Patents Represented by Law Firm Sheridan, Ross & McIntosh
  • Patent number: 5880319
    Abstract: Discussed is a process for preventing clathrate hydrate masses from detrimentally impeding the possible flow of a fluid susceptible to clathrate hydrate formation. The process is particularly useful in the natural gas and petroleum production, transportation and processing industry where gas hydrate formation can cause serious problems. Additives preferably contain one or more five member, six member and/or seven member cyclic chemical groupings. Additives include polymers having lactam rings. Additives can also contain polyelectrolytes that are believed to improve conformance of polymer additives through steric hinderance and/or charge repulsion. Additional additives include alkoxy compounds, and particularly those comprising ethoxy and or propoxy polymer blocks. Further additives include alcohols and oxazoline polymers which are preferably used in combination with polymers having lactam rings. Additives are useful in controlling clathrate hydrates in highly saline aqueous liquids.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: March 9, 1999
    Assignee: Colorado School of Mines
    Inventor: Earle Dendy Sloan, Jr.
  • Patent number: 5781616
    Abstract: A system and method for facilitating communication between a calling party and a first person via a first termination telephone number formerly associated with the first person is disclosed. In one embodiment, the method of the present invention includes the steps of receiving an incoming call from a calling party, the incoming call initiated via at least a service code, and receiving a first input from the calling party, the first input corresponding to the first termination telephone number formerly associated with the first person, processing the first input to retrieve a second termination telephone number presently associated with the first person, and routing the incoming call to the first person via the second termination telephone number.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: July 14, 1998
    Inventors: Edward A. Youngs, Monica A. Marics
  • Patent number: 5748239
    Abstract: A stored image capture system intended to provide an image capturing device for use by the general public at sites having objects of interest. The stored image capture system is designed to accept a user's image recording medium and allow the user to capture on the user's image recording medium a stored image of an object of interest. The system generally includes a compartment for receiving an image recording medium, a memory device to store an image, a display device to display the stored image for viewing by the user, a projection device to project the stored image onto the image recording medium, and a control mechanism to control the operation of the memory device, the display device and the projection device.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: May 5, 1998
    Assignee: Eastman Kodak Company
    Inventor: Kevin John Klees
  • Patent number: 5658240
    Abstract: A blood component collection system with optimization capabilities. In one embodiment, the blood component collection system includes a central input station (e.g., computer) and a plurality of blood component collection assemblies. These blood component collection assemblies include a blood component collection device and an operator interface module (e.g., computer). Various types of data are maintained on the collection procedures performed in the blood component collection system and are utilized to generate various types of reports for optimizing system operations.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: August 19, 1997
    Assignee: Cobe Laboratories, Inc.
    Inventors: Steven Gage Urdahl, Timothy Michael Gordon, Thomas James Minyard, Emery Joseph Stephans
  • Patent number: 5646115
    Abstract: The present invention is directed to a novel product and method for isolating ectoparasite saliva proteins, and a novel product and method for detecting and/or treating allergic dermatitis in an animal. The present invention includes a saliva protein collection apparatus capable of collecting ectoparasite saliva proteins substantially free of contaminating material. The present invention also relates to ectoparasite saliva proteins, nucleic acid molecules having sequences that encode such proteins, and antibodies raised against such proteins. The present invention also includes methods to obtain such proteins and to use such proteins to identify animals susceptible to or having allergic dermatitis. The present invention also includes therapeutic compositions comprising such proteins and their use to treat animals susceptible to or having allergic dermatitis.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: July 8, 1997
    Assignee: Heska Corporation
    Inventors: Glenn R. Frank, Shirley Wu Hunter, Lynda Wallenfels
  • Patent number: 5631229
    Abstract: Certain toxic compounds (T) such as, for example, compounds based upon diphtheria toxin, ricin toxin, pseudomonas exotoxin, .alpha.-amanitin, pokeweed antiviral protein (PAP), ribosome inhibiting proteins, especially the ribosome inhibiting proteins of barley, wheat, corn, rye, gelonin and abrin, as well as certain cytotoxic chemicals such as, for example, melphalan and daunomycin can be conjugated to certain analogs of gonadotropin-releasing hormone to form a class of compounds which, when injected into an animal, destroy the gonadotrophs of the animal's anterior pituitary gland. Hence such compounds may be used to sterilize such animals and/or to treat certain sex hormone related diseases.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: May 20, 1997
    Assignee: Colorado State University Research Foundation
    Inventors: Torrance M. Nett, Leonard M. Glode
  • Patent number: 5615121
    Abstract: A scheduling system is disclosed for scheduling tasks for fulfilling a series of service requests. When each service request is received, a determination is made as to the amount of resources a task requires to provide the requested service. Further, a preferred time within which to perform the task is obtained from the requestor of the service request. For each service request, data for the estimated amount of resources and the preferred time are supplied, on a first-come-first-serve basis, to a scheduling component for solving a combinatorial optimization model which efficiently allocates a predetermined amount of resources for each time slot in a scheduling period by rearranging tasks for service requests previously received. The scheduling component provides for a service requestor, without regard to subsequently received service requests, a service time in which to perform the task for the requested service substantially immediately after the service request is made.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: March 25, 1997
    Assignee: U S West Technologies, Inc.
    Inventors: Djangir A. Babayev, Richard M. Berger, Vincil C. Dean, Ronald L. Hansen, Scott H. Parrish
  • Patent number: 5615408
    Abstract: The present invention provides an apparatus for credit based management of a telecommunication system. One embodiment of the apparatus includes an interface for communicating credit information on a particular subscriber and for receiving call records for the particular subscriber that are derived from a switch which establishes connections between telecommunication devices. A credit limit device then utilizes the credit information to establish a credit limit for the subscriber. The apparatus also includes a device for comparing the particular subscriber's call usage to a credit limit established for the subscriber based on information obtained from the credit bureau. An output device is used to provide an indication that the subscriber has exceeded their credit limit. Another embodiment of the apparatus, includes a device for, upon expiration of a predetermined time period, contacting the credit bureau to obtain a new credit score for a subscriber and use this score to update the subscriber's credit limit.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: March 25, 1997
    Assignee: Coral Systems, Inc.
    Inventors: Eric A. Johnson, Mark J. Handzel
  • Patent number: 5606870
    Abstract: A low-temperature refrigeration system (10) is disclosed for accurately maintaining an instrument (11) with a time varying heat output at a substantially constant predetermined cryogenic temperature. The refrigeration system (10) controls the temperature of the instrument (11) by accurately adjusting the pressure of coolant at a heat exchanger interface (12) associated with the instrument (11). The pressure and flow of coolant is adjusted through the use of one or two circulation loops and/or a non-mechanical flow regulator (24) including a heater (32). The refrigeration system further provides a thermal capacitor (16) which allows for variation of the cooling output of the system (10) relative to a cooling output provided by a cooling source (14).
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: March 4, 1997
    Assignee: Redstone Engineering
    Inventor: James M. Lester
  • Patent number: 5603462
    Abstract: A sewing machine is provided for splicing together two different threads. The machine includes a thread tree with a number of thread spools with each thread thereof being inserted through flexible plastic tubing. A movable carriage assembly locates the new thread to be spliced relative to a splicing device passageway that receives the new thread to be spliced along with the old thread. The splicing device includes a front air inlet for drawing the new thread into the passageway of the splicing device and a rear air inlet for creating air turbulence during the splicing operation. Also used in moving the new thread through the passageway is an insertion drive roller connected to a pivotal rocker. A thread clamp cover connected to the rocker cooperates with the trimmer blades to trim the old thread. A thread clamp and a thread clamp magnet cooperate to hold the old thread in a desired position during the insertion of the new thread into the splicing device.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: February 18, 1997
    Assignee: Melco Industries, Inc.
    Inventors: Daniel J. Conrad, Luther Stoddard, Michael G. Weir, Samuel Padgett, Dean Pearson, Karl Kott, Kurt L. Bolldorf
  • Patent number: 5602361
    Abstract: A hybrid inflator for an automotive inflatable safety system and method for assembling the same. In one embodiment, a mixture of an inert gas (e.g., argon) and oxygen are contained within the inflator housing and a gun type propellant is used in the gas generator to supply the propellant gases.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: February 11, 1997
    Assignee: Oea, Inc.
    Inventors: Brian K. Hamilton, James L. Baglini
  • Patent number: 5598528
    Abstract: A determination is made as to whether or not storage devices of a storage array are positioned in their proper physical locations in the array. To make the determination, a device identifier for each of the storage devices is utilized, together with a generated logical identifier. In a preferred embodiment, the device identifier is the serial number for the storage device and the logical identifier includes a combination of all the device identifiers for a particular logical volume of the storage array. Preferably, the logical identifier also includes system status information for use in enhancing fault tolerance. The logical identifier is written or updated upon the occurrence of predetermined events or conditions. Using the device identifiers and the logical identifier, an indication can be provided whenever the proper storage devices are not found in the logical volume whereby corrective action can be taken to avoid improper distribution to or reassembly of data from the logical volume.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: January 28, 1997
    Assignee: Fujitsu Limited
    Inventors: David Larson, Robert E. Stubbs, Gene Edstrom
  • Patent number: 5597529
    Abstract: A method for assembling a structure using a filler alloy which includes aluminum and scandium. The method generally includes selecting parts for the structure which are formed from aluminum and/or an aluminum alloy and welding the same together with the aluminum-scandium filler alloy. Similar to the filler alloy, the parts may also include scandium. In one embodiment, the filler alloy and/or the parts further include zirconium. A method for assembling a bicycle frame is also provided. The method includes the steps of forming a first tube, at least a portion of which comprises scandium, forming a second tube, at least a portion of which comprises scandium, and joining the first and second tubes together. A number of aluminum-based alloys are also disclosed which possess enhanced properties. The alloys include scandium in combination with other alloying elements such as, for example, zirconium, copper, magnesium and silicon.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: January 28, 1997
    Assignee: Ashurst Technology Corporation (Ireland Limited)
    Inventor: William T. Tack
  • Patent number: 5596736
    Abstract: A destaging method for a mapped data storage system is provided for writing data to a backing store. Data having non-sequential logical addresses are grouped together. The data includes data segments. A maximal difference in size between two data segments is less than a predetermined value. A constructed data segment includes a particular data item when the particular data item has a logical address between logical addresses of two other data items when they are part of this same constructed data segment. After being grouped together, such data is destaged from a cache memory to the backing store. Data from a group is transferred to an unallocated storage area of the backing store nearest to the physical position of the data transfer head responsible for the transfer. Each such transfer is continuous while reducing seek and/or latency delays and without regard to the nonsequential logical addresses of the data being transferred.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: January 21, 1997
    Assignee: Fujitsu Limited
    Inventor: Randy G. Kerns
  • Patent number: 5589845
    Abstract: The disclosure relates to ferroelectric and superconducting thin films used in combination to produce low-loss passive microwave and millimeter wave devices which are frequency tuneable. Various metal oxide superconducting and ferroelectric thin films can be deposited in numerous multilayer geometries via a variety of deposition techniques to produce devices which can manipulate microwave and millimeter wave signals through the application of voltage bias signals across the ferroelectric films. Numerous superconducting microwave and millimeter wave devices, including delay lines, phase shifters, resonators, oscillators, filters, electrically-small antennas, half-loop antennas, directional couplers, patch antennas, and various radiative gratings, are made frequency-tuneable by utilizing voltage-tuneable capacitor structures fabricated from voltage-biased ferroelectric thin films.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 31, 1996
    Assignee: Superconducting Core Technologies, Inc.
    Inventors: Robert M. Yandrofski, John C. Price, Frank Barnes, Allen M. Hermann, James F. Scott
  • Patent number: 5589690
    Abstract: The present invention uses a high energy x-ray, neutron, or gamma source for monitoring the interface between a molten and solidified crystalline phase while in a furnace in a casting process. The radiation can also be used to determine the quality and orientation of the crystals in the crystalline phase. The invention uses the distinctive diffraction patterns produced by crystalline and amorphous phases to locate the interface.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: December 31, 1996
    Assignee: National Institute of Standards and Technology
    Inventors: Thomas A. Siewert, William P. Dube, Dale W. Fitting
  • Patent number: 5588030
    Abstract: In the system of the present invention, the system includes a pre-synchronizer to eliminate the need for examining every possible substring preceding the EOP (end of preamble) mark in order to detect the EOP. For the case where autocorrelation techniques are used to provide error synchronization error tolerance, this results in a much shorter EOP, since it is possible to find shorter EOPs which do not falsely synchronize prior to the arrival of the true EOP. In particular, the preamble is utilized to perform pre-synchronization. Once pre-synchronization has been achieved, the search for the EOP can be focused on a subset of all possible substrings as opposed to prior techniques which looked at all possible substrings. The resultant system solves the problem with less logic and more error tolerance.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: December 24, 1996
    Assignee: Maxtor Corporation
    Inventors: C. M. Riggle, Marvin DeForest
  • Patent number: 5588011
    Abstract: A finite impulse response (FIR) filter and a Viterbi detector system for a magnetic read channel are disclosed. The FIR equalizer generates equalized sampled outputs to the Viterbi detector system. The Viterbi detector system determines the most probable value of all references, R.sub.i by accumulating a summation of data sample values, D.sub.t, for selected legal bit sequences over a significant amount of random data. The summation and count of data samples are output to a system microprocessor for calculation of an average reference for each path of the Viterbi system. The Viterbi detector system also calculates, in real time, magnitude of differences between the output data received from the FIR equalizer and transition references for each data sample to generate transition metrics, adds transition metrics to state metrics from the source node of two paths, and compares the result. The lesser of the two results yields the most likely correct state metric.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: December 24, 1996
    Assignee: C. M. Riggle
    Inventor: C. M. Riggle
  • Patent number: 5585254
    Abstract: The present invention relates to novel recombinant autonomous parvovirus vectors, novel recombinant virus particles, and novel gene delivery vehicles that can be used to selectively target heterologous nucleic acid sequences to desired cell types and to selectively express such sequences in such desired cell types. Recombinant autonomous parvovirus gene delivery vehicles are particularly advantageous for transient gene therapy, and are especially well-suited to treat diseases in which there is rapid cell growth, such as cancer. Also included is the use of recombinant vectors of the present invention to produce RNA and protein products in cell culture.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: December 17, 1996
    Assignee: University of Colorado Foundation, Inc.
    Inventors: Ian H. Maxwell, Jonathan Carlson, Joseph A. Corsini, Fran.cedilla.oise Maxwell, Solon L. Rhode
  • Patent number: 5583019
    Abstract: The present invention relates to a process for producing arachidonic acid. In one embodiment, Mortierella sect. schmuckeri microorganisms are cultured in fermentation medium, preferably containing a component of a complex nitrogen source. Further disclosed is a food product which includes Mortierella sect. schmuckeri microorganisms or lipid isolated from such microorganisms to enhance the arachidonic acid content of the food product.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: December 10, 1996
    Assignee: OmegaTech Inc.
    Inventor: William R. Barclay