Patents by Inventor Teresa L. Forehand
Teresa L. Forehand has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8828263Abstract: A magnetorheological fluid comprising a mixture of soft and hard iron particles, an organic based carrier fluid, and optional additives such as anti-friction, anti-wear, or surfactants unexpectedly have improved durability when used in devices for control vibration and/or noise, for example, shock absorbers, elastomeric mounts, dampers, and the like.Type: GrantFiled: May 28, 2010Date of Patent: September 9, 2014Assignee: LORD CorporationInventors: Teresa L. Forehand, Daniel E. Barber
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Publication number: 20120074348Abstract: A magnetorheological fluid comprising a mixture of soft and hard iron particles, an organic based carrier fluid, and optional additives such as anti-friction, anti-wear, or surfactants unexpectedly have improved durability when used in devices for control vibration and/or noise, for example, shock absorbers, elastomeric mounts, dampers, and the like.Type: ApplicationFiled: May 28, 2010Publication date: March 29, 2012Inventors: Teresa L. Forehand, Daniel E. Barber
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Patent number: 7217372Abstract: 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 defined gap, and employing a magnetic-responsive composition characterized by comprising non-sperical magnetic-responsive particles of average number diameter distribution (d50) from 6 to 100 microns and at least one friction-reducing additive that reduces the interparticle friction between the magnetic-responsive particles.Type: GrantFiled: November 1, 2002Date of Patent: May 15, 2007Assignee: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand
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Patent number: 7087184Abstract: What is disclosed is a magnetorheological fluid useful for incorporating within the working gap of magnetorheologically controllable linear or rotary devices. The MR fluid includes a carrier fluid component and a magnetic responsive particle component characterized by D10 of 2 ?m up to and including a D10 of 5 ?m, a D50 of 8 ?m up to and including D50 of 15 ?m; a D90 of 25 ?m to and including a D90 of 40 ?m; and further characterized by least squares regression (R2) particles size against log normal cumulative volume percent of greater than or equal to 0.77. Optional preferred additives included therewith include thixotropic agent or viscosity modifier, dispersant or surfactant, antioxidant, corrosion inhibitor, and one or more lubricants.Type: GrantFiled: November 6, 2002Date of Patent: August 8, 2006Assignee: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand
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Patent number: 7070707Abstract: The invention provides a magnetorheological composition having reduced off-state forces and good performance. Specifically, this invention is directed to a magnetorheological composition that may comprise non-sperical magnetic-responsive particles and at least one friction-reducing additive that reduces the interparticle friction between the magnetic-responsive particles.Type: GrantFiled: May 23, 2002Date of Patent: July 4, 2006Assignee: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand
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Patent number: 6886819Abstract: Magnetorheological devices, including damping devices, rotary devices, and haptic systems constructed with said devices are disclosed. The devices contain dry magnetically-responsive particles, or MR fluids containing the magnetically responsive particles. The magnetically soft particles characterized by a single process yield population of atomized particles having a cumulative 10%, 50% and 90% by volume, fraction within specified size, i.e., D10 of from 2 up to and including a D10 of 5 ?m, a D50 8 ?m up to and including a D50 of 15 ?m, a D90 of 25 ?m up to and including a D90 of 40 ?m, and characterized by a least squares regression of log normal particles size against cumulative volume % fraction of greater than or equal to 0.77.Type: GrantFiled: November 6, 2002Date of Patent: May 3, 2005Assignee: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand
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Publication number: 20040140447Abstract: The invention provides a magnetorheological composition having reduced off-state forces and good performance. Specifically, this invention is directed to a magnetorheological composition that may comprise non-sperical magnetic-responsive particles and at least one friction-reducing additive that reduces the interparticle friction between the magnetic-responsive particles.Type: ApplicationFiled: May 23, 2002Publication date: July 22, 2004Inventors: K. Andrew Kintz, Teresa L. Forehand
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Publication number: 20040084651Abstract: What is disclosed is a magnetorheological fluid useful for incorporating within the working gap of magnetorheologically controllable linear or rotary devices. The MR fluid includes a carrier fluid component and a magnetic responsive particle component characterized by D10 of 2 &mgr;m up to and including a D10 of 5 &mgr;m, a D50 of 8 &mgr;m up to and including D50 of 15 &mgr;m; a D90 of 25 &mgr;m to and including a D90 of 40 &mgr;m; and further characterized by least squares regression (R2) particles size against log normal cumulative volume percent of greater than or equal to 0.77. Optional preferred additives included therewith include thixotropic agent or viscosity modifier, dispersant or surfactant, antioxidant, corrosion inhibitor, and one or more lubricants.Type: ApplicationFiled: November 6, 2002Publication date: May 6, 2004Applicant: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand
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Publication number: 20040084263Abstract: Magnetorheological devices, including damping devices, rotary devices, and haptic systems constructed with said devices are disclosed. The devices contain dry magnetically-responsive particles, or MR fluids containing the magnetically responsive particles. The magnetically soft particles characterized by a single process yield population of atomized particles having a cumulative 10%, 50% and 90% by volume, fraction within specified size, i.e., D10 of from 2 up to and including a D10 of 5 &mgr;m, a D50 8 &mgr;m up to and including a D50 of 15 &mgr;m, a D90 of 25 &mgr;m up to and including a D90 of 40 &mgr;m, and characterized by a least squares regression of log normal particles size against cumulative volume % fraction of greater than or equal to 0.77.Type: ApplicationFiled: November 6, 2002Publication date: May 6, 2004Applicant: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand
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Publication number: 20030071238Abstract: 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 defined gap, and employing a magnetic-responsive composition characterized by comprising non-sperical magnetic-responsive particles of average number diameter distribution (d50) from 6 to 100 microns and at least one friction-reducing additive that reduces the interparticle friction between the magnetic-responsive particles.Type: ApplicationFiled: November 1, 2002Publication date: April 17, 2003Applicant: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand
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Patent number: 6395193Abstract: The invention provides a magnetorheological composition having reduced off-state forces and good performance. Specifically, this invention is directed to a magnetorheological composition that may comprise non-sperical magnetic-responsive particles and at least one friction-reducing additive that reduces the interparticle friction between the magnetic-responsive particles.Type: GrantFiled: May 3, 2000Date of Patent: May 28, 2002Assignee: Lord CorporationInventors: K. Andrew Kintz, Teresa L. Forehand