Patents Issued in August 7, 2001
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Patent number: 6269856Abstract: A pneumatic tire has an outer surface provided with a mid-lower sidewall contour S1 and a lower sidewall contour S2, the contour S1 extends radially inwardly from the maximum cross sectional width point P1 of the tire to a point P12 along a circular arc line E1 having a single radius R1 and the center on an axial line passing the maximum cross sectional width point P1, the contour S2 extends on the axially inside of the circular arc line E1 from the point P2 to a radially inner point P3, the rubber thickness T measured from the tire outer surface to the main portion of a carcass is gradually increased from the point P1 to the point P2.Type: GrantFiled: December 23, 1997Date of Patent: August 7, 2001Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kiyoshi Ueyoko
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Patent number: 6269857Abstract: A run-flat tire, i.e., a tire capable of running for a while even when it is flat or uninflated due to a puncture, includes a carcass ply or layer having a turned-up end which reaches one end of a belt layer underlying the tire tread. A crescent-shaped side-reinforcing rubber pad includes a outer-surface-side rubber pad and an inner-surface-side rubber pad arranged which sandwich a fibrous layer therebetween. The inner-surface-side pad, i.e., the one situated inward of the outer-surface-side pad, is thicker than the outer-surface-side pad. The upper end (the end close to the tread) and the lower end (the end close to a bead portion) of the fibrous layer extend slightly beyond the upper and lower ends of the side-reinforcing rubber pad, respectively.Type: GrantFiled: March 30, 1999Date of Patent: August 7, 2001Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Masayuki Kanai, Tomoyuki Iwagase, Yuji Miyazaki, Wuyun Guo, Rinichi Nakayama
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Patent number: 6269858Abstract: The present invention relates to a rubber composition containing a combination of starch, modified starch and/or starch/plasticizer composite together with selected methylene donor and/or methylene acceptor compounds. The invention also relates to tires having at least one component comprised of such rubber composition. Such tire component can be, for example, its circumferential tread or other component of the tire.Type: GrantFiled: August 6, 1999Date of Patent: August 7, 2001Assignee: The Goodyear Tire & Rubber CompanyInventor: Paul Harry Sandstrom
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Patent number: 6269859Abstract: A sheet roll forming system for forming sheet rolls by winding a heat transfer recording sheet around an outer periphery of a plurality of cores including a core supplying apparatus and a sheet roll discharge apparatus. The core supplying apparatus includes a cantilever shaft supporting the cores, a tray below the shaft and movable up and down in a direction of the shaft, and core stoppers on the tray where the shaft is an air shaft that can increase in diameter when air is supplied from a charge and exhaust apparatus. The sheet roll discharge apparatus includes the shaft supporting rolls of the recording sheet on the cores, a tray below the shaft, and a stopper on the tray.Type: GrantFiled: July 9, 1998Date of Patent: August 7, 2001Assignee: Dai Nippon Printing Co., Ltd.Inventor: Yoshikimi Semba
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Patent number: 6269860Abstract: An apparatus for feeding a top cover tape peeled from an electric-component tape which additionally includes a carrier tape having pockets which accommodate electric components, respectively, and whose respective upper openings are closed with the top cover tape, the apparatus including two rotatable members which are rotatable about respective axis lines parallel to each other and whose respective outer circumferential surfaces cooperate with each other to pinch the top cover tape, a rotary drive device which rotates one of the two rotatable members, one of the two rotatable members having a scraper groove which is formed in the entire outer circumferential surface thereof, in an intermediate portion thereof in an axial direction thereof parallel to the two axis lines, and a scraper which is provided on an outlet side of the two rotatable members in a tape-feed direction, such that a portion of the scraper is fitted in a portion of the scraper groove that corresponds to a position where the respective outerType: GrantFiled: June 17, 1999Date of Patent: August 7, 2001Assignee: Fuji Machine Mfg. Co., Ltd.Inventors: Takehisa Ishikawa, Yasuo Muto, Koichi Asai
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Patent number: 6269861Abstract: A tool is provided for assistance in removing and installing tires on wheel rims. The tool has a body with a lateral opening for engaging the flange of a wheel rim, preferably opening into a cavity that is wider than the opening such that the tools pivots between stable positions on a fulcrum at which lips of the lateral opening bear against the flange. A roller is mounted on one end of the tool body to exert a downward pressure on the tire sidewall, and a handle protrudes on an end opposite the cavity and fulcrum from the roller. The roller displaces the tire bead from its seat against the rim when removing or installing the bead of a tire that is already at least partly on the rim, or supports the second bead of a tire whose first bead is axially outside of the rim relative to the wheel rotation axis.Type: GrantFiled: February 29, 2000Date of Patent: August 7, 2001Inventor: Loi V. Tran
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Patent number: 6269862Abstract: A method for preparing a mould lubricant for use in direct chill casting of reactive metals, including magnesium, magnesium alloys, aluminum, and aluminum alloys, proceeds through combining a casting lubricant and a gaseous oxidation-inhibiting agent in a vessel external from the mold under vacuum conditions. The casting lubricant is selected from a variety of casting oils and casting greases. The gaseous oxidation-inhibiting agent is selected from a variety of inert gases, including sulfur hexafluoride (SF6).Type: GrantFiled: August 19, 1999Date of Patent: August 7, 2001Assignee: Cast Centre Pty Ltd.Inventors: Cheryl Richards, Stephen Ronald Peck, Phillip Wilmott Baker
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Patent number: 6269863Abstract: An integrated heat sink/retention mechanism and a method for mounting a processor assembly on a circuit board using such an integrated heat sink/retention mechanism. The method involves attaching an integrated heat sink/retention mechanism onto the circuit board. A grounding connection may be formed between the circuit board and the integrated heat sink/retention mechanism. The integrated heat sink/retention mechanism is designed so that the heat sink is attachable to a processor assembly and mountable on a circuit board.Type: GrantFiled: June 16, 1999Date of Patent: August 7, 2001Assignee: Molex IncorporatedInventor: Gregory T. Wyler
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Patent number: 6269864Abstract: A heat sink for a microprocessor includes a thermally conductive base having a plurality of fin structures upwardly extending from the thermally conductive base. The plurality of fin structures having a first surface comprising a plurality of surface area enhancer structures to increase a convection surface area of the heat sink for a given volume of a heat sink to enhance heat dissipation from the heat sink.Type: GrantFiled: February 18, 2000Date of Patent: August 7, 2001Assignee: Intel CorporationInventor: Ashok N. Kabadi
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Patent number: 6269865Abstract: A network-type heat pipe device is disclosed, wherein the network-type heat pipe device comprises a heat dissipating unit with a network shape, a heat absorbing unit of any desired shape, and two single flexible capillary pipes connecting the heat absorbing unit with the heat dissipating unit. The working fluid filled in the heat pipe is of a predetermined quantity smaller than the internal volume of the heat pipe. The inside diameters of the capillary pipes of the network-shaped heat dissipating unit and the connecting capillary pipes are small enough such that the vapor and liquid segments of the working fluid may distribute therein by capillary effect.Type: GrantFiled: August 20, 1998Date of Patent: August 7, 2001Inventor: Bin-Juine Huang
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Patent number: 6269866Abstract: The invention provides a cooling device provided with a heat pipe, which is capable of effectively radiating heat from electronic equipment such as a small-sized computer. The cooling device with the heat pipe comprises a plate-like container made of heat transferring metal for containing a working fluid, and having a heat absorbing surface larger than that of the body to be cooled, a the heat transferring metal column, and a hollow portion in which the working fluid exists. An alternating embodiment of the cooling device with the heat pipe comprises a plate-like container made of heat transferring metal, a heat absorbing wall having a large heat absorbing surface, and a plurality of protrusion portions.Type: GrantFiled: April 6, 2000Date of Patent: August 7, 2001Assignee: The Furukawa Electric Co., Ltd.Inventors: Masaaki Yamamoto, Jun Niekawa, Tatuhiko Ueki, Masami Ikeda, Ken Sasaki
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Patent number: 6269867Abstract: A steam condenser according to the present invention has a tube nest which has a massed region of cooling tubes and a plurality of tube bundles with flow passages. A noncondensable gas extracting tube is arranged among the cooling tubes in the massed region. A cooling unit or a steam condensing chamber for condensing steam contained in noncondensable gases which are extracted from the noncondensable gas extracting tube is arranged in the massed region. A discharge flow passage is formed at least partially in the tube next so as to enable the noncondensable gases from the cooling unit or the steam condensing chamber to be discharged outside of the condenser, whereby condensing efficiency of the steam contained in the noncondensable gases which flow into the cooling unit or the steam condensing chamber is improved.Type: GrantFiled: July 20, 1999Date of Patent: August 7, 2001Assignee: Hitachi, LTDInventors: Fumio Takahashi, Iwao Harada, Yasuo Fujitani
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Patent number: 6269868Abstract: A heat exchanger having a side support with a variable compression tab member is disclosed. The tab member engages a brazing fixture used in manufacturing the core and prevents damage to the fins of the core form the brazing fixture.Type: GrantFiled: July 2, 1999Date of Patent: August 7, 2001Assignee: Visteon Global Technologies, Inc.Inventors: Chad Richard Welding, Rodger Alan Lisk, William Wellington Dinnan, III
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Patent number: 6269869Abstract: A continuous corrugated heat exchanger and method of making same includes a plurality of contiguous plates and a plurality of tabs disposed between adjacent plates. The plates include a plurality of refrigerant plates having a plurality of beads and at least one blank plate at each end of the refrigerant plates forming an end sheet. The refrigerant sheets are folded bellows-like to form a stack and the end sheet is folded on a top and bottom of the stack and connected thereto.Type: GrantFiled: December 22, 1999Date of Patent: August 7, 2001Assignee: Visteon Global Technologies, Inc.Inventors: Joseph Paul Tavi, James Harvey Hornsby, IV, Darrel Paul Massman
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Patent number: 6269870Abstract: In a heat exchanger used especially as an exhaust heat exchanger, provision is made for tube sheets, the tubes of a tube bundle, and a housing to be shaped from stainless steel sheets. The tube sheets are formed as deep-drawn and stamped parts, each of which has a circumferential wall that projects outward beyond the ends of the tubes in the tube bundle. The walls are welded to the housing, and each of the walls is abutted by a diffuser.Type: GrantFiled: April 22, 1999Date of Patent: August 7, 2001Assignee: Behr GmbH & Co.Inventors: Matthias Banzhaf, Martin Bauer, Claus Beck, Martin Bott, Steffen Brunner, Frank Büche, Guido Domke, Markus Esslinger, Stefan Felber, Bernd Grünenwald, Bert Hiller, Wolfgang Knödler, Rainer Lutz, Joachim Schemel, Albert Schmitz, Peter Schwartz, Rainer Tränkle
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Patent number: 6269871Abstract: The present invention relates to a heat exchanger applied for an IC production line or the like, wherein, on plural independent tube holding holes 20 formed on holding plates 20, ends of resin tubes are arranged, and a predetermined length range &agr; of the each resin tube is integrally fused into the each holding plate inside the tube holding holes. Each fusing portion for fusing the plural resin tubes into the holding plates has a non-contacted congestion structure wherein the resin tubes are not mutually contacted, thereby increasing reliability on connecting the fusing portion, and meanwhile, facilitating miniaturization of the heat exchanger by increasing heat-exchange efficiency and elements such as the resin tubes and the holding plates may be made of a fluororesin.Type: GrantFiled: May 13, 1998Date of Patent: August 7, 2001Assignee: Nippon Pillar Packing Co., Ltd.Inventors: Kiyoshi Nishio, Makoto Fujii, Yutaka Okamoto, Takuya Ishida
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Patent number: 6269872Abstract: A method for regulating coolant flow rate to a heat exchanger in an automotive vehicle is described. The method includes the steps of providing a main fluid pump for providing a source of fluid under pressure to the vehicle engine and the heat exchanger and providing a reversible flow auxiliary pump between the main fluid pump and the heat exchanger. The method further includes the steps of generating an engine speed signal and an ambient temperature signal. The auxiliary pump forces fluid against the flow from the main fluid pump when the engine speed signal is greater than a threshold value and forces fluid to the heat exchanger when the ambient temperature signal is below a predetermined value and the engine speed signal is less than the threshold value and within predetermined values. A system is also disclosed for accomplishing the method.Type: GrantFiled: October 14, 1998Date of Patent: August 7, 2001Assignee: Visteon Global Technologies, Inc.Inventor: John Stiles Anderson
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Patent number: 6269873Abstract: A method for controlling heat exchange in a nuclear reactor. The reactor contains at least one thermal valve, at least one heat exchanger having a coolant flowing therein, with the heat exchanger being immersed in a pool containing a fluid. The heat exchanger is confined by a container having an upper part with an opening therein and a lower part having means for introducing the fluid through such lower part as well as means for partially or totally opening or closing said opening in the upper part and means for partially or totally opening or closing opening in the lower part. The method comprises the steps of closing the opening in the upper part of the container to thereby vaporize said fluid, in order to cause a cessation of heat exchange between the coolant and the fluid; and opening the opening in the upper part of the container to thereby cause the fluid to be heated and to rise by convection, thereby permitting heat exchange to occur between the coolant and the fluid.Type: GrantFiled: June 7, 1999Date of Patent: August 7, 2001Assignee: Commissariat a l'Energie AtomiqueInventors: Guy-Marie Gautier, Patrick Aujollet, Jean-François Pignatel
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Patent number: 6269874Abstract: An electro-hydraulic surface controlled subsurface safety valve is controllable entirely electrically. The actuator operates on an electrically actuated pressure pump and a supply of hydraulic fluid reservoired in the tool proximate to the safety valve. A dump valve is normally open so that if power fails, pressure is released and the safety valve closes.Type: GrantFiled: April 29, 1999Date of Patent: August 7, 2001Assignee: Baker Hughes IncorporatedInventors: Michael S. Rawson, Charles M. Tompkins, Doug Trott
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Patent number: 6269875Abstract: The chemical stick storage and delivery system includes a chemical stick delivery tube in communication with a well which supports a rotatable chemical stick storage device on the uppermost end of the delivery tube. The delivery tube includes an upper opening and the chemical stick storage device rotates to position chemical sticks sequentially over the delivery tube opening. Within the delivery tube is a first valve positioned directly beneath the delivery tube opening and a second valve spaced below the first valve for a distance sufficient to form a chamber between the first and second valves to receive a chemical stick. A central processor unit controls the operation of the first and second valves so that the first valve is opened while the second valve is closed and the chamber is brought to well head pressure before the second valve is opened to drop the chemical stick from the chamber into the well.Type: GrantFiled: February 17, 2000Date of Patent: August 7, 2001Assignee: The Harrison Investment TrustInventors: William G. Harrison, III, Stephen G. Fulton, James Meaders
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Patent number: 6269876Abstract: A heater is disclosed, the heater including: a porous metal sheet heating element; and an electrical insulating material surrounding the porous metal sheet heating element; wherein there is no casing surrounding the porous metal sheet heating element.Type: GrantFiled: March 8, 1999Date of Patent: August 7, 2001Assignee: Shell Oil CompanyInventors: Eric De Rouffignac, Harold J. Vinegar, Lawrence James Bielamowicz
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Patent number: 6269877Abstract: A magnetic assembly is used in wells that are lined with a metal casing so as to attract and collect resulting metal debris after perforation of the metal casing by a perforating tool. When the perforating tool was activated in the past, the metal debris typically fell downward inside of the metal casing and needed to be retrieved by a flushing or similar procedure. The present invention involves attaching a magnetic assembly to the bottom end of the perforator tool to collect the metal debris as it falls after perforation of the metal casing. The magnetic assembly includes a steel pipe filled with spaced magnetic discs, and also includes a guide shoe on one end of the pipe and a thread adaptor on the other end. The guide shoe facilitates insertion of the magnetic assembly into the mouth of the well casing, and centres the assembly once inside. The thread adaptor is used to attach the magnetic assembly to the bottom end of the perforator tool.Type: GrantFiled: January 5, 2000Date of Patent: August 7, 2001Inventors: Ian B. Zeer, Dennis V. Borgstrom
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Patent number: 6269878Abstract: An inflatable packer with a packer body, an inflatable bladder mounted around the packer body, a bladder support mounted around the inflatable bladder, the packer body, the inflatable bladder and the bladder support made of drillable material. A method for reclaiming a borehole extending from an earth surface into the earth, part of which is in a lost circulation zone, the method including closing off the borehole to fluid flow above the lost circulation zone by installing a packer system with an inflatable packer element and a valve apparatus in the borehole above the lost circulation zone, inflating the inflatable packer element with cement, and allowing the cement to set so that the inflatable packer and the valve apparatus effectively seal off the borehole to fluid flow.Type: GrantFiled: October 15, 1999Date of Patent: August 7, 2001Assignee: Weatherford/Lamb, Inc.Inventors: Mark Lewis Wyatt, Paul James Wilson, Thad Joseph Scott, Robert Thomas Brooks, Clayton Plucheck, Guy L. McClung, III
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Patent number: 6269879Abstract: A side entry tool having a lower end portion for receiving a saver sub thereon. There is further provided a sleeve portion positioned in the lower end of the side entry tool having an outside diameter smaller than the inside diameter of the tool body; the sleeve would have undergone heat treatment to a certain rockwell hardness so that because of the smaller diameter of the sleeve, any contact of the wireline with the tool body would make contact with the hardened sleeve, which could take the contact without a groove or cut being formed in the sleeve. The sleeve would be held in place with a set screw at its lower end to prevent it from rotating. In the event the sleeve indicates wireline wear, the set screw would be loosened and the sleeve would be rotated so that the wireline would make contact with a non-affected portion of the sleeve.Type: GrantFiled: March 20, 2000Date of Patent: August 7, 2001Inventor: Harper Boyd
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Patent number: 6269880Abstract: A system for removing solids from a well bore and reclaiming the well bore fluid. A work string is disposed within the well bore. The system includes a gas separator, connected to a return line from the well bore, for separating the gas component from the well bore fluid, and wherein the gas separator has a first outlet for exiting the gas component and a second outlet for exiting the well bore stream. Also included is a solids separator, connected to the second outlet, for separating the remainder of the well bore fluid into a first stream containing the solids and a second stream containing the well bore fluid. The solids separator may be located longitudinally below the gas separator so that a hydrostatic head pressure aids in feeding the well bore fluid to the solids separator. The system further includes a cuttings box connected to the solids separator, with the cuttings box being configured to receive the solids from the solids separator.Type: GrantFiled: January 27, 2000Date of Patent: August 7, 2001Inventor: Ronald J. Landry
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Patent number: 6269881Abstract: An oil recovery process is disclosed which uses a particular class of alkylaryl sulfonate surfactants. The surfactants are derived from an alpha-olefin stream having a broad distribution of even carbon numbers ranging from 12 to 58. The olefin stream is reacted with aromatic feedstock, such as benzene, toluene, xylene, or a mixture thereof to form alkylates, and then reacted with SO3 to form sulfonic acids. The resulting surfactant has high solubilization and ultra-low interfacial tension with crude oils, especially waxy crude oil, having a broad distribution of carbon numbers.Type: GrantFiled: December 17, 1999Date of Patent: August 7, 2001Assignees: Chevron U.S.A. Inc, Chevron Chemical Company LLCInventors: Shang Chou, Curtis B. Campbell
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Patent number: 6269882Abstract: A combustor method and apparatus is provided. The method utilizes flameless combustion with one or more of three improvements to enhance ignition of the flameless combustor. A catalytic surface can be provided within a combustion chamber to provide flameless combustion at least in the vicinity of the catalytic surface at a temperature that is much lower than the autoignition temperature of fuel in air without the presence of the catalytic surface. Nitrous oxide or supplemental oxygen may also be used as an oxidant either instead of air or with air to reduce ignition temperatures. Further, electrical energy can be passed through the fuel conduit, raising the temperature of the conduit to a temperature above which the fuel will ignite when combined with the oxidant.Type: GrantFiled: January 19, 1999Date of Patent: August 7, 2001Assignee: Shell Oil CompanyInventors: Scott Lee Wellington, Thomas Mikus, Harold J. Vinegar, John Michael Karanikas
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Patent number: 6269883Abstract: A disconnect tool includes a housing that has a first segment and a second segment. A first collet is coupled to the first segment and has a first plurality of fingers, each of the first plurality of fingers is bendable between a first position in which the fingers engage the first segment and prevent relative sliding movement between the first and second segments and a second position in which the fingers do not engage the first segment and do not prevent relative sliding movement between the first and second segments. A first piston is positioned in the housing and has a third position wherein the piston engages and prevents the fingers from bending from the first position, and a fourth position wherein the piston does not engage and prevent the fingers from bending from the first position. The disconnect tool includes means for selectively retaining the first piston in the third position and means for moving the first piston from the third position to the fourth position.Type: GrantFiled: September 28, 2000Date of Patent: August 7, 2001Assignee: Halliburton Energy Services, Inc.Inventors: Robert W. Gissler, Michael Holcombe
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Patent number: 6269884Abstract: An artificial lift system for use in a well bore including at least one chamber having an inlet and an outlet, a power gas string in valved communication with the chamber, a liquid string in valved communication with the outlet of the chamber, at least one vent in valved communication with the chamber and adapted to pass a vented gas from the chamber, a compressor connected to the power gas string and adapted to pass a pressurized gas into the power gas string, and a valve connected to the power gas string and to the chamber. The vent is connected to the compressor and is adapted to pass the vented gas into the compressor. The valve is adapted to selectively allow the pressurized gas to enter the chamber so as to cause a liquid in the chamber to pass through the outlet of the chamber and into the liquid string. A first vent is in valved communication with the chamber and is connected to a stage of the compressor.Type: GrantFiled: September 27, 1999Date of Patent: August 7, 2001Assignee: Valence Operating CompanyInventor: Jon R. Averhoff
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Patent number: 6269885Abstract: The position of the blade of a motor grader is controlled to maintain a smoothly graded surface even when the grader's front wheels travel over undulating ungraded ground. This is accomplished by sensing the degree to which the grader frame pivots with respect to the rear wheels and employing the pivot angle to derive the resultant change in blade position. That change is used to operate a mechanism that produces movement of the blade relative to the earth thereby compensating for effects of the pivoting action.Type: GrantFiled: December 15, 1999Date of Patent: August 7, 2001Assignee: Husco International, Inc.Inventors: Dennis R. Barber, Patrick T Mullins
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Patent number: 6269886Abstract: The invention discloses a differential connecting rod and draft cable for an agricultural tillage device. The invention consists of a differential connecting rod which is positioned parallel to the center frame. The center frame is connected to the inner wing frame by a universal joint. The universal joint has a spherical bearing and a pivot. The pivot is positioned in a slot. The differential control rod positions the pivot in the slot. An ‘L’-shaped linkage and a spring assembly pivotally support the rod. The draft cable is attached to the center frame hitch and outer wing. It is supported in the center by a folding support arm. This allows the wire to be moved when the cultivator is being transported. The draft cable transfers the draft force exerted on the outer wing to the center frame hitch.Type: GrantFiled: January 18, 2001Date of Patent: August 7, 2001Assignee: Flexi-Coil Ltd.Inventor: Terrance A. Friggstad
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Patent number: 6269887Abstract: A forwardly folding tillage implement carries a number of ground engaging tools on a tool gang frame disposed to the rear of a carrier frame. A rockshaft is disposed between the carrier frame and the tool gang frame and is movable between four rotated positions about two axes of rotation. A control mechanism controls the relative angular position of the rockshaft. A support mechanism is disposed rearwardly of the axes of rotation to support the rear of the tool gang frame above the ground in the field working position. An abutment member restrains the relative rotation between the rockshaft and the tool gang frame to fully support the tool gang frame on the rockshaft upon rotation of the rockshaft. A secondary hitch mechanism is also provide to couple a second implement behind the forwardly folding tillage implement.Type: GrantFiled: December 18, 2000Date of Patent: August 7, 2001Assignee: Flexi-Coil Ltd.Inventor: Terrance A. Friggstad
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Patent number: 6269888Abstract: An apparatus is provided that allows a working element to undergo either rotary or reciprocation motion in a transmission system that is very compact in terms of the amount of space it requires to convert the rotary output of the motor into either rotary or reciprocating output of an output shaft operably connected to the working element. The transmission includes input and output members between which a clutch and cam mechanism are disposed for providing a rotary/reciprocating transmission system with a compact design. When the clutch is disengaged, the cam mechanism is operable to provide the output member and thus the output shaft connected thereto with reciprocating motion. Preferably, the output member is cylindrical with the input member, clutch and cam mechanism all disposed therein to provide the rotary/reciprocating tool with a so-called “barrel cam” transmission that is small to provide significant space saving in the tool housing.Type: GrantFiled: August 13, 1999Date of Patent: August 7, 2001Assignee: Hand Tools International, LLCInventors: David J. Schuda, Barbara Perozek, David Iverson
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Patent number: 6269889Abstract: A ground piercing tool of the invention includes an elongated tubular housing having front and rear openings, a head including an anvil secured in the front opening of the housing, a striker disposed for reciprocation within an internal chamber of the housing to impart impacts to a rear impact surface of the anvil for driving the tool through the ground, a reciprocation mechanism for reciprocating the striker, and a tail assembly mounted in a rear end opening of the housing that secures the striker and reciprocation mechanism in the housing. A plastic tube forms the body of the housing, and the plastic tube is secured to the head. The reciprocation mechanism is preferably an air distributing mechanism that uses compressed air to reciprocate the striker.Type: GrantFiled: October 24, 1997Date of Patent: August 7, 2001Assignee: Earth Tool Company, L.L.C.Inventor: Steven W. Wentworth
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Patent number: 6269890Abstract: A taphole boring machine serving two tapholes includes a support structure, a mount and a suspension device of which the mount is secured on the supporting structure and the suspension device has a tilting device for the mount with the suspension device further including a mechanism within a frame, a first drive and two connection points with a mechanism designed in such a way that a positively guided translation of two connection points in relation to the frame can be produced by a drive pulse of the first drive so that a connecting line through the two connection points remains parallel with itself during such movement.Type: GrantFiled: October 18, 1999Date of Patent: August 7, 2001Assignee: Paul Wurth, S.A.Inventors: Victor Kremer, Philippe Malivior, Emile Lonardi
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Patent number: 6269891Abstract: A system for drilling and logging of a wellbore formed in an earth formation is provided. The system comprises a logging tool string and a drill string having a longitudinal channel for circulation of drilling fluid, the drill string including a port providing fluid communication between the channel and the exterior of the drill string, the channel and the port being arranged to allow the logging tool string to pass through the channel and from the channel through the port to a position exterior of the drill string. The system further comprises a removable closure element adapted to selectively close the port, wherein the logging tool string may be selectively connected to the closure element.Type: GrantFiled: September 9, 1999Date of Patent: August 7, 2001Assignee: Shell Oil CompanyInventor: Douwe Johannes Runia
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Patent number: 6269892Abstract: A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor 12 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. The motor housing 14 has a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 has a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing is less than ten times the bit diameter. According to the method of the present invention, fluid is pumped through the downhole motor to rotate the bit at a speed of less than 350 rpm. A substantial portion of the curved borehole section may be drilled while sliding rather than rotating the motor housing.Type: GrantFiled: December 21, 1998Date of Patent: August 7, 2001Assignee: Dresser Industries, Inc.Inventors: Roger Boulton, Chen-Kang D. Chen, Thomas C. Gaynor, M. Vikram Rao
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Patent number: 6269893Abstract: A bi-center drill bit includes pilot and reaming blades affixed to a body at azimuthally spaced locations. The blades have PDC cutters attached at selected positions. In one aspect, the pilot blades form a section having length along the bit axis less than about 80 percent of a diameter of the section. In another aspect, selected pilot blades and corresponding reaming blades are formed into single spiral structures. In another aspect, shapes and positions of the blades and inserts are selected so that lateral forces exerted by the reaming and the pilot sections are balanced as a single structure. Lateral forces are preferably balanced to within 10 percent of the total axial force on the bit. In another aspect, the center of mass of the bit is located less than about 2.5 percent of the diameter of the bit from the axis of rotation. In another aspect, jets are disposed in the reaming section oriented so that their axes are within about 30 degrees of normal to the axis of the bit.Type: GrantFiled: June 30, 1999Date of Patent: August 7, 2001Assignee: Smith International, Inc.Inventors: Timothy P. Beaton, David Truax
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Patent number: 6269894Abstract: A cutting element for a rotary drag-type drill bit comprises a body of polycrystalline diamond incorporating a binder-catalyst selected from iron group elements, such as iron, cobalt and nickel, or alloys thereof. The body of polycrystalline diamond is unsupported by an integral substrate. The cutting element may be mounted directly on the body of the drill bit, or may be brazed to a substrate of a different, less hard material which is in turn mounted on the drill bit.Type: GrantFiled: August 24, 1999Date of Patent: August 7, 2001Assignee: Camco International (UK) LimitedInventor: Nigel Dennis Griffin
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Patent number: 6269895Abstract: In a state a vehicle is stopped at an intersection, an infinitely variable transmission is in a neutral position, a motor/generator rotates with a low speed, an oil pump and an auxiliary equipment are in rotating state. At that time, an input clutch is disengaged, and the internal engine is stopped. When the vehicle is started, a continuously variable transmission performs continuous shift control from the neutral position using hydraulic pressure from an oil pump, and the rotation of the motor/generator is transmitted to drive wheels via a ring gear of a planetary gear. After the vehicle has started driving, the input clutch is engaged and the internal engine is started. The vehicle is driven while the motor/generator assists driving or the motor/generator charges batteries based on operation of the internal engine.Type: GrantFiled: October 6, 1998Date of Patent: August 7, 2001Assignee: Aisin AW Co., Ltd.Inventors: Takao Tanuguchi, Shoichi Miyagawa, Kazumasa Tsukamoto, Shigeo Tsuzuki, Kenji Omote, Seiji Suzuki, Takeshi Hara
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Patent number: 6269896Abstract: A radiator cover for covering the side of a radiator. The inside of the radiator cover forms an expelled air path with air being expelled to the outside of the vehicle from an expelled air port of a side section thereof. An intake path for the flow of fresh air is formed in a longitudinal direction and includes an intake port and a duct. An opening section is formed in part of the duct, the opening section being opened and closed by a louver actuated by an actuation member. Expelled air thereby controllably enters the opening section into the duct and is mixed with fresh air. Thus, fresh air can be effectively temperature controlled. The mixed air is expelled from the duct to the rear of the radiator cover.Type: GrantFiled: October 18, 1999Date of Patent: August 7, 2001Assignee: Honda Giken Kabushiki KaishaInventors: Koichi Tanaka, Hiroaki Hasumi, Nobutaka Tokumasu
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Patent number: 6269897Abstract: A steering control device in which a level of a magnetic signal given by each magnetic nail buried in a road at intervals is detected by magnetism detecting means, an operation of a steering of a vehicle is controlled in accordance with the detected magnetic signal level, and an operation of the steering is controlled in accordance with a vehicle position and attitude angle of the vehicle detected by a vehicle position and attitude angle detecting means when any magnetic signal level is not detected by the magnetism detecting means.Type: GrantFiled: July 17, 1998Date of Patent: August 7, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kazuya Tamura, Sachio Kobayashi, Eishi Jitsukata
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Patent number: 6269898Abstract: A wheeled vehicle comprises a frame having a steerable front wheel having an axle affixed to a front portion of said frame, and a hub rear wheel having an axle affixed to a rear portion of said frame. A unitary power module is used as a propulsion system, which includes a target sprocket and a mounting frame, with the target sprocket comprising a disk shaped assembly having an center opening to allow the unitary member to be placed about the wheel axle. The target sprocket mates to the hub (or axle) of either of the wheels to enable target sprocket to be concentrically attached to the wheel by engagement with the wheel by securing elements. The mounting frame may be aligned with and rotatably attached to the target sprocket to allow for aligned rotation of the target sprocket about the wheel axle.Type: GrantFiled: April 30, 1999Date of Patent: August 7, 2001Assignee: Currie Technologies, Inc.Inventors: Richard A. Mayer, Bruce S. Widmann, Seth A. Terr, Devin S. Bank, Malcolm R. Currie
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Patent number: 6269899Abstract: A transmission arrangement for an offroad vehicle is disclosed. The vehicle has a frame, at least two wheels supporting the frame, and an internal combustion engine supported by the frame. The engine has at least one cylinder, a piston reciprocally mounted in the cylinder and driving a crankshaft of the engine, the crankshaft arranged to drive at least one of the wheels through the transmission. The vehicle has a longitudinal centerline, with the crankshaft of said engine extending along a first axis transverse to the centerline. The transmission includes a transmission chamber defined by a cover, a primary shaft positioned in the chamber and selectively driven by the crankshaft through a clutch, a main shaft positioned in the chamber and offset from the primary shaft, the main shaft driven by the primary shaft by a belt. The main shaft is arranged to drive the at least one wheel.Type: GrantFiled: April 17, 1998Date of Patent: August 7, 2001Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Kazuhiko Izumi
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Patent number: 6269900Abstract: A front-end structure for a passenger motor vehicle has a front end region, in the direction of travel, of the brake servo unit which is assigned at least one mechanical forced guidance apparatus. The latter is fixed on at least one body-shell part. In a vehicle impact, the apparatus engages with at least one movement component in the vertical direction of the vehicle, from bottom to top, on the end region of the brake servo unit.Type: GrantFiled: August 30, 1999Date of Patent: August 7, 2001Assignee: DaimlerChrysler AGInventors: Frank Adams, Eberhard Benz, Joachim Herre, Josef Sailer, Alfred Schnabel
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Patent number: 6269901Abstract: A hydraulic drive system incorporating a hydraulic pump for three wheeled vehicles such as “piggy back” forklifts in which there are at least two separate but linked drives forming one drive unit for each of the wheels and each drive has a separate input and output. Valving is provided to provide both parallel and series operation of the system for optimum torque, speed and anti skid operation. In one preferred way of carrying out the invention a single drive unit feeds one of the drives of each of the other drives. The hydraulic pump feeds the single drive unit and one of the drives of the other transverse drive units. By-pass diverter valves are fitted across the drives of the transverse drive units.Type: GrantFiled: June 27, 1997Date of Patent: August 7, 2001Assignee: Moffett Research and Development LimitedInventors: Robert Moffett, Carol Moffett, James McAdam, Paul Quinn, Gerard McHugh, Gerard Harte, Andrew Wylie, Martin McVicar, Thomas Cadden
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Patent number: 6269902Abstract: A construction for mounting a subframe 1 to a vehicle body 5 includes a hollow collar 2 inserted into a pipe P constructing the subframe, the pipe being provided with an insertion hole 1a at a certain position along its thickness direction; a pair of substantially U-shaped brackets 3, 3 fixed to the pipe in such a manner that the hollow collar inserted through the insertion hole is held between the brackets; and a bolt 4 connecting the subframe to the vehicle body. The subframe may be mounted to the vehicle body at inclined angles. The brackets are mounted on the pipe such that a base portion 3a of each bracket is parallel in side view to a subframe mounting surface 5a of the vehicle body and allows the insertion of the bolt. The brackets are then fixed to the pipe at its side projecting portions 3b, 3b. One bracket adjacent to the vehicle body has a mounting surface 3d which allows surface contact with the subframe mounting surface of the vehicle body.Type: GrantFiled: February 18, 2000Date of Patent: August 7, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Kazuo Miyagawa
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Patent number: 6269903Abstract: High functional reliability for a vehicle steering system that can be switched between a normal mode with a steer-by-wire level and an emergency mode with a fall-back level is achieved by providing that the fall-back level has a hydraulic system which contains a manual-side double-acting piston-cylinder unit which is actuated with a steering handle, e.g. steering wheel. The unit is positively coupled hydraulically to a wheel-side double-acting piston-cylinder unit which actuates steered vehicle wheels. A hydraulic charging system has a hydraulic pump, the inlet side of which is connected to a hydraulic-fluid reservoir. Switchable hydraulic couplings are provided for hydraulically coupling and decoupling the hydraulic system of the fall-back level and the hydraulic charging system to and from one another, respectively.Type: GrantFiled: September 15, 1999Date of Patent: August 7, 2001Assignee: DaimlerChrysler AGInventors: Hubert Bohner, Mathias Hartl, Martin Moser, Wolfgang Schrock
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Patent number: 6269904Abstract: A fall protection system has at least two widely spaced apart support members which support a rail assembly above a work area. The rail assembly includes a beam and a truss member. The beam has a generally vertical web and at least a lower generally horizontal flange. A trolley is adapted to slide or move across the flange. The truss member is mounted to a top of the beam and extends the length of the beam.Type: GrantFiled: February 27, 1998Date of Patent: August 7, 2001Assignee: FPS Investments, LLCInventor: Daniel W. Morhaus
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Patent number: 6269905Abstract: A load-bearing table for use on a peaked roof is made up of a platform which is hinged along a general center line for resting on the peak of the roof and has support bars pivotally attached and extending downward from the platform on either side of the peak to help support the table by applying forces which squeeze or pinch together against the rooftop on either side of the peak to hold the table and load in place and to minimize any damage to the roof and rafters. The support bars are adjustable with respect to the platform to accommodate different roof pitches.Type: GrantFiled: July 24, 2000Date of Patent: August 7, 2001Inventor: Thomas R. Smith