Patents Represented by Law Firm Mayer, Brown and Platt
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Patent number: 6075251Abstract: The present invention relates to a transmission method and device for efficient compression of digital data. The invention uses an optoelectronic coupler to receive light signals from a light transmitter at two bandwidths. A modulated signal generator is coupled to the transmitter which coverts voltage phase data signals to light signals. The data signals are modulated with a plurality of master profiles and subprofiles with different cycle time variations. The optoelectronic coupler has a pair of photodiodes. Light filters disposed on both diodes allow either the first or second bandwidth of light to pass. Conductors electrically couple the anode of the each photodiode to the cathode of the other photodiode which produce the voltage phase signal. A signal receiver is connected to the coupler and decodes the voltage-phase signal.Type: GrantFiled: May 14, 1999Date of Patent: June 13, 2000Assignee: Alan Y. ChowInventors: Alan Y. Chow, Vincent Y. Chow
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Patent number: 6069365Abstract: An image processing system for capturing and compressing images into a digital format is disclosed. The system has an array of imaging pixel elements which consist of two photodiode detectors. One photodiode detector is a capture detector while the other detector is a reference detector. The capture detector has an anode electrically coupled to the cathode of the reference detector. The cathode of the capture detector is electrically coupled to the anode of the reference detector. An image may be compared to a reference image detected by the reference detector. Different levels of light between the captured image and the reference image change the electrical output of the opsistor. Image compression is facilitated since only pixel elements which change from frame to frame need be stored. Additionally, a processing and compression circuit may use column and row scans to eliminate unchanged pixels and store only pixels with different light levels between images.Type: GrantFiled: May 14, 1999Date of Patent: May 30, 2000Assignee: Alan Y. ChowInventors: Alan Y. Chow, Vincent Y. Chow
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Patent number: 6068064Abstract: Agricultural implement to be conveyed by a self propelled vehicle includes a structural frame and a substructure moveable between a raised position and a lowered position. The substructure has at least one ground engaging tool supported thereon so as to engage the ground when the substructure is moved to the lowered position. A fluid circuit is provided to control engagement of the tool with the ground. The fluid circuit includes a first check valve having a first side connectable to a source of pressurized fluid flow and a second side connected to a fluid cylinder. The fluid cylinder is operated between a retracted position and an extended position to move the substructure between the raised position and the lowered position, respectively. A second check valve is provided having a first side connected to drain and a second side connected to the fluid cylinder. A sensor assembly opens the second check valve when pressurized fluid flow is received by the first side of the first check valve.Type: GrantFiled: May 20, 1998Date of Patent: May 30, 2000Assignee: Case CorporationInventors: Leonard A. Bettin, Daniel J. Boos, Ronald M. Weber
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Patent number: 6061617Abstract: An adaptable control system for the efficient use of different implement attachments for a work vehicle is disclosed. The work vehicle has an actuator for attachment and operation of different implements. The actuator is controlled by a control unit. The control unit has an input coupled to a user operated control device. The control unit is coupled to the actuator and activates the actuator in response to the user operated control device. An attachable implement such as a loader bucket is attached to the actuator. An implement data input such as a card slot is coupled to the processor. A portable data storage device, such as a data card, corresponding with the specific implement is inserted in the data input. The data storage device transmits instruction data relating to the specific implement to the implement data input. The controller operates the actuator in accordance to the data read from the data storage device.Type: GrantFiled: October 21, 1997Date of Patent: May 9, 2000Assignee: Case CorporationInventors: Alan Daniel Berger, Richard L. Hall
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Patent number: 6058343Abstract: A system or method for controlling the position of an implement coupled to a work vehicle. The implement is moveable by a hydraulic positioning assembly including an actuator and a valve assembly which control the flow of fluid to the actuator in response to control signals. The valve assembly includes raise and lower valves, each valve requiring a control signal equal to a threshold value before the valve opens and fluid begins to flow. The system includes a sensor to detect the position of the implement and a control circuit. In response to a change in a position command, the control circuit applies a control signal to the appropriate raise or lower valve based upon the respective threshold value. The control signal may include a component for moving the implement at a desired rate of movement. After undesirable implement movement is detected, the control circuit modifies the threshold value.Type: GrantFiled: May 6, 1998Date of Patent: May 2, 2000Assignee: Case CorporationInventors: Abraham Orbach, William L. Schubert, Steven W. Seymour, Donald D. Carr
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Patent number: 6055864Abstract: In the case of a pressure sensor (1) a measuring cell (4) is fixed together with a retaining body (9) in a housing (2) of the pressure sensor. For this purpose, the housing (2) has a constriction (15) encircling it on the outside. A contact base (11), which is placed at the top onto the retaining body (9), is fixed by means of an inwardly bent section (18) of the housing (2), with the result that the pressure sensor (1) is closed in a sealed manner. The fixing of the retaining body (9) by means of the constriction (15) means that the pressure sensor (1) is also suitable for particularly high pressures with the risk that the retaining body (9) could slip in the housing (2) due to the pressure acting on the measuring cell (4) being excluded.Type: GrantFiled: April 2, 1999Date of Patent: May 2, 2000Assignee: Mannesmann VDO AGInventors: Rudolf Stiller, Norbert Schmidt, Ivan Grgec-Messner, Klaus-Dieter Meese
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Patent number: 6053811Abstract: An apparatus for use in combination with a combine for sensing the volume of tailings exhausted from a cleaning section of the combine and for providing a visual indication to the operator of the effectiveness of combine operation. The combine includes a mobile frame or chassis having an operator compartment arranged toward a forward end thereof. A threshing section of the combine separates grain from crop material delivered thereto. A cleaning section of the combine functions to remove chaff and tailings from the materials received from the threshing section. A tailings section of the combine is arranged to receive incompletely threshed and separated tailings from the cleaning section. The tailings section comprises a tailings conveyor for forcibly moving tailings toward an elevator that moves the tailings to one of the other sections on the combine for recycling.Type: GrantFiled: October 10, 1996Date of Patent: April 25, 2000Assignee: Case CorporationInventors: Orlin W. Johnson, Dale W. Panoushek, Eric L. Walker, Mark J. Svitak, Robert C. Garms
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Patent number: 6050286Abstract: The present device relates to an apparatus and method for automatically sequencing the flow of fluid between one fluid source and at least two fluid chambers in response to an interruption of fluid flow or pressure. Particularly, the device relates to irrigation. In its preferred embodiment, the apparatus is a sequencing valve that includes a two-sided flapper valve that is controlled by a spring and piston mechanism in order to direct fluid flow between chambers. In an alternate embodiment, the device includes a mechanism that also allows manual sequencing of fluid flow.Type: GrantFiled: August 7, 1998Date of Patent: April 18, 2000Assignee: L.R. Nelson CorporationInventors: Thomas R. Kruer, Kenneth J Bruninga, Gary Redhead
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Patent number: 6047652Abstract: A seed planter distribution system for transporting seeds from a source into a plurality of seed metering bins, the system including a manifold duct and a plurality of seed flow diverting structures that extend from the manifold into each metering bin, whereby each metering bin is filled in accordance with the flow of air available thereto.Type: GrantFiled: May 12, 1998Date of Patent: April 11, 2000Assignee: Case CorporationInventors: Douglas Samuel Prairie, Bradley John Meyer, Timothy Allen Murray, Eugene Irving Breker
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Patent number: 6044614Abstract: A method of constructing concrete structures using reusable formwork comprising the steps of positioning and securing base portion formwork comprised of at least a pair of opposing panels; positioning and securing upper portion formwork on top of the base portion formwork, each upper portion formwork comprised of at least a pair of opposing panels; pouring concrete between the panels and allowing it to set; and removing the formwork. The method further comprises the steps of providing blanking panels for windows and doors and providing insulation within the walls.Type: GrantFiled: April 13, 1998Date of Patent: April 4, 2000Assignee: Newtec Concrete Construction Pty LimitedInventor: Stanley Bryant
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Patent number: 6045163Abstract: Plumbing assembly to route plumbing between two chambers such as between two compartments of a piece of machinery or equipment. The plumbing assembly comprises a plumbing component, a plate member through which the plumbing component is routed, and a fastener for securing the plumbing component. The plumbing component has an outer cross-sectional shape, and the plumbing component can have two portions, one portion being angled or curved from the other. Examples of plumbing components that can be used with the plumbing assembly of the invention are pipes, hoses, and tubes for conveying fluids, either liquid or gas. The plate member has a hole defined therethrough to receive the plumbing component. The hole is shaped to engage the outer cross-section of the plumbing component to prevent rotation of the plumbing component within the hole. The fastener prevents axial movement of the plumbing component within the hole.Type: GrantFiled: April 28, 1998Date of Patent: April 4, 2000Assignee: Case CorporationInventor: John M. Moffitt
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Patent number: 6045766Abstract: The invention relates to a process for reducing the residual hydrogen fluoride gases in a fluorinated plastic tank, in particular in a plastic tank for a motor vehicle, in which firstly the space within the tank is subjected to a fluorination step and then, in at least one gas flushing process, the reaction products of the fluorination step are removed from the plastic tank. In a process in which the undesired reaction product hydrogen fluoride is completely eliminated and which is suitable for efficient large-scale production, after the gas flushing process, a neutralization step is carried out to bind residual fluorination gases on the inner layers of the plastic tank.Type: GrantFiled: May 14, 1999Date of Patent: April 4, 2000Assignee: Mannesmann VDO AGInventor: Rainer Moser
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Patent number: 6041946Abstract: An improved compact disc holder is disclosed for the safe and convenient temporary storage of a digital optical compact disc. The disc holder may be adhesive backed for conveniently mounting to a flat surface or alternately the disc holder may be incorporated into a weighted base to be self supporting. Advantageously, the disc holder provides one or more surfaces for the prominent display of an advertisement.Type: GrantFiled: October 6, 1998Date of Patent: March 28, 2000Inventors: Kalvin Watson, Raymond White
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Patent number: 6036117Abstract: A hose nozzle allowing one hand control for water stream pattern and flow rate is disclosed. The hose nozzle has a tubular body having a connector end for mating with the connector end of a hose. A hand grip having a plurality of finger notches is located around the tubular body. The hand grip allows the nozzle to be held between a user's fingers and palm. An outer sleeve member and an annular beveled collar are located in sufficient proximity to the hand grip to allow manual actuation by a user's index finger and thumb. The outer sleeve member and the annular collar may be extended or retracted by rotation. The outer sleeve member has a closed end wall with an aperture. An inner stem is located within the outer sleeve and is in fluid communication with the tubular body. The inner stem has an orifice which allows water to flow out of the inner stem and through the aperture when the outer cylinder is extended.Type: GrantFiled: August 14, 1998Date of Patent: March 14, 2000Assignee: L.R. Nelson CorporationInventors: Lawrence P. Heren, Thomas R. Keuer
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Patent number: 6027095Abstract: The invention is a pipe rupture valve having an internal servovale that comprises a valve piston that, in a setting at a steering edge, blocks the connection between two internal pressure connections of the servovalve. At a distance axially to said steering edge the valve piston has an additional steering edge that separates, sealed against fluids, a pre-loaded spring of the valve piston (or a spring area accommodating this spring) from the pressure connections.Type: GrantFiled: September 23, 1997Date of Patent: February 22, 2000Assignee: Mannesman Rexroth AGInventors: Edmund Kraft, Gunter Fertig, Walter Kirsch
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Patent number: 6025414Abstract: The present invention is directed to a novel heat moldable composition and the process for making said composition. The inventive composition comprises a blend of gelling agents, such as thermoplastic polymers, resiliency components, such as styrene-butadiene or styrene-isoprene copolymer and softening agents, such as oils.Type: GrantFiled: June 4, 1998Date of Patent: February 15, 2000Assignee: Jeffery S. RichInventor: Jeffrey S. Rich
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Patent number: D422052Type: GrantFiled: April 15, 1999Date of Patent: March 28, 2000Assignee: L. R. NelsonInventor: Lawrence P. Heren
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Patent number: D422681Type: GrantFiled: April 15, 1999Date of Patent: April 11, 2000Assignee: L.R. NelsonInventor: Lawrence P. Heren
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Patent number: D426285Type: GrantFiled: May 6, 1999Date of Patent: June 6, 2000Assignee: L. R. Nelson Corp.Inventor: Lawrence P. Heren
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Patent number: D427660Type: GrantFiled: August 6, 1999Date of Patent: July 4, 2000Assignee: L.R. Nelson CorporationInventors: Timothy R. Casica, William Gassman, David L. Hunt