Patents Represented by Attorney Herrell & Skillman, P.C.

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  • Method and apparatus for concentrating and/or positioning particles or cells
    Patent number: 6673225
    Abstract: A method for concentrating and/or positioning and/or separating particles or cells comprises placing a liquid medium containing the particles and/or cells over a surface having an electrode array associated with the surface, applying an alternating voltage to the electrode array to create an electric field above the surface within the medium to repel the particles or cells from the electrode array and thereby levitate the particles or cells above the surface, within the medium, by negative dielectrophoresis, and heating the liquid medium so as to cause convection currents to circulate within the medium which concentrate or relocate the levitated cells within the medium. Apparatus for concentrating and/or positioning and/or separating particles or cells are also disclosed.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: January 6, 2004
    Assignee: Industrial Research Limited
    Inventor: William Michael Arnold
  • Surge protector for high speed data networks
    Patent number: 6671154
    Abstract: A surge protector for highspeed data networks is provided wherein a circuit board having a ground plane formed on one side of the circuit board, has respective pairs of conductive traces forming impedancematched transmission lines on the other side of the circuit board. Surge protection devices are connected in series with the conductors and with the ground plane. A compensating reactance may be provided along the transmission lines to correct for parasitic capacitance introduced by the threshold voltage conductor devices. Shielded and isolated connectors may be provided at either end of the circuit board to minimize insertion loss and provide isolation between respective transmission lines.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: December 30, 2003
    Assignee: Lanetics, Inc.
    Inventors: John J DeAndrea, Carmen Lanzetta
  • Electronic circuit construction, as for a wireless RF tag
    Patent number: 6665193
    Abstract: An electronic circuit arrangement comprises a substrate having an electrical conductor thereon, wherein the electrical conductor includes two contacts spaced apart substantially a predetermined distance; an electronic jumper having two contacts spaced apart substantially the predetermined distance and respectively connected to the two contacts of the substrate; and an electronic device on the electronic circuit jumper and having two contacts respectively connected to the two contacts of the electronic circuit jumper.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: December 16, 2003
    Assignee: Amerasia International Technology, Inc.
    Inventors: Kevin Kwong-Tai Chung, William Lewis Sked
  • Ceramic components for high pressure oil wells
    Patent number: 6662869
    Abstract: A pressure reducing assembly for high pressure oil wells is disclosed. The assembly includes a metallic body having inlet and outlet channels that are lined with ceramic inserts. The assembly may also include a removable pressure reducing device that is preferably formed of a ceramic material. Pipe spool pieces associated with the pressure reducing assembly transition the narrow interior flow diameter of the assembly to the larger interior flow diameter of downstream oil process piping. The spool pieces have metallic bodies, with flow channels that are lined with ceramic inserts. The ceramic inserts are disposed within the metallic spool, and are preferably designed with a flow channel taper that gradually increase the interior flow diameter from that of the outlet channel of the pressure reducing assembly to that of the process piping.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: December 16, 2003
    Assignee: Carpenter Advanced Ceramics Inc.
    Inventors: Ibrahim M. Mentesh, Carl R. Baenziger
  • Method for analyzing nucleic acids by means of a substrate having a microchannel structure containing immobilized nucleic acid probes
    Patent number: 6660480
    Abstract: A method and apparatus for analyzing nucleic acids includes immobilizing nucleic probes at specific sites within a microchannel structure and moving target nucleic acids into proximity to the probes in order to allow hybridization and fluorescence detection of specific target sequences.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: December 9, 2003
    Assignee: UT-Battelle, LLC
    Inventors: J. Michael Ramsey, Robert S. Foote
  • Magnetic separation apparatus and methods
    Patent number: 6660159
    Abstract: Apparatuses and methods for separating, immobilizing, and quantifying biological substances from within a fluid medium. Biological substances are observed by employing a vessel having a chamber therein, the vessel comprising a transparent collection wall. A high internal gradient magnetic capture structure may be on the transparent collection wall, magnets create an externally-applied force for transporting magnetically responsive material toward the transparent collection wall. The magnetic capture structure comprises a plurality of ferromagnetic members and has a uniform or non-nonuniform spacing between adjacent members. There may be electrical conductor means supported on the transparent collection wall for enabling electrical manipulation of the biological substances. The chamber has one compartment or a plurality of compartments with differing heights. The chamber may include a porous wall.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: December 9, 2003
    Assignee: Immunivest Corporation
    Inventors: Leon W. M. M. Terstappen, Gerald Dolan
  • Diamond transmission dynode and photomultiplier or imaging device using same
    Patent number: 6657385
    Abstract: A diamond transmission dynode and photocathode are described which include a thin layer of a crystalline semiconductive material. The semiconductive material is preferably textured with a (100) orientation. Metallic electrodes are formed on the input and output surfaces of the semiconductive material so that a bias potential can be applied to enhance electron transport through the semiconductive material. An imaging device and a photomultiplier utilizing the aforesaid transmission dynode and/or photocathode are also described.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: December 2, 2003
    Assignee: Burle Technologies, Inc.
    Inventors: Charles M. Tomasetti, Robert Caracciolo, Charles B. Beetz, David R. Winn
  • Inertia locking system and collapsible seat with the locking system
    Patent number: 6655724
    Abstract: An inertia locking system for a vehicle seat is disclosed. The seat has a C-shaped leg portion. The inertia locking system includes a pedestal mounted on the vehicle floor. The pedestal has an oblique, upwardly facing U-shaped receiving port for receiving the leg portion. A U-shaped clip having a second opening is provided for also receiving the leg portion. The second opening faces obliquely upward and has a width slightly narrower than the diameter of the lower section of the leg portion. A latch having an inverted J-shape has a lower base portion, a curved upper portion, and a jaw portion. The latch is pivotally supported at the lower base portion to a side portion of the pedestal and spring biased away from the receiving port. The curved upper portion faces the receiving port and the jaw portion protrudes beyond an inner surface of the receiving port.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: December 2, 2003
    Assignee: TS Tech Co., Ltd.
    Inventors: Yoshihiko Yoshino, Yoshinobu Kaneko
  • Tracking method and system, as for an exhibition
    Patent number: 6657543
    Abstract: A system and method are useful for conducting an exhibition at which visitors visit a plurality of booths or stations. A smart tag issued each visitor includes at least an electronic memory from which information from the memory may be provided and/or information may be received and stored in the memory. Stored information may include visitor information, exhibitor information, visit information, product/service information and data items. Smart tag control units and antenna arrays at the stations communicate with the smart tags and communicate directly or indirectly with one or more processors that process the information.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: December 2, 2003
    Assignee: Amerasia International Technology, Inc.
    Inventor: Kevin Kwong-Tai Chung
  • Battery charger structure and rechargeable flashlight system using the same
    Patent number: 6652115
    Abstract: A flashlight battery charger has upper and lower receptacles for holding respective ends of a battery assembly therein securing against lateral forces. The battery charger structure is configured to be combined with a flashlight charger assembly and to form a common back plate therewith for securing mounting the combined assembly.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: November 25, 2003
    Assignee: Streamlight, Inc.
    Inventor: Raymond L. Sharrah
  • Self-centering steering module
    Patent number: 6641085
    Abstract: An apparatus for steering a nosewheel on an aircraft, or the like, while the aircraft is on the ground. The apparatus includes a steering shaft that engages a cluster of gears and transfers torque from a steering command to the gears. The steering shaft is rotatable from a centered position in response to steering torque. A centering mechanism imparts a counter-torque on the cluster of gears to restore the steering shaft to the centered position when steering torque is released. The gear cluster comprises two drive gears that accurately guide the steering shaft to the centered position under the influence of the centering mechanism. The gear cluster is configured to minimize and compensate for gear wear, permitting accurate and consistent centering of the main shaft each time a steering torque is released.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: November 4, 2003
    Assignee: Triumph Brands, Inc.
    Inventors: James F Delea, Larry R London, Harry W Hartman
  • Optical waveguide switch having stepped waveguide holding member
    Patent number: 6633691
    Abstract: A first waveguide holding member has a principal surface which confronts the principal surface of a second waveguide holding member. Each principal surface has a stepped configuration defined by an upper surface region, a lower surface region and a transverse region which separates the upper and lower surface regions. At least guide member guides the first and second waveguide holding members to operatively couple and decouple opposing ends of first and second optical waveguides which terminate at the transverse regions of the first and second waveguide holding members, respectively.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: October 14, 2003
    Assignee: Shipley Company, L.L.C.
    Inventors: Dan A. Steinberg, David W. Sherrer
  • Rechargeable flashlight and battery charger
    Patent number: 6633152
    Abstract: A rechargeable flashlight and charging assembly are provided in which the charger has a receptacle for vertically receiving a flashlight therein. The charger further has a second receptacle for holding an auxiliary battery, and a latch for securely holding the auxiliary battery in the second receptacle. The flashlight is formed to removably contain a battery assembly. A pivotal cover member of the flashlight provides access to the battery compartment and has a pair of conductors situated therein for connection to charging contacts within the charging receptacle.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: October 14, 2003
    Assignee: Streamlight, Inc.
    Inventors: Raymond L. Sharrah, John C. DiNenna
  • Ultra-high-strength precipitation-hardenable stainless steel and strip made therefrom
    Patent number: 6630103
    Abstract: A precipitation hardenable stainless steel having the following weight percent composition is disclosed. C 0.030 max. Mn  0.5 max. Si  0.5 max. P 0.040 max. S 0.025 max. Cr  9-13 Ni 7-9 Mo 3-6 Cu  0.75 max. Co  5-11 Ti  1.0 max. Al 1.0-1.5 Nb  1.0 max. B 0.010 max. N 0.030 max. O 0.020 max. The balance of the alloy is essentially iron and the usual impurities. One or more rare earth metals or calcium may be included in the alloy for removing and/or stabilizing phosphorus and sulfur. The alloy provides a unique combination of strength, toughness, and ductility. In accordance with another aspect of the present invention, there is described a useful article such as an aircraft structural component or a golf club head that is formed, at least in part, from the aforesaid alloy.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: October 7, 2003
    Assignee: CRS Holding, Inc.
    Inventors: James W. Martin, Theodore Kosa
  • Plastid promoters for transgene expression in the plastids of higher plants
    Patent number: 6624296
    Abstract: The present invention provides promoter elements useful for stably transforming the plastids of higher plants. The constructs described herein contain unique promoters that are transcribed by both nuclear encoded plastid RNA polymerases, plastid encoded plastid RNA polymerases or both. Use of the novel constructs of the invention facilitates transformation of a wider range of plant species and enables ubiquitous expression of a transforming DNA in plastids of multicellular plants.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: September 23, 2003
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Pal Maliga, Daniel Silhavy, Priya Sriraman
  • Child's push toy
    Patent number: D479861
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: September 23, 2003
    Inventor: Peter Vorkapic
  • Set of security bags
    Patent number: D479909
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: September 30, 2003
    Inventor: Richard L Staples
  • Barbeque pit
    Patent number: D480258
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: October 7, 2003
    Inventor: Charles R. Gordon
  • Weeder
    Patent number: D480281
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: October 7, 2003
    Assignee: Ota Kosan Corporation
    Inventor: Kinjiro Ota
  • Light
    Patent number: D481816
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: November 4, 2003
    Assignee: Streamlight, Incorporated
    Inventors: Raymond L Sharrah, Robert A. Kline, Charles W. Craft