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| Number | Title | Issue Date |
| 8182712 | Methods and apparatus for dyeing material Techniques for dyeing material are disclosed, including providing a magnetorheological fluid containing a coloring agent onto a contacting surface, applying a magnetic field to the magnetorheological fluid to increase viscosity of the magnetorheological fluid, and c... | 05/22/2012 |
| 8062541 | Non-settling glycol based magnetorheological fluids A magnetorheological fluid comprising magnetic-responsive particles, a thickener, an ionic thixotropic additive, and a carrier fluid wherein the carrier fluid comprises a glycol-water mixture comprising at least 50 percent by weight of a glycol compound. The thicken... | 11/22/2011 |
| 8017031 | Biocompatible magnetic nanocrystal, powder of a biocompatible magnetic nanocrystal bearing a surface reactive group and preparations thereof This invention is concerned with biocompatible magnetic nanocrystals highly soluble and dispersible in a physiological buffer, powder of biocompatible magnetic nanocrystals and nanocrystals bearing surface reactive N-hydroxysuccinimide ester moiety, and preparations... | 09/13/2011 |
| 7959822 | Magnetorheological liquid A magnetorheological formulation which comprises at least one base oil, at least one magnetizable particle, a at least one dispersant and a at least one thixotropic agent is described. ... | 06/14/2011 |
| 7897060 | Magnetorheological materials having a high switching factor and use thereof The invention relates to magnetorheological materials comprising at least one non-magnetisable carrier medium and magnetisable particles contained therein, at least two magnetisable particles fractions being contained as particles and these being formed from non-sph... | 03/01/2011 |
| 7883636 | Nanostructured magnetorheological fluids and gels Magnetorheological materials having a supramolecular polymer gel as a component of the carrier are disclosed. Useful supramolecular polymers for gels include those having bipyridine or terpyridine ligands which can participate in metal coordination bonding. The magn... | 02/08/2011 |
| 7731863 | Magnetorheological fluid with a fluorocarbon thickener A magnetorheological fluid formulation comprising magnetizable particles dispersed in carrier fluid and a thixotropic agent wherein the thixotropic agent comprises a fluorocarbon grease. ... | 06/08/2010 |
| 7708901 | Magnetorheological materials having magnetic and non-magnetic inorganic supplements and use thereof The invention relates to magnetorheological materials comprising at least one non-magnetisable carrier medium and magnetisable particles contained therein, in addition a combination of magnetic and non-magnetic inorganic materials and/or composite particles thereof ... | 05/04/2010 |
| 7591960 | Preparation method for oil-based magnetic fluid A preparation method for synthesis of oil-based magnetic fluid is disclosed. One end of a compound with a diamino group or an organic extraction reagent is connected with oil-based material while the other end is connected with surfactant having a carboxyl group tha... | 09/22/2009 |
| 7575695 | Additives package and magnetorheological fluid formulations for extended durability An additives package for use in an MR fluid formulation is provided, as well as an MR fluid formulation containing the additives package. In one embodiment, the additives package comprises an organomolybdenum dithiocarbamate, an ashless dithiocarbamate, and a triazo... | 08/18/2009 |
| 7521002 | Magnetorheological fluid compositions A magnetorheological fluid composition comprising a low aspect ratio magnetizable particle comprising a unimodal particle distribution and an aspect ratio less than 1.5, a high aspect ratio magnetizable particle comprising an aspect ratio greater than 1.5, and a car... | 04/21/2009 |
| 7488431 | Lipiodol-ferrofluid, and a process for preparation thereof The present invention discloses a lipiodol-ferrofluid, and a process for preparation thereof, wherein the lipiodol-ferrofluid includes the ferrofluid including a magnetic component, γ-Fe2O3 or Fe3O4; and the lipiodol.... | 02/10/2009 |
| 7429339 | Magnetic nanomaterials and synthesis method A magnetic nanoparticle (22), a magnetic nanomaterial (30), assembly (30), and a method for synthsising a magnetic nanoparticle, relating to thermodynamically stable and air stable ferromagnetic nanoparticles of adjustable aspect ratio made upon... | 09/30/2008 |
| 7422709 | Electromagnetic rheological (EMR) fluid and method for using the EMR fluid An electromagnetic rheological (“EMR”) fluid (18) broadly includes a conducting medium (22) and a plurality of micronparticles (24) suspended in the medium (22). Each of the micronparticles (24) includes a magnetically permeabl... | 09/09/2008 |
| 7419616 | Magnetorheological fluid compositions A magnetorheological fluid composition comprising a carrier fluid; and a plurality of high aspect ratio magnetizable particles, wherein the aspect ratio of the high aspect ratio magnetizable particles is greater than 1.5. Optionally, the high aspect ratio magnetizab... | 09/02/2008 |
| 7393463 | High temperature magnetorheological fluid compositions and devices A magnetorheological fluid composition comprising magnetizable particles in a liquid metal carrier fluid, wherein the liquid metal carrier fluid comprises a metal, a metal alloy, or a solder composition having a melting point from about −40° C. to about 300° C.,... | 07/01/2008 |
| 7387744 | Method of making magnetic fluid The present approach pertains to colloidal chemistry and methods of manufacturing magnetic fluid such as ferrofluid. In particular, the present approach is directed to methods of manufacturing magnetic fluid that is resistant to aggregation and clumping, and is more... | 06/17/2008 |
| 7354528 | Magnetorheological fluid compositions A magnetorheological fluid composition comprising a low aspect ratio magnetizable particle comprising a unimodal particle distribution and an aspect ratio less than 1.5, a high aspect ratio magnetizable particle comprising an aspect ratio greater than 1.5, and a car... | 04/08/2008 |
| 7340904 | Method and apparatus for removing heat A device includes a liquid metal and a ferrofluid contained in a closed tube. Many electrode groups are connected to the closed tube. A feedback device is connected to the electrode groups. The feedback device switches power to each electrode group in series to circ... | 03/11/2008 |
| 7335233 | Magnetorheological fluid compositions and prosthetic knees utilizing same The present invention relates in one embodiment to magnetorheological fluids utilized in prosthetic joints in general and, in particular, to magnetorheological fluids utilized in controllable braking systems for prosthetic knee joints. Preferred magnetorheological f... | 02/26/2008 |
| 7333783 | Mobile device with manually operated power source A mobile device with a manually operated power source which generates power sufficient to operate the device when shaken by a user. A cable connected between the power source and mobile device carries the generated power from the power source to the mobile device su... | 02/19/2008 |
| 7331388 | Horizontal single trip system with rotating jetting tool A method for completing a well in a single trip is described, which includes inserting a completion tool assembly into the wellbore. The completion tool assembly includes a gravel packing assembly having a central channel substantially therethrough and a service too... | 02/19/2008 |
| 7322187 | Metallurgical powder compositions and articles and methods utilizing the same The metallurgical powder composition suspensions of the present invention include a magnetic powder having an outer oxide layer suspended in a carrier fluid. Magnetic powders include iron-based powders, such as for example, powders of iron pre-alloyed with other ele... | 01/29/2008 |
| 7308738 | Releasable fastener systems and processes A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements e... | 12/18/2007 |
| 7297290 | Nanostructured magnetorheological fluids and gels Magnetorheological materials having a supramolecular polymer gel as a component of the carrier are disclosed. Useful supramolecular polymers for gels include those having terpyridine ligands which can participate in metal coordination bonding. The magnetizable parti... | 11/20/2007 |
| 7291287 | Method of making magnetic fluid The present approach pertains to colloidal chemistry and methods of manufacturing magnetic fluid such as ferrofluid. In particular, the present approach is directed to methods of manufacturing magnetic fluid that is resistant to aggregation and clumping, and is more... | 11/06/2007 |
| 7288860 | Magnetic transducer with ferrofluid end bearings An electrical generator includes one or more magnets that move relative to one or more conductors to generate an electrical signal in each conductor. Each magnet has ferrofluid bearings in the vicinity of its opposite ends to provide a low friction interface between... | 10/30/2007 |
| 7279009 | Speed-adaptive and patient-adaptive prosthetic knee The invention relates to an automated speed-adaptive and patient-adaptive control scheme and system for a knee prosthesis. The control scheme and system utilizes sensory information measured local to the prosthesis to automatically adjust stance and swing phase knee... | 10/09/2007 |
| 7261176 | Articulated vehicle suspension system shoulder joint An articulated vehicle suspension system shoulder joint is disclosed. A vehicle includes a plurality of wheel assemblies; a plurality of rotating shoulder joints, each wheel assembly being mounted to a respective one of the shoulder joints and rotatable in a plane b... | 08/28/2007 |
| 7252740 | (per) fluoropolyether carboxylic acids and use thereof for the oleo-repellent paper sizing Carboxylic acids comprising perfluoropolyether chains, of formula: T1—CFW1—O—Rf—CFW2—T2 (I) wherein T1, T2, equal to or different from each other, are sel... | 08/07/2007 |
| 7225905 | Magnetorheological fluid damper A magnetorheological damper device is provided having an increased shear interface area per unit volume of device, which enhances the stroking force of the damper. The damper generally includes a thrust shaft comprising an external threaded surface in threaded commu... | 06/05/2007 |
| 7217372 | Magnetorheological composition The invention provides a magnetorheological device employing narrow design gap and containing a magnetic-responsive composition exhibiting reduced off-state forces and good performance. Specifically, this invention is directed to a magnetorheological device of defin... | 05/15/2007 |
| 7208134 | Bioprocesses enhanced by magnetic nanoparticles One aspect of the present invention relates to magnetic nanoparticles colloidally stabilized in aqueous milieu by association with an organic phase. The organic phase may be either a fluorinated polymer or an organic hydrocarbon bilayer, wherein the two layers are c... | 04/24/2007 |
| 7200956 | Magnetic fluid cushioning device for a footwear or shoe A cushioning device for a footwear or shoe includes a chamber with a magnetically responsive fluid therein for absorbing and/or dampening vibrations and/or shocks. A magnetic member, such as an electromagnet, is provided for applying a magnetic field to the magnetic... | 04/10/2007 |
| 7198071 | Systems and methods of loading fluid in a prosthetic knee The invention in some embodiments relates to systems and methods of loading fluid in a prosthetic knee. A vacuum fill technique is utilized in one embodiment to load magnetorheological fluid within small gaps in a chamber of a prosthetic knee. Advantageously, this a... | 04/03/2007 |
| 7195721 | Quantum lilypads and amplifiers and methods of use A nanocomposite having enhanced energy conversion between thermal, electron, phonons, and photons energy states. The composition comprises a synergistic blend of nanoscale powders wherein the powders have nanoscale layered surface modifiers and a conductive medium. ... | 03/27/2007 |
| 7189657 | Semiconductor substrate surface protection method A convenient method of depositing chemical protection material on the surface of a semiconductor substrate whereby deposition of contaminating substances after a clean surface has been obtained can be prevented and maintaining of this surface performed includes a pr... | 03/13/2007 |
| 7169208 | Method and composition for dispersing extra-fine nickel powder A composition for use with alloys including extra-fine nickel powder dispersed with a hydrophobic inorganic dispersant which is preferably high-purity silica treated with hexamethyldisilazane (fumed silica). The composition breaks and prevents the agglomeration of t... | 01/30/2007 |
| 7163248 | Automotive console with adjustable armrest A center console for an automobile includes an armrest that is selectively adjustable by vehicle occupants to and between a first position wherein the armrest is in a substantially horizontal orientation, and a second position wherein the armrest extends angularly a... | 01/16/2007 |
| 7148583 | Electrical power generators The present invention provides methods to convert motion into electrical energy. These electrical power generators are made compatible with standard batteries so that they can support operations of existing battery powered portable appliances with no or minimal modi... | 12/12/2006 |
