Patents by Inventor Mark A. Golden
Mark A. Golden 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: 6983517Abstract: A releasable fastener system comprises two hook portions. The hook portions each include a support and a plurality of closely spaced upstanding hook elements extending from one side thereof. When the two hook portions are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. The head elements of the hook elements are formed of a material that provides a change in directional orientation of the head elements. In this manner, the directional orientation of the head elements of the hook elements can be remotely changed to provide a reduction or magnification in the shear and/or pull-off forces.Type: GrantFiled: November 26, 2002Date of Patent: January 10, 2006Assignee: General Motors CorporationInventors: Mark A. Golden, John C. Ulicny
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Publication number: 20050242322Abstract: A magnetorheological (MR) fluid includes a hydrocarbon carrier fluid. The MR fluid further includes magneto-responsive particles within the hydrocarbon carrier fluid, the particles having a size distribution with a maximum size less than about 100 microns. A clay-based suspending agent is disposed within the hydrocarbon carrier fluid. In an embodiment, the magneto-responsive particles may be ferromagnetic particles, and may be distributed in a suitable size distribution pattern, such as, for example, a bimodal distribution or the like.Type: ApplicationFiled: May 3, 2004Publication date: November 3, 2005Inventors: Robert Ottaviani, John Ulicny, Mark Golden, William Rodgers
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Patent number: 6932917Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including 10 to 14 wt % of a hydrocarbon-based liquid, 86 to 90 wt % of bimodal magnetizable particles, and 0.05 to 0.5 wt % fumed silica.Type: GrantFiled: June 17, 2003Date of Patent: August 23, 2005Assignee: General Motors CorporationInventors: Mark A. Golden, John C. Ulicny, Keith S. Snavely, Anthony L. Smith
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Patent number: 6929756Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including a liquid, magnetizable particles, and a molybdenum-amine complex.Type: GrantFiled: June 17, 2003Date of Patent: August 16, 2005Assignee: General Motors CorporationInventors: John C. Ulicny, Mark A. Golden
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Publication number: 20050139550Abstract: A method of recovering spilled hydrocarbon fluids from a body of water utilizing the increased oleophilic properties of reacted iron particles suspended in a magnetorheological (MR) fluid. The iron particles normally used to create MR fluids, are reacted with an organic compound containing an oleophilic chain end which attaches to the surface of the iron, prior to suspension in a liquid vehicle such as an organic oil. The reacted iron particles in the MR fluid are then applied to and mixed with a hydrocarbon spill on a body of water such as an oil spill, whereby subsequent exposure to a significant magnetic field provides for subsequent recovery of both the reacted magnetic particles and the hydrocarbon spill.Type: ApplicationFiled: December 10, 2004Publication date: June 30, 2005Inventors: John Ulicny, Mark Golden
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Patent number: 6881353Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including a liquid, magnetizable particles, a stearate and a thiophosphate.Type: GrantFiled: September 15, 2003Date of Patent: April 19, 2005Assignee: General Motors CorporationInventors: John C. Ulicny, Anthony L. Smith, Mark A. Golden, Charlene A. Hayden
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Patent number: 6877193Abstract: 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 whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. The hook elements are formed of a magnetorheological elastomer that provides a change in shape orientation and/or flexural modulus of the hook elements. In this manner, the shape orientation and/or flexural modulus of the hook elements can be remotely changed to provide a reduction or magnification in the shear and/or pull-off forces in addition to providing variable damping capabilities to the fastener system.Type: GrantFiled: November 25, 2002Date of Patent: April 12, 2005Assignee: General Motors CorporationInventors: Robert A. Ottaviani, John C. Ulicny, Mark A. Golden
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Patent number: 6824701Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including 10 to 14 wt % of a hydrocarbon-based liquid, 86 to 90 wt % of bimodal magnetizable particles, 0.05 to 0.5 wt % fumed silica, and an additive package including a paraffin oil, a phenol and a sulfide.Type: GrantFiled: June 23, 2003Date of Patent: November 30, 2004Assignee: General Motors CorporationInventors: John C. Ulicny, Anthony L. Smith, Mark A. Golden, Brian L. McDermott, Thomas J. Chapaton
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Publication number: 20040206929Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including a liquid, magnetizable particles, and a molybdenum-amine complex.Type: ApplicationFiled: June 17, 2003Publication date: October 21, 2004Applicant: General Motors CorporationInventors: John C. Ulicny, Mark A. Golden
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Publication number: 20040206928Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including 10 to 14 wt % of a hydrocarbon-based liquid, 86 to 90 wt % of bimodal magnetizable particles, and 0.05 to 0.5 wt % fumed silica.Type: ApplicationFiled: June 17, 2003Publication date: October 21, 2004Applicant: General Motors CorporationInventors: Mark A. Golden, John C. Ulicny, Keith S. Snavely, Anthony L. Smith
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Publication number: 20040194261Abstract: 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 whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. The hook elements are formed of a magnetorheological elastomer that provides a change in shape orientation and/or flexural modulus of the hook elements. In this manner, the shape orientation and/or flexural modulus of the hook elements can be remotely changed to provide a reduction or magnification in the shear and/or pull-off forces in addition to providing variable damping capabilities to the fastener system.Type: ApplicationFiled: April 15, 2004Publication date: October 7, 2004Applicant: General Motors CorporationInventors: Robert A. Ottaviani, John C. Ulicny, Mark A. Golden
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Publication number: 20040149953Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including a liquid, magnetizable particles, a stearate and a thiophosphate.Type: ApplicationFiled: September 15, 2003Publication date: August 5, 2004Inventors: John C. Ulicny, Anthony L. Smith, Mark A. Golden, Charlene A. Hayden
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Publication number: 20040135115Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including a liquid, magnetizable particles, a stearate and a thiophosphate.Type: ApplicationFiled: June 17, 2003Publication date: July 15, 2004Applicant: General Motors CorporationInventors: John C. Ulicny, Anthony L. Smith, Mark A. Golden, Charlene A. Hayden
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Patent number: 6742227Abstract: 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 whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. The hook elements comprise a magnetic material that provides a change in shape orientation of the hook elements in response to an activation signal. In this manner, the shape orientation of the hook elements can be remotely changed to provide a reduction or magnification in the shear and/or pull-off forces.Type: GrantFiled: November 26, 2002Date of Patent: June 1, 2004Assignee: General Motors CorporationInventors: John C. Ulicny, Mark A. Golden
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Publication number: 20040074071Abstract: 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 extending from one side thereof. A selected one of the hook elements or the loop material is formed from a thermally and/or electrically conductive material. The other one is formed of a material adapted to melt, flow or volatize at a defined temperature. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. Introducing an activation signal to the thermally and/or electrically conductive hook elements or loop material, causes the opposing material to melt, flow, soften, or volatize upon contact therewith.Type: ApplicationFiled: April 8, 2003Publication date: April 22, 2004Inventors: Mark A. Golden, John C. Ulicny, Alan Lampe Browne, Nancy L. Johnson, William Barvosa-Carter, Thomas B. Stanford, Leslie A. Momoda
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Publication number: 20040074061Abstract: 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 whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. The hook elements are formed of a magnetorheological elastomer that provides a change in shape orientation and/or flexural modulus of the hook elements. In this manner, the shape orientation and/or flexural modulus of the hook elements can be remotely changed to provide a reduction or magnification in the shear and/or pull-off forces in addition to providing variable damping capabilities to the fastener system.Type: ApplicationFiled: November 25, 2002Publication date: April 22, 2004Inventors: Robert A. Ottaviani, John C. Ulicny, Mark A. Golden
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Publication number: 20040074066Abstract: 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 whereas the hook portion includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. The hook elements comprise a magnetic material that provides a change in shape orientation of the hook elements in response to an activation signal. In this manner, the shape orientation of the hook elements can be remotely changed to provide a reduction or magnification in the shear and/or pull-off forces.Type: ApplicationFiled: November 26, 2002Publication date: April 22, 2004Inventors: John C. Ulicny, Mark A. Golden
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Publication number: 20040074063Abstract: A releasable fastener system comprises two hook portions. The hook portions each include a support and a plurality of closely spaced upstanding hook elements extending from one side thereof. When the two hook portions are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. The head elements of the hook elements are formed of a material that provides a change in directional orientation of the head elements. In this manner, the directional orientation of the head elements of the hook elements can be remotely changed to provide a reduction or magnification in the shear and/or pull-off forces.Type: ApplicationFiled: November 26, 2002Publication date: April 22, 2004Inventors: Mark A. Golden, John C. Ulicny
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Patent number: 6575509Abstract: An extendable vehicle bumper for external transportation and storage of objects. A horizontal platform is mounted to the underside of a vehicle frame and is attached at one end to the vehicle bumper. The platform is extendable on a horizontal plane between an open position and a closed position. In the closed position, the platform is supported in a horizontal plane within the vehicle framework on the underside of the rear end of the vehicle. The vehicle bumper serves to access the platform by providing a handle for extending the platform outwardly from the vehicle frame. When the platform is in the open position, the platform extends beyond the vehicle profile and is generally in rigid relation with the vehicle. The horizontal platform is extendable between the open and closed position by support arms fixed to the platform opposite the vehicle bumper.Type: GrantFiled: March 27, 2002Date of Patent: June 10, 2003Assignee: General Motors CorporationInventor: Mark A. Golden
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Publication number: 20030085584Abstract: A unitary removable bedliner for use in conjunction with the cargo box of a pick up truck is formed by a bottom wall, a pair of opposing sidewalls extending upward from the bottom wall, and a front wall also extending upward from the bottom between the opposing walls. Each wall has a rail extending perpendicular to and outwardly from its upper edge. The bedliner is preferably formed of a thermoplastic or thermoset material and is molded to form fit the cargo box, including the wheel well covers, of the pick up truck. The rails of the bedliner align with and rest upon the corresponding rails of the cargo box. The rails may be formed with stake pockets corresponding to stake pockets within the cargo box rails for continued use if desired. The tailgate of the pick up truck may not be covered by the bedliner, allowing access to the cargo space.Type: ApplicationFiled: November 3, 2001Publication date: May 8, 2003Inventor: Mark A. Golden