Patents by Inventor Ivan G. Sears
Ivan G. Sears 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: 8510924Abstract: A reconfigurable fixture device system, including: a base member; a reconfigurable pad disposed on the base member, wherein the reconfigurable pad comprises a shape memory material configured to selectively conform to a surface contour of a workpiece; an activation device in operative communication with the shape memory material; a controller in operable communication with at least one of the reconfigurable pad, the activation device, and the base member; a plurality of sensors for sensing a parameter associated with at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece, wherein the plurality of sensors is in operable communication with the controller; and an actuator in operable communication with the controller and the at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece.Type: GrantFiled: January 11, 2011Date of Patent: August 20, 2013Assignee: GM Global Technology Operations LLCInventors: Nilesh D. Mankame, James W. Wells, Christopher P. Henry, Ivan G. Sears, Douglas Martin Linn, Alan L. Browne, Richard J. Skurkis
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Patent number: 8176616Abstract: A method for error-proofing clamping operation performed with a reconfigurable clamp having a body, a locking member, a plurality of moveable pins for contacting an object, and a plunger is provided. The method includes applying a force to the plunger and sensing whether the plunger achieves a fully-depressed position, and releasing the force to the plunger and sensing whether the plunger achieves a fully-extended position. The method may additionally include applying the force to the plunger, contacting the object with the plurality of pins and sensing whether the clamp body achieves a predetermined position relative to a clamping device.Type: GrantFiled: December 29, 2008Date of Patent: May 15, 2012Assignee: GM Global Technology Operations LLCInventors: Robin Stevenson, Ivan G. Sears, Richard J. Skurkis, Jeff Dellach, Mike Vainstein
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Patent number: 7997632Abstract: A morphable vehicle member utilizing at least one active material to change at least one attribute in response to an activation signal. The change in at least one attribute is a change in a shape dimension, a shape orientation, an expansion, a contraction, a morphing, a yield strength property, a flexural modulus or a combination. Preferably, the change in at least one attribute in the morphable vehicle member is reversible. Also disclosed herein are methods for the morphable vehicle member utilizing at least one active material to change at least one attribute on demand in response to an activation signal.Type: GrantFiled: June 7, 2007Date of Patent: August 16, 2011Assignee: GM Global Technology Operations LLCInventors: Alan L. Browne, Nancy L. Johnson, Ivan G. Sears
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Publication number: 20110101590Abstract: A reconfigurable fixture device system, including: a base member; a reconfigurable pad disposed on the base member, wherein the reconfigurable pad comprises a shape memory material configured to selectively conform to a surface contour of a workpiece; an activation device in operative communication with the shape memory material; a controller in operable communication with at least one of the reconfigurable pad, the activation device, and the base member; a plurality of sensors for sensing a parameter associated with at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece, wherein the plurality of sensors is in operable communication with the controller; and an actuator in operable communication with the controller and the at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece.Type: ApplicationFiled: January 11, 2011Publication date: May 5, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Nilesh D. Mankame, James W. Wells, Christopher P. Henry, Ivan G. Sears, Douglas M. Linn, Alan L. Browne, Richard J. Skurkis
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Patent number: 7891075Abstract: A reconfigurable fixture device system, including: a base member; a reconfigurable pad disposed on the base member, wherein the reconfigurable pad comprises a shape memory material configured to selectively conform to a surface contour of a workpiece; an activation device in operative communication with the shape memory material; a controller in operable communication with at least one of the reconfigurable pad, the activation device, and the base member; a plurality of sensors for sensing a parameter associated with at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece, wherein the plurality of sensors is in operable communication with the controller; and an actuator in operable communication with the controller and the at least one of the reconfigurable pad, the base member, the fixture device, and the workpiece.Type: GrantFiled: January 19, 2006Date of Patent: February 22, 2011Assignee: GM Global Technology Operations, Inc.Inventors: Nilesh D. Mankame, James W. Wells, Christopher P. Henry, Ivan G. Sears, Douglas M. Linn, Alan L. Browne, Richard J. Skurkis
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Patent number: 7761974Abstract: A process generally includes contacting a surface of at least one workpiece with a reconfigurable pad of a fixture device, wherein the reconfigurable pad comprises a shape memory material configured to conform to the surface of the at least one workpiece, and fixturing the contacted workpiece.Type: GrantFiled: January 19, 2006Date of Patent: July 27, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Alan L. Browne, Douglas M. Linn, Nilesh D. Mankame, Roland J. Menassa, Ivan G. Sears, Robin Stevenson, Christopher P. Henry, Nancy L. Johnson
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Publication number: 20100164160Abstract: A method for error-proofing clamping operation performed with a reconfigurable clamp having a body, a locking member, a plurality of moveable pins for contacting an object, and a plunger is provided. The method includes applying a force to the plunger and sensing whether the plunger achieves a fully-depressed position, and releasing the force to the plunger and sensing whether the plunger achieves a fully-extended position. The method may additionally include applying the force to the plunger, contacting the object with the plurality of pins and sensing whether the clamp body achieves a predetermined position relative to a clamping device.Type: ApplicationFiled: December 29, 2008Publication date: July 1, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: ROBIN STEVENSON, IVAN G. SEARS, RICHARD J. SKURKIS, JEFF DELLACH, MIKE VAINSTEIN
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Patent number: 7726637Abstract: A reconfigurable clamp is provided, where the clamp includes: a clamp body including a plurality of through holes formed within the clamp body; a plurality of movable pins which slidably fit within the through holes in the clamp body; wherein the movable pins incorporate a tapered section to facilitate locking of the movable pins; and wherein the clamp is reconfigurable by movement of the pins to conform to a surface geometry of an object of arbitrary shape through contact with that object. The clamped surface is represented as a series of discrete points corresponding to the ends of the plurality of pins.Type: GrantFiled: September 10, 2007Date of Patent: June 1, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Robin Stevenson, Ivan G. Sears, Richard J. Skurkis, Jeff Dellach, Mike Vainstein
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Publication number: 20100019541Abstract: A morphable vehicle member utilizing at least one active material to change at least one attribute in response to an activation signal. The change in at least one attribute is a change in a shape dimension, a shape orientation, an expansion, a contraction, a morphing, a yield strength property, a flexural modulus or a combination. Preferably, the change in at least one attribute in the morphable vehicle member is reversible. Also disclosed herein are methods for the morphable vehicle member utilizing at least one active material to change at least one attribute on demand in response to an activation signal.Type: ApplicationFiled: June 7, 2007Publication date: January 28, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Alan L. Browne, Nancy L. Johnson, Ivan G. Sears
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Patent number: 7587805Abstract: A fixture device generally includes a base member, a reconfigurable pad disposed on the base member, wherein the reconfigurable pad comprises a shape memory material configured to selectively conform to a surface contour of a workpiece, and an activation device in operative communication with the shape memory material.Type: GrantFiled: January 19, 2006Date of Patent: September 15, 2009Assignee: GM Global Technology Operations, Inc.Inventors: Alan L. Browne, Douglas M. Linn, Nilesh D. Mankame, Roland J. Menassa, Ivan G. Sears, Robin Stevenson, Christopher P. Henry, Nancy L. Johnson, Charles W. Wampler, II
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Publication number: 20090065994Abstract: A reconfigurable clamp is provided, where the clamp includes: a clamp body including a plurality of through holes formed within the clamp body; a plurality of movable pins which slidably fit within the through holes in the clamp body; wherein the movable pins incorporate a tapered section to facilitate locking of the movable pins; and wherein the clamp is reconfigurable by movement of the pins to conform to a surface geometry of an object of arbitrary shape through contact with that object. The clamped surface is represented as a series of discrete points corresponding to the ends of the plurality of pins.Type: ApplicationFiled: September 10, 2007Publication date: March 12, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Robin Stevenson, Ivan G. Sears, Richard J. Skurkis, Jeff Dellach, Mike Vainstein
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Patent number: 7370894Abstract: A morphable vehicle member utilizing at least one active material to change at least one attribute in response to an activation signal. The change in at least one attribute is a change in a shape dimension, a shape orientation, an expansion, a contraction, a morphing, a yield strength property, a flexural modulus or a combination. Preferably, the change in at least one attribute in the morphable vehicle member is reversible. Also disclosed herein are methods for the morphable vehicle member utilizing at least one active material to change at least one attribute on demand in response to an activation signal.Type: GrantFiled: June 7, 2007Date of Patent: May 13, 2008Assignee: GM Global Technology Operations, Inc.Inventors: Alan L. Browne, Nancy L. Johnson, Ivan G. Sears
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Patent number: 7252313Abstract: A morphable vehicle member utilizing at least one active material to change at least one attribute in response to an activation signal. The change in at least one attribute is a change in a shape dimension, a shape orientation, an expansion, a contraction, a morphing, a yield strength property, a flexural modulus or a combination. Preferably, the change in at least one attribute in the morphable vehicle member is reversible. Also disclosed herein are methods for the morphable vehicle member utilizing at least one active material to change at least one attribute on demand in response to an activation signal.Type: GrantFiled: February 17, 2006Date of Patent: August 7, 2007Assignee: GM Global Technology Operations, Inc.Inventors: Alan L. Browne, Nancy L. Johnson, Ivan G. Sears
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Patent number: 7204481Abstract: A reconfigurable clamp for a flexible manufacturing system comprises a body portion, a plurality of pins slidably engaged within sleeves formed in the body portion, a compression spring attached to each shaft of the plurality of pins, a reservoir comprising a magnetorheological fluid in operative communication with the plurality of pins, and an electromagnet in operative communication with the magnetorheological fluid, wherein the electromagnet selectively increases a yield stress property of the magnetorheological fluid; and a matching pressure foot.Type: GrantFiled: June 3, 2005Date of Patent: April 17, 2007Assignee: GM Global Technology Operations, Inc.Inventors: Ivan G. Sears, Robin Stevenson, Roland J. Menassa