to the area of the pressure pad.Type: GrantFiled: July 21, 1995Date of Patent: September 9, 1997Assignee: Donnelly CorporationInventors: Daniel J. Fisher, Marc A. Lovell, James L. Brodie
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Patent number: 5665401Abstract: An apparatus for producing an object using stereolithography includes a container, a bath of a liquid or powder material filling the container and having a free surface, the material being solidifiable under the action of electromagnetic radiation, a support for positioning the object relative to the free surface of the bath so as to form a layer of the material adjacent to the free surface, a device for solidifying the layer using electromagnetic radiation, a wiper device extending along a first direction across the free surface and drive means for moving the wiper device across the free surface along a second direction.Type: GrantFiled: April 24, 1996Date of Patent: September 9, 1997Assignee: EOS GmbH Electro Optical SystemsInventors: Jurgen Serbin, Peter Wolff, Gabriele Krug
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Patent number: 5665403Abstract: The double tapered die mount defines a channel to support the die shoulder. No contact occurs between the die and die housing. The die shoulder is machined to be in generally congruent relationship with the channel shape of the die mount of the invention. In the prior art, the die shoulder is perpendicular to both the inner radial surface and the outer radial surface of the die mount. In the preferred embodiment, the die shoulder is tapered from the inner radial surface toward the die edge to define an inner die taper. The die shoulder also tapers from the outer radial surface to the die edge to define an outer die taper. The side walls of the channel defined by the die mount of the invention taper inwardly to be congruent with tapered surfaces of the die shoulder. The inner channel wall, i.e., the channel wall closer to the axis of rotation of the die, contacts the inner die taper. The outer channel wall, i.e., the channel wall farther from the axis of rotation of the die, contacts the outer die taper.Type: GrantFiled: December 29, 1994Date of Patent: September 9, 1997Assignee: Andritz Sprout-Bauer, Inc.Inventor: Oszkar Bittner
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Patent number: 5662950Abstract: The present invention aims to provide a roll bending device for forming plastic sheet wherein no bending cylinders are used and operability is improved. A roll has a shaft at its both end portions, a second roll has a shaft at its both end portions. A pair of first housings has a bearing for supporting the shaft, and is positioned at both end portions of the shaft. A pair of housings has a bearing for supporting the shaft, and is positioned at both end portions of the shaft. A pair of housings has a bearing for supporting the shaft, and is positioned at the inside of the housings. A pair of housings has a bearing for supporting the shaft, and is positioned at the inside side of the housings. A pair of main cylinders supports the housings to pressurize the roll in a direction of the roll. A pair of gap adjusting devices is provided between the housings and to adjust a gap therebetween.Type: GrantFiled: March 13, 1996Date of Patent: September 2, 1997Assignee: Toshiba Machine Co., Ltd.Inventor: Toshihiko Kusago
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Patent number: 5660635Abstract: A nozzle for application of fluent material to a receiving surface. The nozzle allows for introduction of compressed air at locations along the length of the nozzle via multiple sets of plural air conduits. Individual conduits are angled toward a nozzle outlet. Further disclosed is the nozzle in an automated finish material delivery system capable of multi-dimensional translation along the receiving surface. The System nozzle can also be angled With respect to the receiving surface. A controller manages the operation of the delivery system. A tracked vehicle carries the controller, an air compressor, a pump, a generator, and a hoist. A number of sensors provide feedback regarding the operating condition of the system.Type: GrantFiled: August 9, 1995Date of Patent: August 26, 1997Inventor: Carol Jacques
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Patent number: 5658597Abstract: A kit and a method for using the kit to form a positive impression of an animal track and the like. The kit is lightweight, preferably weighing less than two pounds, is compact and easily transported by a hiker. The kit includes a supply of impression material and an adjustable strip which is used to form a circular frame or margin around the track to contain the impression material. The kit also includes a container which may be of a cardboard type of material and a flexible, waterproof bag to contain the impression material. The bag, which contains between a half a pound and one and a half pounds of impression material, may be used to mix the impression material with water being added. Once a track is found, the adjustable strip including a band of biodegradable material with an impression material-releasing surface is placed around the track to contain the impression material.Type: GrantFiled: July 12, 1995Date of Patent: August 19, 1997Inventors: Timothy J. Breidenstein, Jack Breidenstein
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Patent number: 5654017Abstract: An apparatus is provided for molding lead frames. The apparatus has a mold formed by two mold halves. An assembly for introducing a lead frame into one of the mold halves, an assembly for carrying encapsulating material into the cavities of the mold and an assembly for removing an encapsulated product from the mold are arranged on a carriage movable along a guide relative to the mold halves.Type: GrantFiled: November 16, 1995Date of Patent: August 5, 1997Assignee: Fico B.V.Inventor: Wilhelmus Hendrikus Johannes Harmsen
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Patent number: 5653919Abstract: A humidifier for adding liquid from a mist source to a gas flow improves the evaporation of the liquid by reducing the quantity of larger water droplets from the mist introduced to the gas flow by slowing a diverted portion of the gas flow, routing the gas flow through a partitioned chamber and deflecting the gas flow from direct impact on the mist while catching splattered liquid droplets within the humidifier.Type: GrantFiled: June 23, 1995Date of Patent: August 5, 1997Assignee: Morgan & White, Ltd.Inventors: Kenneth P. White, David B. White
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Patent number: 5654015Abstract: Apparatus for "top-down" construction technique is described. Deck formwork assemblies for each structural concrete slab are lowered and supported from the level above the same. This application describes and claims a support arm portion of the apparatus for transmitting the load of a deck assembly to a vertical column of the building framework.Type: GrantFiled: May 4, 1995Date of Patent: August 5, 1997Inventor: James W. Franklin
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Patent number: 5651911Abstract: A removable insert for forming a recess in wet concrete which locates a pulling iron or anchor in wet concrete, and when the concrete hardens the insert is removed, and the anchor may be engaged by a hook and cable to move the resultant concrete structure. The insert, which may be placed at any desired location in the concrete structure, is of a resilient, molded elastomeric material with a central opening to engage the pulling iron or anchor, with a slot therein, which is closed or shaped and which may have a V-shaped removable wedge in the slot. The insert is molded with a flat top with sloping sides, extending downwardly therefrom to a semicircular bottom surface, with threaded inserts in the top which have bolts inserted therein for fastening the insert to a plate and for squeezing to open the slot to permit withdrawal of the insert from the pulling iron or anchor, and which provides a recess, which contains the anchor.Type: GrantFiled: November 2, 1995Date of Patent: July 29, 1997Inventor: J. Edward Pennypacker
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Patent number: 5652002Abstract: A vibration apparatus for a molding box which enlarges the range in which a vibrating force can be increased and decreased. In the apparatus, a first gear pulley 16 for rotating a first rotary shaft having a first eccentric weight fixed thereto and a second gear pulley 17 for rotating a second rotary shaft having a second eccentric weight fixed thereto are disposed on the same plane, and similar third and fourth rotary shafts are disposed immediately below the first and second rotary shafts, respectively. An endless timing belt 37 is passed around a prime mover gear pulley 33 and a gear pulley 36 disposed on a slidable base 31 capable of horizontal displacement in such a manner as to extend from the lower side of the first gear pulley 16 to the upper side of the second gear pulley 17 and from the upper side of the fourth gear pulley 19 to the lower side of the third gear pulley 18, and the slidable base 31 can thus move in a direction parallel to the timing-belt 37.Type: GrantFiled: September 27, 1996Date of Patent: July 29, 1997Inventor: Shigeru Kobayashi
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Patent number: 5650181Abstract: A meshed plastic filter of a narrow-pitch net including a net and a frame in a unitary body is produced in either a square or a circular overall shape, and has diverse applications, such as a filter or sieve for gasoline or oil, a dust collector filter and other various filtration. A precision die has developed for producing such a meshed fabric plastic filter. The precision die has grooves called dam/discharge rib grooves radiating from the die center for guiding and pressuring the injected material and the vertical and horizontal rib grooves existing in horizontal and vertical directions for forming the net, so that gas retention inside the die is prevented and the material sneaks uniformly into the vertical and horizontal rib grooves and a frame groove through the dam/discharge rib grooves.Type: GrantFiled: February 23, 1995Date of Patent: July 22, 1997Inventor: Daizo Kotaki
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Patent number: 5650177Abstract: A gate portion constituting a gate of a resin molding die is made of a hard alloy having a hardness greater than the predetermined hardness in the iron-based hard alloy used to form a cavity block and a center block. Opposing surfaces of the cavity block halves include a polytetrafluoroethylene layer at least at the portions thereof which contact portions of the lead frame in a semiconductor encapsulation molding apparatus.Type: GrantFiled: July 7, 1995Date of Patent: July 22, 1997Assignee: Sony CorporationInventors: Akira Kojima, Tsuneyuki Hayashi, Hiroyuki Fukasawa, Takashi Saito
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Patent number: 5648104Abstract: An extrusion die for the extrusion of continuous hollow sections of plastic materials reinforced with fibers or molecules. Both the outer nozzle and inner mandrel are rotatable and have channels within them to allow the extrudate to flow through either the body of the nozzle or of the mandrel into the space between them to impart a radial component to the fibers. Likewise, a helical channel formed in either the nozzle or mandrel imparts a tangential component to the fibers. The flow may also be straight through the die which gives the fibers an axial component.Type: GrantFiled: May 2, 1995Date of Patent: July 15, 1997Assignee: The University of Manchester Institute of Science and TechnologyInventor: Hobab El-Sobky
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Patent number: 5645864Abstract: A resin encapsulating molding die for manufacturing a semiconductor device includes a cavity piece having a cavity on which a lead frame with a mounted semiconductor element may be placed, with the semiconductor element in the cavity, and a gate piece having a gate portion including a sub-runner through which a molten resin for encapsulating the semiconductor element is introduced into the cavity, the gate piece being detachable from the cavity piece. The molding die also includes a sealing dam disposed adjacent the sub-runner for blocking flow of molten resin from the sub-runner toward leads of the lead frame. The sealing dam may be a clamp structure for clamping the leads closest to the gate portion, the sealing dam and cavity piece may be a continuous unitary structure, and the sealing dam may have a parting surface substantially coplanar with a parting surface of the cavity piece.Type: GrantFiled: April 25, 1996Date of Patent: July 8, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Noriaki Higuchi