Patents Represented by Attorney, Agent or Law Firm Dorr, Carson, Sloan & Birney, P.C.
  • Patent number: 6514316
    Abstract: Capillary column oxidation in gas chromatography systems, particularly of polyimide clad columns, is a major cause of column failure and it limits the maximum temperature at which columns can be used. A gas chromatography column oven system is described which utilizes inert gas to substantially eliminate column oxidation thereby increasing column thermal stability. These column oven systems thus increase column lifetime and maximum operating temperature. The column oven systems comprise pneumatically sealed oven enclosures with sealed access ports, sealed sample line ports, and inlet and outlet gas ports to which are connected an inert gas supply and an exhaust gas control system respectively.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: February 4, 2003
    Assignee: MT Systems, LLC
    Inventors: Gregory Scott Gaisford, David L. Walters
  • Patent number: 6500156
    Abstract: A catheter flushing device includes a chamber covered with a movable member (e.g., a flexible diaphragm) that can be compressed by exertion of pressure on the diaphragm; and a valve having a first position allowing fluid from a fluid source to fill the chamber, and a second position allowing fluid from the chamber to flow through the catheter when pressure is exerted on the movable member. In particular, the catheter flushing device includes a housing having a cylindrical valve opening, an inlet port for connection with the fluid source, and an outlet port for connection with the catheter. The chamber is defined by a flexible diaphragm sealed about a region of the housing. The chamber can be compressed by manually exerting pressure on the diaphragm by means of a thumb or finger. A passageway extends through the housing from the chamber to the valve opening.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: December 31, 2002
    Assignee: McKinley Medical L.L.L.P
    Inventor: L. Dean Stansbury
  • Patent number: 6497107
    Abstract: The within invention improves on the indirect evaporative cooling method and apparatus by making use of a working fluid that is pre-cooled with and without desiccants before it is passed through a Wet Channel where evaporative fluid is on the walls to take heat and store it in the working fluid as increased latent heat. The heat transfer across the membrane between the Dry Channel and the Wet Channel may have dry, solid desiccant or liquid desiccant and may have perforations, pores or capillary pathways. The evaporative fluid may be water, fuel, or any substance that has the capacity to take heat as latent heat. The Wet Channel or excess cooled fluid is in heat transfer contact with a Product Channel where Product Fluid is cooled without adding any humidity. An alternative embodiment for heat transfer between adjacent channels is with heat pipes.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: December 24, 2002
    Assignee: Idalex Technologies, Inc.
    Inventors: Valeriy Maisotsenko, Leland E. Gillan, Timothy L. Heaton, Alan D. Gillan
  • Patent number: 6496499
    Abstract: A wireless network having a radio frequency access point and a plurality of isochronous devices wirelessly connected to the radio frequency access point. Each of the isochronous devices receives information from the radio frequency access point including isochronous device identification data and transmission timing data. A microprocessor is connected to the radio frequency transceiver and creates a transmission time-ordered list of the plurality of isochronous devices from the isochronous device identification data and the transmission timing data. A timer provides a timed reference for each isochronous device to transmit to the radio frequency access point according to the transmission time-ordered list. The time-ordered list prevents collision of information being transmitted to the radio frequency access point.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: December 17, 2002
    Assignee: SpectraLink Corporation
    Inventors: Mark Alan Hamilton, Keith Richard Amann
  • Patent number: 6483646
    Abstract: The present invention is an apparatus for monocular head displays, which enables a compact, light in weight, sturdy apparatus that has a wide angle of viewing, a bright and sharp image display that operates on low voltage in a wide range of temperatures. The image is bright and high in contrast. Due to the compactiveness and wide viewing angle, it is readily useable inside helmets and goggles and visors. The signals that can be used include data, maps, graphics or video images including infrared or other images. Because of the wide viewing angle, the module may be placed and adjusted for multiple users and field installation.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: November 19, 2002
    Inventors: Thomas P. Scott, David Witt
  • Patent number: 6481036
    Abstract: A modular cable bridging assembly has a cable protector with side ramps, and a series of channels extending between its ends to receive cables or the like. End connectors enable the cable protectors to be attached together in series to any desired length. Secondary ramps can be removably attached over each side ramp of a cable protector for handicapped access. Each secondary ramp has a base extending laterally beyond the side ramp, and an upper surface extending over the side ramp having a slope that is less than that of the underlying side ramp. A secondary ramp connector is used to removably attach the secondary ramp to the cable protector. Edge rails can be removably attached to the secondary ramps for safety and structural rigidity.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: November 19, 2002
    Assignee: Checkers Industrial Products, Inc.
    Inventor: John F. Duvall
  • Patent number: 6481713
    Abstract: A method for playing a stand-alone and a bonus casino poker dice having X dice, each of the X dice having F faces with a different symbol thereon so as to form a set {S} of symbols on each of the X dice. The method of the present invention includes the steps of placing a wager; rolling the dice; holding none, any, or all of the rolled dice; ending the casino poker dice game when the dice are all held or when re-rolling occurs Y times; paying any winning combinations of symbols based on the placed wager and in response to the step of ending the game; re-rolling the non-held dice when less than all the X dice are held; and repeating various of these steps until the game ends. Variations on this basic method are set forth for stand-alone games, bonus games, used in conjunction with underlying gaming machines, and playing a bonus game of the present invention in parallel with an underlying game so that a number of hands are played.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: November 19, 2002
    Assignee: Mikohn Gaming Corporation
    Inventors: Kenneth Allan Perrie, Olaf Vancura
  • Patent number: 6478071
    Abstract: The object of the present invention is to provide window coverings for nonrectangular windows and openings. The present invention utilizes a sliding headrail which allows a shade to be fitted exactly to a myriad of nonrectangular window shapes and to be opened or closed without placing undue stress upon the shade material or causing unsightly bunching of the shade material. A single headrail may also be used in appropriate circumstances. The sliding headrail keeps shade material neat and flat within the window frame, and if pleated or honeycombed, maintains the pleats in their natural horizontal arrangement. The window shade is not limited to the use of any particular shade materials, and can use virtually any window covering material depending on the appropriateness of the application. Shade material is attached to the sliding headrail segments at various points via shade leveling rods and support rods.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: November 12, 2002
    Inventors: Brian G. Workman, Paul T. Rogers
  • Patent number: 6471590
    Abstract: A cashless peripheral method interfacing with a gaming system. The gaming system issues a “cash-out” signal when a player quits playing and receives a “cash-in” signal when a player desires to play a game in the gaming system. A stack of unprinted tickets is stored in the interior of the device. A ticket printer prints a coded value, such as a bar code, on a ticket in response to a cash-out signal from the gaming system. A ticket reader reads the amount printed on the ticket. If the printed value corresponds to the value which should have been printed, a ticket-out transport delivers the printed ticket to the player cashing out from the gaming system. When a player inserts the printed ticket into the device a ticket-in transport senses the insertion and the ticket reader reads the coded value from the inserted printed ticket. The ticket reader issues a cash-in signal to the gaming system corresponding to the value read from the coded value on the inserted printed ticket.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: October 29, 2002
    Assignee: Mikohn Gaming Corporation
    Inventor: Michael Saunders
  • Patent number: 6464584
    Abstract: An intelligent casino chip system. At least one gaming table is provided with at least one discrete player area. Two classes of intermingled gaming chips are accepted in the discrete betting area. Each gaming chip of the first class has a first transponder containing at least value information. Each gaming chip of the second class has a second transponder containing value and class information. The computer system determines the values from each class of chip and the class information from the second transponder.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: October 15, 2002
    Assignee: Mikohn Gaming Corporation
    Inventor: Terrance W. Oliver
  • Patent number: 6443658
    Abstract: An improved method and apparatus for trenchless placement of pipe or conduit that allows termination at a vault or manhole structure without destruction of the vault or manhole. The specific improvement is the means of making the bursting ram and all components used in the procedure (but for the replacement pipe) disassemblable in a small space, such as a vault or manhole. The disclosed improvement is a means to keep the bursting ram together during use but then to allow the bursting ram after it enters into the manhole or vault, to be disassembled with hand tools and removed in parts without destruction or damage to the vault structure. This makes the trenchless placement of conduit or piping non-destructive over the distance of the route as well as at the termination at a manhole.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: September 3, 2002
    Inventor: David A. Lincoln
  • Patent number: 6435511
    Abstract: A method of a house apportionment of a bonus value during bonus casino game play, entry for which occurs during play of an underlying game of chance. The method of house apportionment awards the player a portion of the bonus value for the bonus game and adds the remainder of the bonus value to at least one progressive account available to reward subsequent players, such that the bonus value paid by the house is constant and the house advantage is fixed regardless of player proficiency in the bonus casino game. The bonus casino games include knowledge-based playing. The knowledge-based bonus casino game includes a player answering, selecting, or guessing the proper responses to questions. The answering, selecting, or guessing has the step of challenging the player with questions having a common theme or varying difficulty. The knowledge-based playing has the step of asking the player questions the bonus value of which is measured against survey responses.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: August 20, 2002
    Assignee: Mikohn Gaming Corporation
    Inventors: Olaf Vancura, Terrance William Oliver
  • Patent number: 6432466
    Abstract: The frozen dessert products of the present invention preferably comprise a base mixture of, on a percent solids (dry) basis, about 1% to about 12% high fructose corn syrup, about 5% to about 20% corn syrup having a DE of about 36, about 2% to about 22% sucrose, about 2% to about 6% maltodextrin, about 0.2% to about 5% egg white, about 1% to about 9% FRUITRIM® blend (comprising fruit juices and natural grain dextrins), about 0.2% to about 1.5% stabilizer, about 0% to about 0.12% emulsifier, about 0% to about 1.5% modified food starch, about 0% to about 5% milk fat, about 0% to about 10% milk solids non-fat (MSNF) with the balance being water, and on a volume basis, from about 20% to about 90% fruit puree. Flavor ingredients may be added. The method of production for the frozen dessert products comprises the steps of blending the above ingredients to form a base mixture, pasteurizing and homogenizing the base mixture, adding fruit puree to form a final mixture, extruding to a final density of about 4.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: August 13, 2002
    Assignee: Dreyer's Grand Ice Cream, Inc.
    Inventors: Nicole C. Brake, Robert W. Martin, Jr., Scott B. Backinoff
  • Patent number: 6428831
    Abstract: A method steam flaking grain comprises the steps of providing grain, passing the grain through a steam chest at a predetermined temperature and pressure for a predetermined time, flaking the grain between two rotating corrugated rollers having a gap, sampling the flakes at predetermined intervals as the flakes come out from between the rollers, weighing the sampled flakes to determine the density of the sampled flakes, and adjusting the temperature, the pressure, the retention time, and the size of the gap between the rollers on the basis of the measured density of the sampled flakes, so that the resulting flakes have a predetermined density and a predetermined amount of gelatinization and so that the variability in the amount of gelatinization is minimized. In another highly preferred embodiment, the sampled flakes are cooled for a predetermined time and then screened before measuring the density.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: August 6, 2002
    Assignee: Agland Incorporated
    Inventor: Davy Rolland Brown
  • Patent number: 6413160
    Abstract: A method for playing a bonus game requiring knowledge has steps of presenting a query; limiting the time for response; awarding more if the player is correct, less if wrong, and keeping a house advantage in a range. A method has the steps of receiving a wager; playing a base game; playing a time-limited bonus game, and keeping a house advantage in a range. A method has the steps of presenting a query; limiting the time for response; awarding more if correct, less if wrong; randomly choosing a response if the time limit be exceeded, and keeping a house advantage in a range. A method has the steps of presenting a query; limiting the time for response; awarding more if correct, less if wrong or if the time limit is exceeded, and keeping a house advantage in a range. A method has the steps of presenting a query; limiting the time for response; awarding the player who responds correctly inversely to the time elapsed, and keeping a house advantage in a range.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 2, 2002
    Assignee: Mikohn Gaming Corporation
    Inventor: Olaf Vancura
  • Patent number: 6411897
    Abstract: A method of scheduling a vehicle in real-time to transport freight and passengers. A host receives transportation requests (e.g., to deliver freight, transport passengers, reschedule, cancel, etc.) over a network from a freight terminal and/or a passenger terminal. A route is created at the host with destinations based on the received transportation requests. The host predicts an arrival time and a departure time for each destination along the route and generates a route schedule. As the vehicle travels to each destination, the host receives actual arrival and departure times and uses these actual times to update the route schedule. The route schedule is also updated when new destinations are added or a scheduled destination is cancelled. In another embodiment, the predicted arrival and departure times are updated based on vehicle positioning data received from a global positioning system.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: June 25, 2002
    Assignee: IAP Intermodal, LLC
    Inventor: James G. Gaspard, II
  • Patent number: 6405725
    Abstract: An endotracheal tube can be inserted into a patient's trachea during resuscitation by using a face mask and a curved guide. The guide is inserted through a flexible port in the face mask and has a curved distal portion that extends into the patient's mouth and hypopharynx. The patient is initially resuscitated by supplying a flow of air/oxygen through the mask. For example, a resuscitation bag can be connected to a rotatable ventilation port on the face mask. An endotracheal tube is inserted over the distal end of a fiber optic probe. Resuscitation, oxygenation, or artificial ventilation continue without interruption while the fiber optic probe and endotracheal tube are inserted through a flexible port at the proximal end of the curve guide and then advanced along the guide into the patient's airway. The direction of the distal tip of the fiber optic probe can be controlled by the physician.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: June 18, 2002
    Assignee: Evergreen Medical, Inc.
    Inventor: Kent L. Christopher
  • Patent number: D458747
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: June 18, 2002
    Inventors: Paul W. R. Hields, Mark Russell Henault
  • Patent number: D459482
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: June 25, 2002
    Assignee: FarmBoy Online, Inc.
    Inventor: Thomas E. Kettle
  • Patent number: D465891
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: November 19, 2002
    Inventor: Michael Gordon Brown