Patents by Inventor David Django Dexter
David Django Dexter 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: 10367135Abstract: A method of fabricating a base plate for piezoelectric actuation, comprises providing a plate having a major surface, striking a first removable portion of the plate in a first direction substantially normal to the major surface to shear the first removable portion relative to the plate by a shear distance that is less than the plate thickness. Striking the first removable portion in a second direction substantially opposite the first direction to reduce the shear distance by a reduction in shear that is less than the plate thickness. Leaving it the first removable portion in place rather than removing. Alternately, the removable portion may be created by lancing one or more portions spanning at least one opening through a base plate adjacent a first side of at least one opening and adjacent a second side of the at least one opening.Type: GrantFiled: May 5, 2016Date of Patent: July 30, 2019Assignee: INTRI-PLEX TECHNOLOGIES, INC.Inventors: David Django Dexter, Damon Douglas Brink, Ryan J. Schmidt
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Publication number: 20160248000Abstract: A method of fabricating a base plate for piezoelectric actuation, comprises providing a plate having a major surface, striking a first removable portion of the plate in a first direction substantially normal to the major surface to shear the first removable portion relative to the plate by a shear distance that is less than the plate thickness. Striking the first removable portion in a second direction substantially opposite the first direction to reduce the shear distance by a reduction in shear that is less than the plate thickness. Leaving it the first removable portion in place rather than removing. Alternately, the removable portion may be created by lancing one or more portions spanning at least one opening through a base plate adjacent a first side of at least one opening and adjacent a second side of the at least one opening.Type: ApplicationFiled: May 5, 2016Publication date: August 25, 2016Inventors: DAVID DJANGO DEXTER, Damon Douglas Brink, Ryan J. Schmidt
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Patent number: 9359665Abstract: A swage mount is manufactured for attaching a head suspension assembly to a head actuator arm for a hard disk drive. A conductive material is deposited on a predetermined part of the swage mount. A coating material is deposited on the swage mount including the predetermined part. Heat is applied to the swage mount, forming a mixture of the conductive material and the coating material. The mixture is conductive and supports a reliable connection between the swage mount and other disk drive components. Furthermore, the mixture enhances cleanliness by reducing particles shed from the swage mount. The conductive material is preferably gold, and the coating material is preferably nickel-based.Type: GrantFiled: July 22, 2015Date of Patent: June 7, 2016Assignee: INTRI-PLEX TECHNOLOGIES, INC.Inventors: David Django Dexter, Ryan John Schmidt, Paul Wesley Smith
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Patent number: 9361917Abstract: In certain embodiments, a method of fabricating a base plate for piezoelectric actuation, comprises providing a plate having a major surface; striking a first removable portion of the plate in a first direction substantially normal to the major surface to shear the first removable portion relative to the plate by a shear distance that is less than the plate thickness; striking the first removable portion in a second direction substantially opposite the first direction to reduce the shear distance by a reduction in shear that is less than the plate thickness; and leaving the first removable portion in place rather than removing the first removable portion. In other embodiments, the removable portion may be created by lancing one or more portions spanning at least one opening through a base plate adjacent a first side of at least one opening and adjacent a second side of the at least one opening.Type: GrantFiled: July 19, 2011Date of Patent: June 7, 2016Assignee: INTRI-PLEX TECHNOLOGIES, INC.Inventors: David Django Dexter, Damon Douglas Brink, Ryan John Schmidt
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Publication number: 20150361537Abstract: A swage mount is manufactured for attaching a head suspension assembly to a head actuator arm for a hard disk drive. A conductive material is deposited on a predetermined part of the swage mount. A coating material is deposited on the swage mount including the predetermined part. Heat is applied to the swage mount, forming a mixture of the conductive material and the coating material. The mixture is conductive and supports a reliable connection between the swage mount and other disk drive components. Furthermore, the mixture enhances cleanliness by reducing particles shed from the swage mount. The conductive material is preferably gold, and the coating material is preferably nickel-based.Type: ApplicationFiled: July 22, 2015Publication date: December 17, 2015Inventors: DAVID DJANGO DEXTER, Ryan John Schmidt, Paul Wesley Smith
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Patent number: 9165578Abstract: A swage mount is provided for attaching a head suspension assembly to a head actuator arm for a hard disk drive. The swage mount has a flange body with a thickness for providing clearance from the underlying disk. The swage mount may have a tip for in-plane movement. The tip may be âTâ shaped. The tip has a thickness that is greater than the thickness of the flange body for withstanding out-of-plane loads and for enhancing performance of the hard disk drive, for example, during reading/writing of data using the head. Mass properties of the swage mount, the twisting/bending yield load, modal frequency responses, and other performance metrics are analyzed to design the dimensions of the swage mount having favorable in-plane compliance and superior out-of-plane robustness.Type: GrantFiled: March 6, 2014Date of Patent: October 20, 2015Assignee: INTRI-PLEX TECHNOLOGIES, INC.Inventors: David Django Dexter, Paul Wesley Smith, Adam Donald Sutton, Ryan John Schmidt
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Publication number: 20150255095Abstract: A swage mount is provided for attaching a head suspension assembly to a head actuator arm for a hard disk drive. The swage mount has a flange body with a thickness for providing clearance from the underlying disk. The swage mount may have a tip for in-plane movement. The tip may be âTâ shaped. The tip has a thickness that is greater than the thickness of the flange body for withstanding out-of-plane loads and for enhancing performance of the hard disk drive, for example, during reading/writing of data using the head. Mass properties of the swage mount, the twisting/bending yield load, modal frequency responses, and other performance metrics are analyzed to design the dimensions of the swage mount having favorable in-plane compliance and superior out-of-plane robustness.Type: ApplicationFiled: March 6, 2014Publication date: September 10, 2015Applicant: Intri-Plex Technologies, Inc.Inventors: David Django Dexter, Paul Wesley Smith, Adam Donald Sutton, Ryan John Schmidt
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Patent number: 9123367Abstract: A swage mount is manufactured for attaching a head suspension assembly to a head actuator arm for a hard disk drive. A conductive material is deposited on a predetermined part of the swage mount. A coating material is deposited on the swage mount including the predetermined part. Heat is applied to the swage mount, forming a mixture of the conductive material and the coating material. The mixture is conductive and supports a reliable connection between the swage mount and other disk drive components. Furthermore, the mixture enhances cleanliness by reducing particles shed from the swage mount. The conductive material is preferably gold, and the coating material is preferably nickel-based.Type: GrantFiled: June 16, 2014Date of Patent: September 1, 2015Assignee: INTRI-PLEX TECHNOLOGIES, INC.Inventors: David Django Dexter, Ryan John Schmidt, Paul Wesley Smith
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Publication number: 20140193190Abstract: A novel tolerance ring includes a hollow cylindrical body defining a longitudinal axis that passes axially through its center. The hollow cylindrical body includes first and second longitudinal edges that define a circumferential gap. A plurality of bumps protrude radially from the hollow cylindrical body, and consists of a plurality of gap-adjacent bumps and a plurality of non-gap-adjacent bumps. At least one of the plurality of bumps is circumferentially between the gap and each of the non-gap-adjacent bumps. None of the plurality of bumps is circumferentially between the gap and each of the gap-adjacent bumps. Structure is disclosed to increase an otherwise lower average radial compressive stiffness of the gap-adjacent bumps to become more similar to an average radial stiffness of the non-gap-adjacent bumps.Type: ApplicationFiled: January 10, 2013Publication date: July 10, 2014Applicant: Intri-Plex Technologies, Inc.Inventors: Ryan John Schmidt, Kevin Patrick Hanrahan, Damon Douglas Brink, David Django Dexter, Philippe Jacques Parsy
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Patent number: 8385024Abstract: A novel tolerance ring includes a hollow cylindrical body defining a longitudinal axis that passes axially through its center. A circumferential gap divides the hollow cylindrical body so that the hollow cylindrical body includes first and second longitudinal edges that define the circumferential gap. A plurality of bumps protrude radially from the hollow cylindrical body, and consists of a plurality of gap-adjacent bumps and a plurality of non-gap-adjacent bumps. At least one of the plurality of bumps is circumferentially between the gap and each of the non-gap-adjacent bumps. None of the plurality of bumps is circumferentially between the gap and each of the gap-adjacent bumps. The tolerance ring includes a means for increasing an otherwise lower average radial compressive stiffness of the gap-adjacent bumps to become substantially equal to an average radial stiffness of the non-gap-adjacent bumps.Type: GrantFiled: October 7, 2010Date of Patent: February 26, 2013Assignee: IntriPlex TechnologiesInventors: Ryan John Schmidt, Kevin Patrick Hanrahan, Damon Douglas Brink, David Django Dexter, Philippe Jacques Parsy
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Publication number: 20130019724Abstract: In certain embodiments, a method of fabricating a base plate for piezoelectric actuation, comprises providing a plate having a major surface; striking a first removable portion of the plate in a first direction substantially normal to the major surface to shear the first removable portion relative to the plate by a shear distance that is less than the plate thickness; striking the first removable portion in a second direction substantially opposite the first direction to reduce the shear distance by a reduction in shear that is less than the plate thickness; and leaving the first removable portion in place rather than removing the first removable portion. In other embodiments, the removable portion may be created by lancing one or more portions spanning at least one opening through a base plate adjacent a first side of at least one opening and adjacent a second side of the at least one opening.Type: ApplicationFiled: July 19, 2011Publication date: January 24, 2013Applicant: INTRI-PLEX TECHNOLOGIES, INC.Inventors: David Django Dexter, Damon Douglas Brink, Ryan John Schmidt
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Patent number: 8284523Abstract: Various methods and apparatus relating to disk drive actuators and methods of manufacturing them are disclosed and claimed. In certain embodiments, a disk drive actuator assembly comprises a pivot bearing defining a pivot bearing rotational axis; an actuator arm including a bore, the pivot bearing disposed at least partially within the bore; a first tapered shim, interposed in the bore between the pivot bearing and the actuator arm, the first tapered shim having a thickness at a first end greater than a thickness at a second end; and a second tapered shim, interposed in the bore between the pivot bearing and the actuator arm, the second tapered shim having a thickness at a third end greater than a thickness at a fourth end; wherein the second tapered shim frictionally engages the first tapered shim to hold the pivot bearing substantially in place relative to the actuator arm.Type: GrantFiled: February 10, 2011Date of Patent: October 9, 2012Assignee: Intri-Plex Technologies, Inc.Inventors: Ryan John Schmidt, Philippe Jacques Parsy, Damon Douglas Brink, David Django Dexter, Sven Gronemann
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Publication number: 20120206836Abstract: Various methods and apparatus relating to disk drive actuators and methods of manufacturing them are disclosed and claimed. In certain embodiments, a disk drive actuator assembly comprises a pivot bearing defining a pivot bearing rotational axis; an actuator arm including a bore, the pivot bearing disposed at least partially within the bore; a first tapered shim, interposed in the bore between the pivot bearing and the actuator arm, the first tapered shim having a thickness at a first end greater than a thickness at a second end; and a second tapered shim, interposed in the bore between the pivot bearing and the actuator arm, the second tapered shim having a thickness at a third end greater than a thickness at a fourth end; wherein the second tapered shim frictionally engages the first tapered shim to hold the pivot bearing substantially in place relative to the actuator arm.Type: ApplicationFiled: February 10, 2011Publication date: August 16, 2012Applicant: INTRI-PLEX TECHNOLOGIES, INC.Inventors: Ryan John Schmidt, Phillipe Jacques Parsy, Damon Douglas Brink, David Django Dexter, Sven Groneman
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Publication number: 20120087044Abstract: A novel tolerance ring includes a hollow cylindrical body defining a longitudinal axis that passes axially through its center. A circumferential gap divides the hollow cylindrical body so that the hollow cylindrical body includes first and second longitudinal edges that define the circumferential gap. A plurality of bumps protrude radially from the hollow cylindrical body, and consists of a plurality of gap-adjacent bumps and a plurality of non-gap-adjacent bumps. At least one of the plurality of bumps is circumferentially between the gap and each of the non-gap-adjacent bumps. None of the plurality of bumps is circumferentially between the gap and each of the gap-adjacent bumps. The tolerance ring includes a means for increasing an otherwise lower average radial compressive stiffness of the gap-adjacent bumps to become substantially equal to an average radial stiffness of the non-gap-adjacent bumps.Type: ApplicationFiled: October 7, 2010Publication date: April 12, 2012Applicant: INTRI-PLEX TECHNOLOGIES, INC.Inventors: Ryan John Schmidt, Kevin Patrick Hanrahan, Damon Douglas Brink, David Django Dexter, Philippe Jacques Parsy
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Patent number: 7507063Abstract: A snap ring for applications requiring cleanliness has a novel recessed interior contour that reduces debris generation during installation of the snap ring. The snap ring is suitable for applications where a reduction in debris generation is desirable, such as to retain an actuator pivot bearing in information storage devices like magnetic hard disk drives.Type: GrantFiled: March 29, 2004Date of Patent: March 24, 2009Assignee: Intri-Plex Technologies, Inc.Inventors: David Django Dexter, Damon Douglas Brink, Ryan John Schmidt, Matthew S. Sprankle, Kevin Patrick Hanrahan
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Patent number: 7450344Abstract: A magnetic head supporting structure comprises a metal purified by vacuum arc remelting, vacuum induction melting, electroslag remelting, or electroslag remelting under vacuum, in at least one of the regions that undergo plastic deformation during disk drive manufacture, to reduce small hard inclusions that might be released into the disk drive interior environment.Type: GrantFiled: November 12, 2003Date of Patent: November 11, 2008Assignee: Intri-plex Technologies, Inc.Inventors: Damon Douglas Brink, Kevin Patrick Hanrahan, Ryan John Schmidt, David Django Dexter