Patents Represented by Attorney R. Dennis Creehan, Esq.
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Patent number: 7068054Abstract: 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: GrantFiled: February 24, 2003Date of Patent: June 27, 2006Assignee: Worcester Polytechnic InstituteInventors: Loutfallah Georges Chedid, Makhlouf M. Makhlouf, Richard D. Sisson, Jr.
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Patent number: 6982132Abstract: 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: GrantFiled: August 14, 2000Date of Patent: January 3, 2006Assignee: Trustees of Tufts CollegeInventors: Ronald B. Goldner, Te-Yang Liu, Mark A. Goldner, Alexandra Gerouki, Terry E. Haas
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Patent number: 6962245Abstract: 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: GrantFiled: May 22, 2003Date of Patent: November 8, 2005Assignee: Worcester Polytechnic InstituteInventors: Malcolm H. Ray, Chuck A. Plaxico
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Patent number: 6952060Abstract: 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: GrantFiled: May 7, 2001Date of Patent: October 4, 2005Assignee: Trustees of Tufts CollegeInventors: Ronald B. Goldner, Peter Zerigian
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Patent number: 6893716Abstract: 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: GrantFiled: October 7, 2003Date of Patent: May 17, 2005Assignee: Worcester Polytechnic InstituteInventors: William Grant McGimpsey, John C. MacDonald
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Patent number: 6803237Abstract: 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: GrantFiled: January 25, 2001Date of Patent: October 12, 2004Assignee: Woods Hole Oceanographic InstitutionInventors: Steven J. Manganini, Kenneth W. Doherty, Terence R. Hammer, Bruce A. Lancaster