Patents Issued in March 11, 2003
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Patent number: 6530350Abstract: In an internal-combustion engine with a hydraulic system for variable operation of the engine valves, there is envisaged at least one supplementary reservoir bled off to the atmosphere, communicating with the low-pressure circuit for compensating for the variations in volume of the hydraulic fluid that derive from the variations in temperature and for thus preventing air bubbles from forming in the circuit.Type: GrantFiled: March 22, 2002Date of Patent: March 11, 2003Assignee: C.R.F. Societa Consortile per AzioniInventors: Stefano Chiappini, Andrea Pecori, Francesco Vattaneo
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Patent number: 6530351Abstract: An apparatus controls valve timing of an internal combustion engine that is provided with helical splines of an actuator for varying a phase difference in rotation and an actuator for varying a cam profile and lift of an intake cam. When the apparatus for controlling valve timing and respective actuators are not driven, a valve timing can be automatically established, which can achieve a cold valve overlap &thgr;ov. Carburetion of fuel can be promoted in the combustion chamber and intake ports by the blow-back of exhaust resulting from the cold valve overlap &thgr;ov. A mixture is made into a sufficient air-fuel ratio without depending on an increase in fuel when cold idling, wherein combustion is stabilized still more than in a case where valve overlap is not increased, cold hesitation can be prevented from occurring, and drivability can be maintained in a comparatively favorable state.Type: GrantFiled: February 20, 2001Date of Patent: March 11, 2003Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kazuhisa Mikame
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Patent number: 6530352Abstract: The present invention has for its object an intake manifold or distributor with several pipes. Intake manifold or distributor (1), particularly of thermoplastic material, obtained by the assembly of at least two previously produced constituent parts (2 and 3) and comprising several intake pipes (4) formed with said manifold or distributor, characterized in that each intake pipe (4) is at least partially, and preferably totally, constituted by the coaction of at least one wall portion (6, 6′; 7, 7′) of at least one of its constituent parts (2, 3) with the structural insert (8) mounted in one of said parts (2, 3) before their mutual assembly, held in position between them after their assembly and forming at least a portion of the wall of the pipe (4) in question.Type: GrantFiled: May 29, 2001Date of Patent: March 11, 2003Assignee: Mark IV Systemes Moteurs (Societe Anonyme)Inventors: Pascal Corduan, William Faucheux
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Patent number: 6530353Abstract: A crankshaft holding structure 10 for use in an internal combustion engine has a front crankshaft 35 supported by a radial roller bearing 25 that is fixed to a crankcase 11 and has an inner side surface 26a. A land 40 of the front crankshaft 35 is held in abutment against the inner side surface 26a to limit crankshafts 30, 35 against axial elongation and deformation. The radial roller bearing 25 has an outside diameter D1 that is the same as an outside diameter of a radial ball bearing 20. The forgoing arrangement includes simplified bushings cast in a crankcase and having bearing press-fitted therein, that allows the bushings to be used as common parts.Type: GrantFiled: May 9, 2001Date of Patent: March 11, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Katsuhiko Ito, Masataka Eguchi, Kazuhiro Yasuda
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Patent number: 6530354Abstract: An oil pan for use with an engine having a crankshaft includes a pan body adapted to be disposed beneath the crankshaft for receiving oil that is exhausted from the engine. The oil pan further includes a vertically extending baffle attached to the pan body.Type: GrantFiled: February 19, 2002Date of Patent: March 11, 2003Assignee: General Motors CorporationInventors: Thomas M. Bishop, John A. Holzerland, Stanley P. Nunes
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Patent number: 6530355Abstract: A 4-cycle engine includes an oil tank mounted to one side of an engine body, and an oil slinger accommodated in the oil tank and adapted to scatter an oil stored in said oil tank to generate a lubricating oil mist. In the 4-cycle engine, a timing transmitting case is interposed between the engine body and the oil tank, so that heat transmission from the engine body to the oil tank is shielded. Thus, the oil tank can be disposed at a location spaced apart from the engine body without bringing about an increase in size of the engine, thereby suppressing the heat transmission from the engine body to the oil tank to the utmost to prevent overheating of the oil in the oil tank.Type: GrantFiled: July 9, 2001Date of Patent: March 11, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Keita Ito, Takao Nishida, Atsushi Miyazaki, Tetsuya Arai
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Patent number: 6530356Abstract: A cylinder block for a multi-cylinder engine is provided with a water jacket partly on an intake side of a row of cylinders and partly on an exhaust side of the row of cylinders and a water guide passage through which cooling water is introduced into the water jacket. The cylinder block is provided with oil return passages each of which extends straight from top to bottom of the cylinder block between each adjacent cylinders. A branch oil return passage branches off from a middle portion of the rearmost oil return passage and extends rearward up.Type: GrantFiled: October 3, 2001Date of Patent: March 11, 2003Assignee: Mazda Motor CorporationInventors: Yasushi Inoue, Takashi Mitsuhara, Takashi Ohtsuru, Masako Shinohara, Arata Matsue
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Patent number: 6530357Abstract: The present invention pertains to rotary internal combustion engines and essentially relates to an engine including a body that comprises an inner cylindrical cavity as well as side covers. The cavity comprises a rotor-piston which is concentrically mounted therein, which comprises side surfaces, radial protrusions and radial recesses on its peripheral surface, and which forms together with the body a plurality of segmented cavities. The side surfaces of the rotor-piston abut tightly with the side covers, while the radial protrusions at the peripheral surface of the rotor-piston abut tightly with the inner cylindrical surface of the body cavity. The combustion chamber is located beyond the limits of the inner cylindrical cavity and communicates with the latter through inlet and outlet channels provided with controlled slide valves.Type: GrantFiled: July 27, 2001Date of Patent: March 11, 2003Inventor: Viktor Prokoflevich Yaroshenko
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Patent number: 6530358Abstract: In a method for controlling an internal combustion engine by means of interventions in at least one manipulated variable of the internal combustion engine, a setpoint torque or work which is to be performed is determined at the crankshaft of the internal combustion engine, wherein, with respect to a first variable as work which is to be performed or a setpoint torque to be provided, a corresponding setpoint quantity of heat is determined taking into account the instantaneous actual efficiency, with respect to which at least one associated manipulated variable is set in accordance with the value of the set-point quantity of heat, and, for precise setting of the torque, the actual quantity of heat also being sensed, a setpoint efficiency being determined from the actual quantity of heat taking into account work which is to be performed or a setpoint torque which is to be provided, this can correspond to the first variable or to another variable which is formed as a setpoint torque or work which is to be performType: GrantFiled: September 17, 2001Date of Patent: March 11, 2003Assignee: DaimlerChrysler AGInventors: Dieter Kalweit, Sven Merkle, Andrej Panten, Tobias Roulet
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Patent number: 6530359Abstract: The invention relates to a generating unit driven by a combustion engine. Control of the engine speed is carried out in a known manner via a mechanical control device which controls a throttle valve in the carburetor system of the engine. In case of a failure of the mechanical control device and, consequently, in case of a change in the engine speed outside a predetermined range, an electronic control system takes over to activate a firing element of the engine and control the engine speed, independently from the mechanical control system, in such a way that the engine speed is maintained within the predetermined range.Type: GrantFiled: February 26, 2001Date of Patent: March 11, 2003Assignee: Wacker Construction Equipment AGInventor: Michael Steffen
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Patent number: 6530360Abstract: Electronic control apparatus including a V-type multi-cylinder internal combustion engine having right and left banks of cylinders 1a and 1b, a crank-angle detecting device 12 for a camshaft of one bank 1a and which outputs a rotational-angle signal, a cylinder determination device 14 for generating a determination signal of which cylinder is to be ignited, an intake-air volume measuring device 4 for measuring an intake-air volume, and an ECU 18 for inputting the intake-air volume, the rotational-angle signal and the cylinder determination signal to calculate a rotational speed and ignition timing. The electronic control apparatus is configured so that ECU 18 inputs the rotational-angle signal from the crank-angle detecting device 12 and predicts a signal period of the next time from a state of change in the signal period of the same bank and sets ignition timing of the next time based on this predicted result.Type: GrantFiled: August 15, 2000Date of Patent: March 11, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Katsuhiko Kondo
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Patent number: 6530361Abstract: A cylinder-inside state (temperature or pressure) after compression inside a combustion chamber of an engine is estimated or detected before occurrence of a combustion phenomenon, an EGR quantity and opening and closing timing of and intake valve are controlled.Type: GrantFiled: July 6, 2000Date of Patent: March 11, 2003Assignee: Hitachi, Ltd.Inventors: Takuya Shiraishi, Toshiharu Nogi, Minoru Ohsuga
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Patent number: 6530362Abstract: To provide a tandem valve type throttle body in which a closing direction of a second throttle valve is not restricted to one side, can an intake efficiency can be improved, and an entire length of a throttle body can be reduced, a butterfly type first throttle valve (3) is attached to a first throttle valve shaft (4) and operated by an accelerator, a butterfly type second throttle valve (5) is disposed in an upstream side of the first throttle valve (3) and attached to a second throttle valve shaft (6), the second throttle valve (5) is formed in an always open type and operated so as to be closed by an electromagnetic actuator, an axial pitch (P) between the first throttle valve shaft (4) and the second throttle valve shaft (6) is twice a radius (R) of the throttle valve (3) or less, and a notch portion (5B) is formed in the second throttle valve (5) in correspondence to an interference portion on planes of both the throttle valves (3, 5) at a time of fully opening both the throttle valves (3, 5).Type: GrantFiled: July 10, 2002Date of Patent: March 11, 2003Assignee: Keihin CorporationInventor: Yoichi Yanagii
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Patent number: 6530363Abstract: Pressurized injector actuation fluid, such as oil or fuel, is supplied to high pressure common rail by a fixed displacement fluid pump. Variable delivery from the pump is achieved by selectively spilling pumped fluid through a digital-acting by-pass or spill valve. The by-pass valve is actuated by a momentary electrical signal, which causes internal fluid pressure in the valve to latch it in a closed condition. The digital-acting by-pass valve permits high precision variations in the pump delivery with rapid response times. Unit pump configurations, radial pump configurations, and axial pump configurations are disclosed for both fuel injection applications and non-fuel injection applications. A single pump with plural pistons can be used to power multiple independent hydraulic systems.Type: GrantFiled: April 14, 2000Date of Patent: March 11, 2003Assignee: Caterpillar IncInventors: James R. Blass, Dennis H. Gibson, Mark F. Sommars
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Patent number: 6530364Abstract: The invention concerns a ventilating device for a motor vehicle fuel tank wherein a valve (12) is equipped with a ball (20) arranged in a chamber (14) wherein emerges an intake orifice (16) which opens into the center of a lower wall (19) concave upper surface (22) of the chamber (19), the ball (20) being supported on the concave upper surface (22). The invention is characterised in that the slope, relative to the horizontal, of the concave upper surface (22) decreases in the direction radially away from the axis (A1).Type: GrantFiled: November 30, 2000Date of Patent: March 11, 2003Assignee: Compagnie de Materiel et d'Equipements Techniques C.O.M.E.T.Inventor: Christian Romanek
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Patent number: 6530365Abstract: The fluid displacement pump enables substantially continuous pumping from a low-pressure side to a high-pressure side substantially without any backflow or backpressure pulsations. Liquid or gas is injected to the high-pressure side by way of mutually intertwined worm spindles that form a fluidtight displacement system. The blades of the impeller system are almost flat, i.e., their attack angle relative to backpressure is close to perpendicular so that they will turn quite freely in the forward direction, but will not be turned backwards by a pressurized backflow. The impeller rotation that is introduced via the spindle shafts nevertheless leads to a volume displacement towards the high-pressure side, for instance, towards a chamber to be pressurized or to be subjected to equal pressure. The impeller system can be driven with variable speed, which translates proportionally in a variable pressure buildup.Type: GrantFiled: February 9, 2001Date of Patent: March 11, 2003Inventor: Arthur Vanmoor
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Patent number: 6530366Abstract: An apparatus for gas recirculation in an internal combustion engine in which recirculation is effected via a connecting line (2) in which a filter element (4) is arranged between the exhaust duct and the connection on the intake device of the internal combustion engine.Type: GrantFiled: August 7, 2001Date of Patent: March 11, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Michael Geiger, Thomas Jessberger
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Patent number: 6530367Abstract: An engine air-oil separator provided in a head cover for separating oil contents in blow-by gases that are recirculated to an intake system, wherein a centrifugal separation chamber for generating swirl flows in the blow-by gases is formed integrally with the head cover by a rib-like wall protruding inwardly from an internal surface of an external wall of the head cover, whereby since the centrifugal separation chamber can be embedded in the head cover, the space saving can be attained.Type: GrantFiled: February 13, 2002Date of Patent: March 11, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshihiro Akiwa, Masayuki Takahashi, Teruaki Kitano
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Patent number: 6530368Abstract: A magazine for an air gun of this invention can be freely attached to and detached from an air gun body using a magazine body, and has a plurality of pellet holders capable of being loaded with one pellet at a time. The plurality of pellet holders move orbitally about a pellet holder path and the pellets can be fed one at a time from the pellet holders towards a rotary sub chamber positioned below. With the air gun of this invention, the direction of the rotary sub chamber can be changed by shifting a rotary sub chamber positioned below the magazine, a trans link and a bolt forwards and backwards, so that the direction of single pellets dropping from the magazine can be changed by ninety degrees for feeding into the barrel. The magazine conveyor link is also interlocked so as to move to the front and rear in unison with movement to the front and rear of the trans link.Type: GrantFiled: April 5, 2002Date of Patent: March 11, 2003Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 6530369Abstract: A solar radiation concentrating system (1) comprises at least two reflectors (12, 16) successively arranged along an optical path (4) of the system (1) so that a first (12) of the two reflectors (12, 16) reflects the radiation towards a second (16) of the two reflectors (12, 16). The reflectors (12, 16) have such spectral characteristics as to be capable of highly reflecting the radiation in a reflection range of wavelengths and absorbing the radiation in an absorption range of wavelengths, wherein the absorption range of wavelengths of the first reflector (12) substantially includes the absorption range of wavelengths of the second reflector (16).Type: GrantFiled: September 10, 2001Date of Patent: March 11, 2003Assignee: Yeda Research and Development Co. Ltd.Inventors: Amnon Yogev, Michael Epstein
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Patent number: 6530370Abstract: A nebulizer apparatus to atomize liquid solutions or suspensions. The nebulizer is typically used in conjunction with a breathing circuit to deliver atomized medicine to a patient. A housing with an opening covered by a thin mesh plate is supplied with the liquid to be nebulized on an “on-demand” basis. The mesh plate or liquid is vibrated at ultrasonic frequencies to atomize the liquid as it passes through the plate into breathing gases flowing through the breathing tube.Type: GrantFiled: September 16, 1999Date of Patent: March 11, 2003Assignee: Instrumentation Corp.Inventor: Erkki Heinonen
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Patent number: 6530371Abstract: A drug delivery system for administering preset doses of a substance such as a drug, vaccine or the like is provided. The drug delivery system includes a holder and a pre-filled drug container such as a syringe which is securely retained in the holder. The drug container includes a barrel for containing the substance, a movable stopper situated within the barrel, and a blunt end having an opening through which the substance within the barrel can be expelled. The holder includes a distal portion and a proximal portion, each configured to accommodate the drug container, with the distal portion being able to be assembled to the proximal portion, which acts as a plunger rod during activation of the delivery system.Type: GrantFiled: November 5, 2001Date of Patent: March 11, 2003Assignee: Becton, Dickinson and CompanyInventors: Hubert Jansen, Lionel Vedrine
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Patent number: 6530372Abstract: The present invention provides an automated respiration method involving positive airway pressure. The method comprises a step for measuring the respiratory gas flow and comparing it with a threshold value. A further step is provided for assessing any obstructive respiratory disturbance. An evaluation step evaluates the measurement values and determines whether it is a case of normal breathing, obstructive respiratory disturbance, non-obstructive respiratory disturbance or snoring. Depending on the results provided by the evaluation step, the positive airway pressure is either maintained or modified. It is the advantage of the invention that the respiratory gas flow as well as the airway obstruction are continuously measured, thereby enabling the positive air pressure to be adjusted to different individual states of the patient.Type: GrantFiled: December 6, 1999Date of Patent: March 11, 2003Assignee: MAP Medizintechnik für Arzt und Patient GmbHInventors: Stefan Madaus, Harald Vögele, Jutta Griebel
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Patent number: 6530373Abstract: A respirator mask seal and shell are provided according to one embodiment of the invention. The respirator mask seal and shell includes a mask shell having a face opening, a slot for air passage, and at least one attachment portion spaced around the face opening. They also include a movable interface having a hose connector and a contoured opening adapted to fit against the mask shell. The contoured opening is slidable over the slot and is capable of being positioned on the mask shell. The mask seal has a flexible sidewall having distal and proximal ends and includes a rounded outer seal portion located on the distal end of the sidewall, a rounded inner seal portion located between the distal and proximal ends, and a support ring embedded in the sidewall. The inner seal portion is thicker than the outer seal portion and is non-continuous. The support ring includes at least one attachment portion adapted to engage the at least one attachment portion of the mask shell.Type: GrantFiled: August 4, 2000Date of Patent: March 11, 2003Assignee: Mallinckrodt Inc.Inventors: Anthony P. Patron, Michael Sullivan, Gary L. Hansen, Bradley J. Bonnette, John W. Lai, Christine G. Kronich, Steven S. Bordewick, Clifford T. Jue, Dan P. Wilkins, Jeff C. Weintraub
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Patent number: 6530374Abstract: Air filter device comprising at least one filter element provided with means in the form of a mouthpiece allowing the user to grip and retain the device.Type: GrantFiled: January 24, 2001Date of Patent: March 11, 2003Inventor: Fausto Ferraro
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Patent number: 6530375Abstract: An appliance of relatively soft thermoplastic material is applied to the teeth of the mandible or maxilla and has contact points or fulcrums bisecting both premolars bilaterally up to the vertical midpoints of each premolar. By forming raised contact points or fulcrums, a pivoting location spaced from the tempromandibular joint is provided. When the individual clenches the teeth, the mandible pivots about the contact points or fulcrums of the appliance, relieving the pressure and stress on the joint, thereby relieving the symptoms and adverse effects of TMJS.Type: GrantFiled: March 22, 2000Date of Patent: March 11, 2003Inventor: Charles R. Cieslik, Jr.
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Patent number: 6530376Abstract: A surgical drape manufactured or fabricated from a polymeric film having a low glare finish and a predetermined coloration for reducing the luminous intensity of light reflected from the surface thereof is provided. Such surgical drape thereby minimizes reflectivity therefrom, and thus eye strain and fatigue. The subject invention includes the use of colorants, dyes, pigments, etc. to form translucent polymeric surgical drapes that absorb a selected range of wavelengths from surface reflected light. More particularly, the use of coloring agents in combination with a textured surface yield a surgical drape possessing reduced luminance and glare, thereby mitigating eye strain and fatigue. The preferred range of reflected light, in order of preference, is 625-700 nm, 520-560 nm, 450-520 nm, 400-450 nm, 600-625 nm, and 560-600 nm.Type: GrantFiled: October 10, 2001Date of Patent: March 11, 2003Assignee: Medical Concepts Development, Inc.Inventors: David B. Padget, Leland W. Annett, Timothy P. Smalstig
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Patent number: 6530377Abstract: A tobacco smoke filter comprising a porous substrate comprising dry water and a porphyrin dispersed therein. The porous substrate can further comprise microcapsules. The microcapsules can comprise one or more substances selected from the group consisting of chlorophyllin, methylcellulose, sodium pyroglutamate and a vegetable oil. The porous substrate can further comprise sodium pyroglutamate.Type: GrantFiled: November 20, 2000Date of Patent: March 11, 2003Assignee: Filligent LimitedInventors: Craig Lesser, Reid W. Von Borstel
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Patent number: 6530378Abstract: A liquid-reservoir hairbrush that is capable of evenly dispersing water-based solutions and other thin and non-viscous liquids over the user's scalp and/or through the user's hair during routine hair brushing. Absorbent filler unit(s) are placed into a chamber of the hairbrush body and absorbent feed rods are placed into bores of the hairbrush bristles. Liquid from the absorbent filler unit(s) is supplied to the absorbent feed rods. The hairbrush can be provided with three different types of liquid outlets (viz., nozzles). The absorbent feed rods interconnects the absorbent filler unit(s) and the nozzles located at the hairbrush bristles. The chamber of the hairbrush body can be divided into multiple, hermetically isolated sections. The hairbrush body can have an optional filler inlet and can come with an optional liquid refilling unit which can hold a predetermine volume of the liquid.Type: GrantFiled: June 7, 2000Date of Patent: March 11, 2003Inventor: Andrey Piatetsky
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Patent number: 6530379Abstract: A method of applying cosmetic pigment powder onto an applicator structure sheet in a desired pigment pattern includes the steps of providing an applicator structure sheet formed of at least one and preferably several laterally interconnected applicator structures; providing a silk screen apparatus having a piece of stencil silk or equivalent stencil sheet material known a bolting cloth stretched across a wooden frame; dissolving conventional cosmetic pigment powder in a suspension liquid; creating a stencil including a desired pattern for one applicator structure and preferably an array of patterns for several applicator structures; placing the stencil onto the silk screen, which acts as a support; using a squeegee or equivalent device to force the pigment liquid through the open areas in the stencil and through the silk screen onto the applicator structure sheet and thereby printing the one or arrayed several patterns onto the applicator structure sheet; and removing the applicator structure sheet from the aType: GrantFiled: May 8, 2001Date of Patent: March 11, 2003Inventor: Irina Iosilevich
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Patent number: 6530380Abstract: A method for completely removing dielectric layers formed selectively upon a substrate employed within a microelectronics fabrication from regions wherein closely spaced structures such as self-aligned metal silicide (or salicide) electrical contacts may be fabricated, with improved properties and with attenuated degradation. There is first provided a substrate with employed within a microelectronics fabrication having formed thereon patterned microelectronics layers with closely spaced features. There is then formed a salicide block layer employing silicon oxide dielectric material which may be selectively doped. There is then formed over the substrate a patterned photoresist etch mask layer. There is then etched the pattern of the patterned photoresist etch mask layer employing dry plasma reactive ion etching. An anhydrous etching environment is then employed to completely remove the silicon oxide dielectric salicide block layer with attenuated degradation of the microelectronics fabrication.Type: GrantFiled: November 19, 1999Date of Patent: March 11, 2003Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Mei Sheng Zhou, Vincent Sih, Simon Chooi, Zainab Bte Ismail, Ping Yu Ee, Sang Yee Loong
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Patent number: 6530381Abstract: A process for the wet-chemical surface treatment of a semiconductor wafer following a mechanical surface treatment, in particular following a mechanical surface treatment in a lapping machine, includes a sequence of treatment steps. The process essentially includes a wet-chemical surface cleaning, preferably for neutralizing and eliminating the lapping slurry, an acid etching treatment, preferably for eliminating the mechanically imposed damage and for surface smoothing and removal of metals. There is a final step of drying and rendering the cleaned and etched surface hydrophilic.Type: GrantFiled: November 2, 2000Date of Patent: March 11, 2003Assignee: Wacker Siltronic Gesellschaft Für Halbleitermaterialien AGInventors: Günter Schwab, Karlheinz Langsdorf, Maximilian Stadler, Edeltraut Pichelmeier
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Patent number: 6530382Abstract: Methods for cleaning screw extruder, especially powder-coating extruders, include filling the extruder barrel with a gel purge formulation comprised of a high-boiling pyrrolidone or piperidone (lactam) solvent (most preferably N-methyl pyrrolidone (NMP)), thickened with 5-50 wt. % of a thermoplastic resin thickening agent, most preferably polystyrene (PS). Once the extruder barrel is filled with the gel purge formulation, the screws are stopped and the gel allowed to soak for between about 10 to about 30 minutes. The screws are then restarted and the gel is discharged from the extruder. Immediately after the gel purge formulation exits the machine, a small amount of a thermoplastic “rinse” polymer (e.g., polyethylene) may be added so as to remove any vestigial amount of the gel purge formulation therefrom.Type: GrantFiled: June 6, 2001Date of Patent: March 11, 2003Assignee: BASF CorporationInventor: Mark W. Waldrop
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Patent number: 6530383Abstract: The invention relates to an aqueous agent which is provided for cleaning hard surfaces and which comprises a pH value of greater than 7. The inventive agent comprises: A) 5 to 45 wt. % of at least one polymer which is soluble in the alkaline medium, which is not cross-linked by metal ions, and which has a temperature of film formation ranging from 0 and 80° C.; and B) 2 to 90 wt.Type: GrantFiled: October 2, 2001Date of Patent: March 11, 2003Assignee: Ecolab GmbH & Co. OHGInventors: Karl-Heinz Rogmann, Birgit Skodell, Heiko Faubel
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Patent number: 6530384Abstract: Potentiated compositions and methods for disinfection of porous surfaces, such as ceiling tiles contaminated with bacteria and fungi permits renewal without requiring replacement tiles. The compositions, preferably water clear aqueous solutions, comprise synergistic combination of quaternary ammonium compound, a surfactant, and a hydrogen peroxide solution at very low concentrations than otherwise required if used alone. The active components are present in minimal proportional ranges sufficient to achieve a virtual 100 percent kill of bacteria and fungi present on surfaces.Type: GrantFiled: July 30, 2001Date of Patent: March 11, 2003Inventors: Stephen J. Meyers, Lyn M. Dyster
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Patent number: 6530385Abstract: An apparatus for wet cleaning or etching of flat substrates comprising a tank with an inlet opening and outlet opening for said substrates. Said tank contains a cleaning liquid and is installed in a gaseous environment. At least one of the openings is a slice in a sidewall of the tank and is present below the liquid-surface. In the tank there may be a portion above the liquid filled with a gas with a pressure being lower than the pressure within said environment. The method comprises the step of transferring a substrate through the cleaning or etching liquid at a level underneath the surface of said liquid making use of said apparatus.Type: GrantFiled: December 29, 2000Date of Patent: March 11, 2003Assignee: Interuniversitair Microelektronica Centrum (IMEC)Inventors: Marc Meuris, Paul Mertens, Marc Heyns
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Patent number: 6530386Abstract: A method for cleaning returnable bottles and similar containers used in the food industry. The method uses an enzymatic solution during the cleaning process. The cleaning results are at least as good as conventional methods, without requiring an increase in the duration of cleaning. The method substantially reduces bottle corrosion and waste water pollution compared to conventional methods.Type: GrantFiled: October 2, 2001Date of Patent: March 11, 2003Assignee: Henkel Ecolab GmbH & Co. OHGInventors: Siegfried Bragulla, Brian Glanville, Andreas Potthoff, Harald Kluschanzoff, Alfred Laufenberg
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Patent number: 6530388Abstract: Described are cleaning methods and apparatus that minimize the volume of hazardous materials used and created when cleaning components, and further to minimize the possibility of cross-contamination between components from different deposition chambers. Components to be cleaned are stored within or supported by a dedicated cassette before they are placed in a receptacle of cleaning liquid. The cassette displaces a significant percentage of the receptacle's volume; consequently, only a relatively small volume of cleaning liquid is needed to fully submerge the component. In typical embodiments, the combined cassette and component displace a volume of liquid that is greater than the volume of liquid used to clean the component. One embodiment of the invention reduces the requisite volume of cleaning solution using a number of liquid-displacing elements (e.g., balls) contained within a cleaning receptacle.Type: GrantFiled: February 15, 2000Date of Patent: March 11, 2003Assignee: Quantum Global Technologies, LLCInventors: Dwight J. Zuck, David S. Zuck
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Patent number: 6530389Abstract: The invention relates to an existing pipe cut-off method and slitting method, by which an existing pipe made of cast iron and steel can be cut off. With a cut-off method according to the invention, first, a part of an existing pipe 1 is enclosed and sealed up by a seal-up housing 2 in an airtight state, a cutting tool 30 having a plurality of blades 30c is accommodated in the corresponding seal-up housing in a state the cutting tool is attached to the abovementioned seal-up housing 2. Next, the cutting tool 30 is fed toward the center of the abovementioned existing pipe 1 while slitting the existing pipe 1 by rotating the cutting tool 30 by power of a prime mover, and the abovementioned existing pipe 1 is cut off by the cutting tool 30 by turning the abovementioned seal-up housing 2 in the circumferential direction R of the existing pipe 1.Type: GrantFiled: June 17, 2002Date of Patent: March 11, 2003Assignee: Suiken Co., Ltd.Inventors: Toshiyuki Sato, Hideshige Homma, Tamotsu Yamashita, Gumpei Yokoyama
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Patent number: 6530390Abstract: The invention provides a pressure reducing valve in which a minimum pressure can be secured even when an engine speed is reduced. A pressure reducing valve changing an output pressure in correspondence to an engine speed has means for outputting a predetermined minimum pressure when the engine speed is equal to or less than a first predetermined rotational speed.Type: GrantFiled: June 18, 2001Date of Patent: March 11, 2003Assignee: Komatsu LimitedInventors: Shinobu Nagura, Shuuji Hori
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Patent number: 6530391Abstract: A temperature and pressure sensitive valve is disclosed herein. The valve has a valve piston for regulating flow through the valve, a valve piston guide for directing movement of the piston, the piston guide having one or more passages there through, a thermal element for enabling movement of said piston, and an elongated housing having an anterior and posterior end and an interior wall able to house said piston, guide and thermal element. The housing further has two or more passages able to aid the piston in regulating flow, with at least one of the passages placed towards said anterior end of the housing, and at least one of the passages placed towards said posterior end of the housing.Type: GrantFiled: August 31, 2001Date of Patent: March 11, 2003Assignee: Research by Copperhead Hill, Inc.Inventor: Robert D. Dulin
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Patent number: 6530392Abstract: The present invention is a valve cleaning apparatus and method for transporting a cleaning fluid from a supply tank into the air intake valves of a combustion engine. It comprises housing having a pair of legs and a closed end. The housing has a flow path through the housing. A valve is located collinear with the flowpath. The valve cleaning apparatus also includes tubing, a nozzle and a hook to hang the assembly from the hood of a car.Type: GrantFiled: January 23, 2002Date of Patent: March 11, 2003Assignee: Finger Lakes Chemicals, Inc.Inventors: Ewald R. Blatter, Hans C. Blatter, Daniel M. McBride, David J. Knapp
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Patent number: 6530393Abstract: A fuel tank for a motor vehicle has at least one reservoir which is arranged within the fuel tank, and a fuel pump associated with the reservoir. A filling conduit for filling the tank with fuel is of such a design that at least a partial flow of the fuel flowing through the filling conduit can be fed directly to the reservoir. The filling conduit opens at its delivery end into an open catch receptacle which communicates with the reservoir by way of at least one discharge.Type: GrantFiled: August 28, 2001Date of Patent: March 11, 2003Assignee: Kautex Textron GmbH & Co. KGInventor: Georg Reinelt
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Patent number: 6530394Abstract: A gas tank on-off switch structure includes a main body and a leakproof member which is structurally independent of the main body and is detachably fastened to the main body. The main body is connected with the interior of the gas tank. The leakproof member is formed of a fastening body, an elastic member, a plug, and a locating body. The fastening body is fastened to the main body and a gas pipe connector. The elastic element and the plug are located in the fastening body in conjunction with the locating body. The plug serves to prevent the gas leak in conjunction with the elastic element.Type: GrantFiled: January 23, 2002Date of Patent: March 11, 2003Inventor: I-Chih Pai
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Patent number: 6530395Abstract: A check valve arrangement utilizes a disc (15) for a valve member while eliminating the need for a ball. A valve seat in the common sense is unnecessary, too. Instead, a substantially flat surface (13) interacts with the disc (15). In order to allow unidirectional flow only, the disc (15) is biased toward the surface (13) by means of an elastic bias ring (17) which itself is held in place by a retainer (6) extending through the center hole (16) of the disc (15) and thereby axially guiding the disc (15). If desired, the flat surface (13) can be supplemented with an embedded sealing ring 18 to provide optimum sealing properties without precise machining of the surface (13). By designing the disc (15) and the retainer (6) in rotational symmetry, a directional adjustment of the parts is made unnecessary.Type: GrantFiled: June 25, 2001Date of Patent: March 11, 2003Assignee: Continental Teves, Inc.Inventor: Michael James Cunningham
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Patent number: 6530396Abstract: A valve coupler for delivering air into a propane tank for converting a propane tank to a portable pressurized air tank. The device includes a tubular member having a first end, a second end and a peripheral wall. The tubular member has an elongated hole extending therethrough. The tubular member has a first portion, a second portion and a middle portion. The first portion abuts the first end and defines a male coupler having a threaded outer surface. The hole in the second portion has a threaded inner wall and defines a female coupler. The peripheral wall of the middle portion has a first aperture therein extending into the hole. The first aperture is threaded. The male coupler may be coupled to a propane tank valve. A valve is removably positioned in and threadably coupled to the first aperture for delivering air into the propane tank.Type: GrantFiled: May 11, 2001Date of Patent: March 11, 2003Inventor: Donald D. Frey
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Patent number: 6530397Abstract: A multi-channel rotary joint including a first joint structural member rotatably linked to a second joint structural member. Sealing regions defined and formed by mechanical seals that are lined up concentrically around relative rotational axis are provided between opposing peripheral surfaces in a relative rotational axial direction of the first and second joint structural members. A plurality of channels passing independently through the sealing regions (except for the sealing region which is used as a drain region) are provided for the first and second joint structural members, and an electrical wire insertion path is provided so as to pass through the inner peripheral region of a mechanical seal that has the smallest diameter. A drain path that opens into the drain region is provided for the joint structural member.Type: GrantFiled: June 19, 2001Date of Patent: March 11, 2003Assignee: Nippon Pillar Packing Co., Ltd.Inventors: Osamu Suzuki, Yasutaka Iwamoto
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Patent number: 6530398Abstract: A multi-layer paper machine wire includes an upper fabric layer, a lower fabric layer and an additional layer disposed between the upper and lower fabric layers. The additional layer includes weft threads that alternate with binding threads. Warp threads of the upper fabric layer run over the weft threads of the additional layer and are interwoven with binding threads of the additional layer. Likewise, weft threads of the lower fabric layer run below the weft threads of the additional layer and are interwoven with binding threads of the additional layer.Type: GrantFiled: December 22, 1999Date of Patent: March 11, 2003Assignee: Voith Fabrics Heidenheim GmbH & Co. KGInventor: Arved H. Westerkamp
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Patent number: 6530399Abstract: A system and a method for delivering and metering a fixed volume of liquid, such as a liquid sterilant from a container into a vaporization system. The method for the delivering system includes the steps of sensing a requirement for additional liquid sterilant, determining whether the liquid sterilant to be added is acceptable for use, and delivering the liquid sterilant from a container into an accumulator. The method of metering the liquid sterilant into the vaporization system includes creating a vacuum in a chamber connected to the vaporizer and delivering the liquid sterilant into a vaporizer while continually sensing the flow of the delivery. The metering system maintains a slow, controlled flow in order to achieve efficient vaporization of the liquid sterilant and to provide accurate sensing of the gas/liquid interface.Type: GrantFiled: May 1, 2001Date of Patent: March 11, 2003Assignee: Ethicon, Inc.Inventors: Nick Ngoc Nguyen, Ross G. Krogh
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Patent number: 6530400Abstract: A carbonated beverage is conveyed from a source to a closed reservoir at a first pressure level. The pressure in the reservoir is controlled by selectively venting gas and adding pressurized gas to the reservoir to maintain the carbonated beverage at a second pressure level that is less than the first pressure level and substantially greater than atmospheric pressure. The carbonated beverage is dispensed from the reservoir into a serving container by reducing the pressure in the reservoir to substantially atmospheric pressure and then opening an outlet valve. During prolonged periods when dispensing is not occurring, the pressure in the reservoir may be increased to prevent degassing of the carbonated beverage. In that case, the reservoir pressure is reduced to the second pressure level before another dispensing operation.Type: GrantFiled: February 5, 2002Date of Patent: March 11, 2003Assignee: Dispensing Systems International, Inc.Inventor: Patrick L. Nelson