Patents Represented by Attorney, Agent or Law Firm Reed Smith Hazel & Thomas LLP
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Patent number: 6173686Abstract: A valve timing control device comprising, a cam shaft assembled within an engine, a rotational transmitting member having a concave portion, which is mounted around the cam shaft to rotate relative thereto within a predetermined range for transmitting a rotational power from a crank pulley, vanes provided on the cam shaft, fluid chambers formed between the cam shaft and the concave portion, which are separated into advancing and delaying chambers by the vanes, a fluid supplying means for supplying fluid under pressure to a selected one of the advancing and delaying chambers, and a stopper located between a radially inner portion of a side wall of the concave portion and the vane to restrict rotate relative between the rotational transmitting member and the cam shaft.Type: GrantFiled: September 29, 1998Date of Patent: January 16, 2001Assignee: Aisin Seiki Kabushiki KaishaInventors: Hideki Nakayoshi, Naoki Kira, Takuya Niimi, Hidefumi Konakawa
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Patent number: 6172777Abstract: An optical interface of a holographic memory system electrically selects one of several optical pathways to store or retrieve an image from a holographic memory by activating liquid crystal polarization rotators and novel liquid crystal gratings. In a preferred embodiment a spatial light modulator, a pixelized readout device (i.e., focal-plane array), a series of polarizing optical components, liquid-crystal polarization rotators, liquid-crystal beam-steering devices, and interconnecting and imaging optics are provided. The parallel interconnection accepts a laser-beam input, divides the beam among multiple paths, imparts a data-bearing spatial signature on a signal beam by means of a spatial light modulator, steers a reference beam by means of liquid-crystal beam-steering devices, and directs the appropriate beams into the recording medium.Type: GrantFiled: September 23, 1998Date of Patent: January 9, 2001Assignee: LSA, Inc.Inventors: Kevin M. Flood, David C. Driscoll
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Patent number: 6168391Abstract: This invention relates to an oil pump apparatus which comprises an oil pump housing, a rotor rotatably located in the oil pump housing, the rotor forming a first set of pockets having a capacity increasing toward a rotating direction of the rotor and a second set of pockets having a capacity decreasing toward the rotating direction of the rotor, a plurality of suction ports connected with the first set of pockets, each of the suction ports being isolated from other adjacent suction ports, a discharge port connected with the second set of the pockets, and a control valve which includes a valve member, an urging member for urging the valve member and an urging member's chamber for disposing the urging member, the control valve being operatively positioned to control fluid flow through the plurality of the suction ports and the discharge port, and the control valve is operatively connected to select between a first condition in which the control valve connects with the suction ports and a second condition iType: GrantFiled: March 29, 1999Date of Patent: January 2, 2001Assignee: Aisin Seiki Kabushiki KaishaInventor: Hisashi Ono
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Patent number: 6168716Abstract: A cyclone separator having an improved efficiency to remove a broader spectrum of contained particles is disclosed. The transverse section of the inner wall of the cyclone separator is configured to impart changes in the rate of acceleration of a fluid as it rotates within the cyclone cavity.Type: GrantFiled: August 19, 1998Date of Patent: January 2, 2001Assignee: G.B.D. Corp.Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad, Ted Szylowiec
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Patent number: 6168846Abstract: A liner strip for lining an interior surface of a pipe including an extended plastic strip having T-shaped formations with reinforcing fibers integrally extruded in the liner strip for increasing the liner stiffness and tensile strength to resist forces imposed on the liner during installation.Type: GrantFiled: August 10, 1998Date of Patent: January 2, 2001Assignee: Danby of North AmericaInventor: Syd Molyneux
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Patent number: 6164247Abstract: An intermediate fluid type vaporizer has an intermediate fluid evaporator for containing an intermediate fluid. The intermediate fluid evaporator includes heat source tubes for evaporating the intermediate fluid, and a low-temperature liquid evaporating section for evaporating a low-temperature liquid by exchanging heat between the low-temperature liquid and the evaporated intermediate fluid. In the intermediate fluid evaporator, members for dividing the intermediate fluid, and cover plates for covering both ends of the intermediate fluid level from above are provided to prevent the intermediate fluid level from changing due to the shaking of the intermediate fluid evaporator itself. This vaporizer and an LNG tank are mounted on a ship so as to vaporize LNG in the ship and to supply the LNG to an onshore consumer.Type: GrantFiled: January 28, 2000Date of Patent: December 26, 2000Assignee: Kabushiki Kaishi Kobe Seiko ShoInventors: Masahide Iwasaki, Shinji Egashira, Tsuyoshi Oda, Kazuhiko Asada, Kuniteru Sugino
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Patent number: 6153785Abstract: A novel norbornene carboxylate compound and a method of producing the same are provided. The norbornene carboxylate compound is 8-alkyl-8-tricyclodecanyl 5-norbornene-2-carboxylate represented by formula (1): ##STR1## wherein R is methyl or ethyl.Type: GrantFiled: March 1, 2000Date of Patent: November 28, 2000Assignee: Chem Search Corp.Inventor: Hyun-jin Jung
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Patent number: 6143256Abstract: The invention provides an ozone generator controlling apparatus capable of controlling an ozone generator so that when a discharge breakdown occurs in some discharge element, the operation of generating ozone can be continued without imposing a bad influence on the remaining normal discharge elements. When an anomaly occurs in one of or a plurality of discharge elements during the operation of generating ozone, the anomaly is detected by an anomaly detection means. In response to the detection of the anomaly, first output control means reduces the output of an AC power supply circuit to a sufficiently low level so that after the discharge element having the anomaly is isolated from the circuit the operation of generating ozone can be continued with the remaining normal discharge elements without interruption and without causing the normal discharge elements to encounter an overload current thus preventing them from being broken one after another.Type: GrantFiled: June 11, 1998Date of Patent: November 7, 2000Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Misato Shinagawa, Takashi Tanioka, Mitsuo Terada, Yoshiyuki Nishimura
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Patent number: 6144690Abstract: The present invention relates to a melting method by which the melting raw materials having a variety of configurations are collectively melted to enable the composition to be adjusted in the melt, and a melting apparatus and tapping method by which tapping is readily controlled, wherein the raw materials are melted by flowing an electric current satisfying the frequency range defined by the equation below using a crucible with an inner diameter of 400 mm or more in melting using a cold crucible induction melting apparatus, the melt being tapped through a tapping nozzle provided at the bottom of the crucible and equipped with a tapping coil wound around the circumference of the nozzle:7.8.times.2.times.log(D).ltoreq.log(F).ltoreq.8.7-2.times.log(D)(wherein F denotes the frequency of a power supply and D denotes the inner diameter (mm) of the crucible).Type: GrantFiled: September 21, 1999Date of Patent: November 7, 2000Assignee: Kabushiki Kaishi Kobe Seiko ShoInventors: Tatsuhiko Kusamichi, Koichi Sakamoto, Hitoshi Ishida, Shingo Ninagawa, Motohiro Nagao, Katsuyuki Yoshikawa
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Patent number: 6141826Abstract: A cyclonic separation device is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is located and configured to extend longitudinally through a central portion of the cyclone, whereby the sharp bending of the conduit may be reduced, thereby reducing pressure losses in the device, without unduly interfering with the cyclonic flow within the cyclone. The present invention may be adapted for use with cyclonic separation devices of all types, including single- and multi-stage cyclonic separators.Type: GrantFiled: January 8, 1999Date of Patent: November 7, 2000Assignee: G.B.D. Corp.Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad
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Patent number: 6138714Abstract: An adapter is provided for connecting a dome-shaped high pressure butane gas container and a portable gas stove, the adapter comprising: a connecting body having a first opening, a gas delivery passage extending from the opening, a gas volume controller, and a nozzle body; a pressing member inserted in the first opening, and having a gas flow hole and a groove for leading gas discharged through the gas outlet into the gas flow hole; a supporting plate rotatably arranged at the lower surface of the connecting body, and having a handle, a plurality of elastic sections having stoppers and claws formed integrally from the elastic sections, and two arc-shaped holes; and a cam arranged inside the elastic sections and fixed to the connecting body by bolts, the cam having a third opening for holding the gas outlet of the high pressure butane gas container, a plurality of protrusions, and two holes for inserting the bolts.Type: GrantFiled: June 10, 1999Date of Patent: October 31, 2000Inventor: Dong-sook Kim
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Patent number: 6137199Abstract: A permanent magnet rotor alternator is disclosed having a one-piece, rotor hub.backslash.flywheel.backslash.starting gear. Three high remanence ceramic permanent magnets provide a rotor having a contiguous ring of twelve alternating poles which allows for higher alternator efficiency. The magnets are ceramic and are adhesively bound to the rotor hub, which is driven by an extended crankshaft. The rotor rotates within a wound stator assembly of which the laminated stator core is a part of the alternator's frame assembly, and thus, serves as a shield should a rotor magnet come loose.Type: GrantFiled: July 1, 1999Date of Patent: October 24, 2000Assignee: Scout Technologies, Inc.Inventor: Nathaniel Lindsley
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Patent number: 6128920Abstract: A dephlegmator includes a feed gas passage and a refrigerant passage. A feed gas introduced into the feed gas passage from the bottom is heat-exchanged with a refrigerant passing through the refrigerant passage. Components having low boiling points are withdrawn as rectified gases from the top, and components having high boiling points are discharged as condensates from the bottom. The refrigerant passage is divided into a first section on the top side and a second section on the bottom side by a bridgewall. In the first section, a liquid or gas-liquid two-phase refrigerant is introduced from the bottom of the refrigerant passage so as to flow parallel to the feed gas. In the second section, a gas fraction of the refrigerant discharged from the first section flows.Type: GrantFiled: February 26, 1999Date of Patent: October 10, 2000Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Hitoshi Matsuo, Zbigniew Urban, Masaaki Akamatsu, Masao Onaka
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Patent number: 6125804Abstract: A variable valve lift device (20) provided in a bore (21) of a cylinder head (11) to open and close a valve (24) in accordance with a rotation of a cam (13, 14, 15) comprises an outer body (22) driven by the cam (13, 14, 15) and slidably provided in the bore (21); an inner body (23) connected to the valve (24) and slidably provided in the outer body (22); a restricting member (26) for restricting mutual displacement between the outer body (22) and the inner body (23); and a synchronizing member (36) slidably provided in the inner body (23) and for controlling the restricting member (26) based on inertia applied thereto. In the present invention, the restricting member (26) is controlled by the synchronizing member (36). The synchronizing member (36) detects the acceleration of the inner body (23) so that the restricting member (26) may restrict the mutual displacement between the outer body (22) and the inner body (23) in timely manner.Type: GrantFiled: September 11, 1998Date of Patent: October 3, 2000Assignee: Aisen Seiki Kabushiki KaishaInventors: Yoshiyuki Kawai, Eiji Miyachi, Kazunari Adachi, Masahiro Nagae
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Patent number: 6122957Abstract: The invention concerns a device for balancing a wheel comprising a rim and a tire. This device comprises a unit for measuring the wheel imbalance and a unit for scanning the rim dimensions. The scanner unit and the imbalance-measuring unit are connected to a computer which determines a rim contour from the scanner unit output signals and then the optimum positions and dimensions for the balance weights from the contour determined in conjunction with values supplied by the imbalance-measuring unit.Type: GrantFiled: March 10, 1997Date of Patent: September 26, 2000Assignee: Beissbarth GmbHInventors: Hermann Bux, Peter Ross, Stefan Schommer, Michael Worm
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Patent number: 6120050Abstract: The invention is directed to a device for training on a bicycle. The device comprises a main support bar having at least an upright portion with first and second ends, a clamp at the first end for attaching the training device to the bicycle, and a handle grip at the second end. The handle grip is positioned upright so as to receive the thumb or radial side of the hand of an operator in an upward direction.Type: GrantFiled: April 29, 1999Date of Patent: September 19, 2000Inventor: Stephen L. Tillim
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Patent number: 6116878Abstract: An oil pump apparatus incorporates a housing defining therein a generally cylindrical space, an outer rotor having a substantially cylindrical outer peripheral surface disposed in rotatably sliding contact with an inner peripheral surface of the cylindrical space, the outer rotor further having an inner peripheral surface formed thereon with a plurality of circumferentially equally spaced gear teeth, and a shaft rotatably mounted in the housing.Type: GrantFiled: May 29, 1998Date of Patent: September 12, 2000Assignee: Aisen Seiki Kabushiki KaishaInventor: Yoshinori Miura
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Patent number: 6111532Abstract: There are provided a waveform shaper that shapes a waveform of a one-bit data signal obtained by subjecting an input data signal to sigma-delta modulation, to generate an output data signal, and a sigma-delta D/A converter incorporating the waveform shaper. A clock jitter-detecting device detects jitter of a clock signal used for generating the one-bit data signal and generates an error signal indicative of the detected jitter of the clock signal. An amplitude-adjusting device shapes the waveform of the one-bit data signal by using the clock signal, and adjusts amplitude of the shaped one-bit data signal in response to the error signal, to generate the output data signal.Type: GrantFiled: October 13, 1998Date of Patent: August 29, 2000Assignee: Yamaha CorporationInventors: Masamitsu Hirano, Masao Noro
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Patent number: 6105543Abstract: A valve timing control device comprising a valve opening and closing rotary shaft assembly rotatably assembled within a cylinder head of an internal combustion engine, a rotational transmitting member mounted around the peripheral surface of the rotary shaft assembly so as to rotate relative thereto within a predetermined range for transmitting a rotational power from a crank shaft, a vane provided on one of the rotary shaft assembly and the rotational transmitting member, a chamber formed between the rotary shaft assembly and the rotational transmitting member, and divided into an advancing chamber and a delaying chamber by the vane, a first fluid passage for supplying and discharging a fluid to and from the advancing chamber, a second fluid passage for supplying and discharging a fluid to and from the delaying chamber, a refuge hole formed in one of the rotational transmitting member and the rotary shaft assembly for accommodating therein a locking pin spring-biased toward the other of the rotary shaft asseType: GrantFiled: December 22, 1998Date of Patent: August 22, 2000Assignee: Aisin Seiki Kabushiki KaishaInventor: Kazumi Ogawa
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Patent number: D436157Type: GrantFiled: March 9, 1999Date of Patent: January 9, 2001Assignee: Chem Search Corp.Inventor: David Houseman