Patents Represented by Attorney R. Dennis Creehan, Esq.
  • Patent number: 7068054
    Abstract: An alloy solute sensor probe, measurement system and measurement method are disclosed for directly measuring solute concentration profiles in conductive material components at elevated processing temperatures. The disclosed device and method permit direct, real-time non-destructive measurement of solute concentration profiles in treated surfaces in alloy components. In disclosed embodiments, a novel concentric carbon sensor and rod-shaped carbon sensor are disclosed which employ AC frequencies for probing the subsurface region of alloy samples to determine carbon concentration profiles at steel surfaces from measurements of alloy resistivity profiles. Results of carbon profile measurements obtained with the disclosed device and method compare favorably with conventional destructive analytical measurements made on post-processed samples.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: June 27, 2006
    Assignee: Worcester Polytechnic Institute
    Inventors: Loutfallah Georges Chedid, Makhlouf M. Makhlouf, Richard D. Sisson, Jr.
  • Patent number: 6982132
    Abstract: A rechargeable, stackable, thin film, solid-state lithium electrochemical cell, thin film lithium battery and method for making the same is disclosed. The cell and battery provide for a variety configurations, voltage and current capacities. An innovative low temperature ion beam assisted deposition method for fabricating thin film, solid-state anodes, cathodes and electrolytes is disclosed wherein a source of energetic ions and evaporants combine to form thin film cell components having preferred crystallinity, structure and orientation. The disclosed batteries are particularly useful as power sources for portable electronic devices and electric vehicle applications where high energy density, high reversible charge capacity, high discharge current and long battery lifetimes are required.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: January 3, 2006
    Assignee: Trustees of Tufts College
    Inventors: Ronald B. Goldner, Te-Yang Liu, Mark A. Goldner, Alexandra Gerouki, Terry E. Haas
  • Patent number: 6962245
    Abstract: Tunable pull-through energy attenuator and decelerator devices is disclosed which provide for variable force-time profiles, deceleration and kinetic energy attenuation of moving objects so as to prevent damage or injury to impacting objects, vehicles or persons. The device employs either consumable inelastic or reusable, viscoelastic deforming elements, such as tubes, rods, plates or strips, which absorb substantial amounts of energy through repeated inelastic or viscoelastic deformation when the deforming element is pulled-through a tunable array of rigid pins having a variety of configurations and settings. The disclosed devices provide for variable force-time profiles which control the cumulative deformation and thereby the amount of energy absorbed and rate of deceleration of impacting objects.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: November 8, 2005
    Assignee: Worcester Polytechnic Institute
    Inventors: Malcolm H. Ray, Chuck A. Plaxico
  • Patent number: 6952060
    Abstract: An electromagnetic linear generator and regenerative electromagnetic shock absorber is disclosed which converts variable frequency, repetitive intermittent linear displacement motion to useful electrical power. The innovative device provides for superposition of radial components of the magnetic flux density from a plurality of adjacent magnets to produce a maximum average radial magnetic flux density within a coil winding array. Due to the vector superposition of the magnetic fields and magnetic flux from a plurality of magnets, a nearly four-fold increase in magnetic flux density is achieved over conventional electromagnetic generator designs with a potential sixteen-fold increase in power generating capacity.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: October 4, 2005
    Assignee: Trustees of Tufts College
    Inventors: Ronald B. Goldner, Peter Zerigian
  • Patent number: 6893716
    Abstract: Self-assembled monolayers and multilayer thin film structures were assembled from multiple components that were linked non-covalently by metal-ligand complexation. Non-covalently assembled multicomponent films assembly my the present method obviate problems associated with the covalent assembly of SAMs and multilayer thin film structures from large molecules. In one preferred embodiment, the disclosed film structures comprise 2,6 pyridinedicarboxylate ligands attached to an alkanethiol, which form a self-assembled monolayer on gold. The SAM is subsequently functionalized by sequential deposition of metal ions and ligands, allowing incorporation of one or more chromophores, photooxiding compounds or photoreducing to form multilayer film structures. Transition metals, lanthanide metals and other metals of varying charge may be employed in complexing with with 2,6 pyridinedicarboxylate ligands to form stable ordered structures.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: May 17, 2005
    Assignee: Worcester Polytechnic Institute
    Inventors: William Grant McGimpsey, John C. MacDonald
  • Patent number: 6803237
    Abstract: A sequential processing reactor vessel and method is disclosed for accelerated extraction and fractionation of chemical analytes from complex solid sample materials. The device and method provide for sequential extraction of elemental constituents from solid materials by sequentially contacting target samples within a single reaction vessel using a series of different reagents at temperatures as high as 150° C. and pressures up to 150 psi to accelerate reactions. The aggressive chemical treatments provided by the disclosed device and method enable the complete digestion of solid samples in liquid analyte samples that can be directly analyzed by conventional spectrometry or other suitable methods. The disclosed device and method provide for efficient sample processing and accelerated reactions to significantly reduce processing times and costs for elemental analysis of solids while improving accuracy, precision and reliability of results compared to conventional devices and methods.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: October 12, 2004
    Assignee: Woods Hole Oceanographic Institution
    Inventors: Steven J. Manganini, Kenneth W. Doherty, Terence R. Hammer, Bruce A. Lancaster