Patents by Inventor Roger A. Addy
Roger A. Addy 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: 7823290Abstract: Methods of machining a single piece hub with integral upper and lower female cones includes providing a single piece hub with upper and lower conical voids having respective narrow ends proximal each other and respective wide ends distal each other. Surfaces of the voids are machined using a tool provided from a single side of the hub that is dimensioned to fit through an opening defined by the interface between the narrow ends of the conical void. The tool can be moved parallel to a rotational axis for accessing conical surfaces of both voids and perpendicular to the rotational axis while contacting the surfaces so as to produce a final machined surface.Type: GrantFiled: June 4, 2008Date of Patent: November 2, 2010Assignee: Seagate Technology, Inc.Inventors: Michael D. Kennedy, Roger A. Addy, Alan L. Grantz, Norbert S. Parsoneault, Wesley R. Clark, Matt L. Shumway, Ronald T. Albo
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Patent number: 7788961Abstract: A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second position. A metrology unit having a distal end removably coupled to the ballizing member moves the ballizing member from the second position back to the first position. A sensor detects a force exerted on the ballizing member by the workpiece at a third position, which is located between the first and second positions.Type: GrantFiled: July 15, 2009Date of Patent: September 7, 2010Assignee: Seagate Technology, LLCInventors: Lev Mikhailovich Dvoskin, Gunter K. Heine, Edelgard Heine, legal representative, Roger A. Addy
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Patent number: 7625468Abstract: An electrode containing a dielectric layer on a surface of the electrode and an active zone containing a metal embedded below the surface of the electrode, wherein the electrode is configured to form a groove pattern on a workpiece by an electrochemical machining process is disclosed. The electrode is capable of manufacturing a workpiece such as a counter plate, a sleeve journal or a conical bearing containing a groove pattern for fluid dynamics bearing, the groove pattern having a pitch of less than 80 microns. The electrode could be made by a method including depositing a dielectric layer on a surface of a metal, depositing a photoresist layer on the dielectric layer, printing a groove pattern on the photoresist layer, etching or physico-chemically removing portions of the dielectric photoresist layers to form grooves in the dielectric layer; removing the photoresist layer; and filling the grooves with a metal to produce the electrode.Type: GrantFiled: March 15, 2006Date of Patent: December 1, 2009Assignee: Seagate Technology, LLCInventors: Alexander Parkhomovsky, Lev M. Dvoskin, Roger A. Addy, Robert M. Pelstring
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Patent number: 7568370Abstract: A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second position. A metrology unit having a distal end removably coupled to the ballizing member moves the ballizing member from the second position back to the first position. A sensor detects a force exerted on the ballizing member by the workpiece at a third position, which is located between the first and second positions.Type: GrantFiled: November 17, 2006Date of Patent: August 4, 2009Assignee: Seagate Technology LLCInventors: Lev M. Dvoskin, Edelgard Heine, legal representative, Roger A. Addy, Gunter K. Heine
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Publication number: 20080229582Abstract: To simplify fabrication of an integral hub piece, the opening between the upper and lower female cones in this hub has sufficient width or radial dimension to allow access to both cones from one side of the hub with the cutting tool. A cutting tool is used which has a width smaller than the opening between the cones. Preferably, the tool has a width which is about equal to or smaller than an angular dimension through this opening which is defined by extending surfaces of the upper and lower female cones. If this limitation is satisfied, both cones can be created with a single machine set up operating from one side of the integrated hub. Preferably the tool should only move orthogonal or parallel to the cutting tools rotational center axis.Type: ApplicationFiled: June 4, 2008Publication date: September 25, 2008Applicant: Seagate Technology, Inc.Inventors: Michael D. Kennedy, Roger A. Addy, Alan L. Grantz, Norbert S. Parsoneault, Wesley R. Clark, Matt L. Shumway, Ronald T. Albo
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Patent number: 7390125Abstract: To simplify fabrication of an integral hub piece, the opening between the upper and lower female cones in this hub has sufficient width or radial dimension to allow access to both cones from one side of the hub with the cutting tool. A cutting tool is used which has a width smaller than the opening between the cones. Preferably, the tool has a width which is about equal to or smaller than an angular dimension through this opening which is defined by extending surfaces of the upper and lower female cones. If this limitation is satisfied, both cones can be created with a single machine set up operating from one side of the integrated hub.Type: GrantFiled: June 3, 2005Date of Patent: June 24, 2008Assignee: Seagate Technology, Inc.Inventors: Michael D. Kennedy, Roger A. Addy, Alan L. Grantz, Norbert Steven Parsoneault, Wesley R. Clark, Matt L. Shumway, Ronald T. Albo
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Publication number: 20070215458Abstract: An electrode containing a dielectric layer on a surface of the electrode and an active zone containing a metal embedded below the surface of the electrode, wherein the electrode is configured to form a groove pattern on a workpiece by an electrochemical machining process is disclosed. The electrode is capable of manufacturing a workpiece such as a counter plate, a sleeve journal or a conical bearing containing a groove pattern for fluid dynamics bearing, the groove pattern having a pitch of less than 80 microns. The electrode could be made by a method including depositing a dielectric layer on a surface of a metal, depositing a photoresist layer on the dielectric layer, printing a groove pattern on the photoresist layer, etching or physico-chemically removing portions of the dielectric photoresist layers to form grooves in the dielectric layer; removing the photoresist layer; and filling the grooves with a metal to produce the electrode.Type: ApplicationFiled: March 15, 2006Publication date: September 20, 2007Applicant: SEAGATE TECHNOLOGY LLCInventors: Alexander Parkhomovsky, Lev Dvoskin, Roger Addy, Robert Pelstring
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Publication number: 20070133912Abstract: A fluid dynamic bearing capsule assembly having integral lubricating fluid recirculation paths for insertion into a disc drive hub for a data storage device that eliminates the need for machining recirculation paths directly into the hub.Type: ApplicationFiled: December 9, 2005Publication date: June 14, 2007Applicant: SEAGATE TECHNOLOGY LLCInventor: Roger Addy
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Publication number: 20070067976Abstract: A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second position. A metrology unit having a distal end removably coupled to the ballizing member moves the ballizing member from the second position back to the first position. A sensor detects a force exerted on the ballizing member by the workpiece at a third position, which is located between the first and second positions.Type: ApplicationFiled: November 17, 2006Publication date: March 29, 2007Applicant: SEAGATE TECHNOLOGY LLCInventors: Lev Dvoskin, Gunter Heine, Edelgard Heine, Roger Addy
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Publication number: 20050226543Abstract: To simplify fabrication of an integral hub piece, the opening between the upper and lower female cones in this hub has sufficient width or radial dimension to allow access to both cones from one side of the hub with the cutting tool. A cutting tool is used which has a width smaller than the opening between the cones. Preferably, the tool has a width which is about equal to or smaller than an angular dimension through this opening which is defined by extending surfaces of the upper and lower female cones. If this limitation is satisfied, both cones can be created with a single machine set up operating from one side of the integrated hub. Preferably the tool should only move orthogonal or parallel to the cutting tools rotational center axis.Type: ApplicationFiled: June 3, 2005Publication date: October 13, 2005Inventors: Michael Kennedy, Roger Addy, Alan Grantz, Norbert Parsoneault, Wesley Clark, Matt Shumway, Ronald Albo
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Publication number: 20050000077Abstract: A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second position. A metrology unit having a distal end removably coupled to the ballizing member moves the ballizing member from the second position back to the first position. A sensor detects a force exerted on the ballizing member by the workpiece at a third position, which is located between the first and second positions.Type: ApplicationFiled: November 7, 2003Publication date: January 6, 2005Inventors: Lev Dvoskin, Gunter Heine, Edelgard Heine, Roger Addy
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Publication number: 20040156570Abstract: To simplify fabrication of an integral hub piece, the opening between the upper and lower female cones in this hub has sufficient width or radial dimension to allow access to both cones from one side of the hub with the cutting tool. A cutting tool is used which has a width smaller than the opening between the cones. Preferably, the tool has a width which is about equal to or smaller than an angular dimension through this opening which is defined by extending surfaces of the upper and lower female cones. If this limitation is satisfied, both cones can be created with a single machine set up operating from one side of the integrated hub.Type: ApplicationFiled: April 26, 2004Publication date: August 12, 2004Applicant: SEAGATE TECHNOLOGY LLC.Inventors: Michael D. Kennedy, Roger A. Addy, Alan L. Grantz, Norbert S. Parsoneault, Wesley R. Clark, Matt L. Shumway, Ronald T. Albo
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Patent number: 6755570Abstract: To simplify fabrication of an integral hub piece, the opening between the upper and lower female cones in this hub has sufficient width or radial dimension to allow access to both cones from one side of the hub with the cutting tool. A cutting tool is used which has a width smaller than the opening between the cones. Preferably, the tool has a width which is about equal to or smaller than an angular dimension through this opening which is defined by extending surfaces of the upper and lower female cones. If this limitation is satisfied, both cones can be created with a single machine set up operating from one side of the integrated hub. Preferably the tool should only move orthogonal or parallel to the cutting tools rotational center axis.Type: GrantFiled: February 7, 2000Date of Patent: June 29, 2004Assignee: Seagate Technology LLCInventors: Michael D. Kennedy, Roger A. Addy, Alan L. Grantz, Norbert S. Parsoneault, Wesley R. Clark, Matt L. Shumway, Ronald T. Albo
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Patent number: 6638414Abstract: Apparatus for defining patterns electrochemically on conductive materials by forming the patterns as conductive features of a tool, providing insulative properties about the conductive features so the patterns are defined; then providing an immersive medium including an etchant or plating material for defining the pattern on a workpiece, providing an electric direct current so that the immersive medium is concentrated at desired locations defined by the conductive features on the conductive materials; and etching the conductive materials by applying the electric current in a quantity and for an elapsed time to etch or plate patterns in or on the conductive materials.Type: GrantFiled: July 31, 2001Date of Patent: October 28, 2003Assignee: Seagate Technology LLCInventors: Donald J. MacLeod, Klaus D. Kloeppel, Wesley R. Clark, Roger A. Addy
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Publication number: 20010050235Abstract: Apparatus for defining patterns electrochemically on conductive materials by forming the patterns as conductive features of a tool, providing insulative properties about the conductive features so the patterns are defined; then providing an immersive medium including an etchant or plating material for defining the pattern on a workpiece, providing an electric direct current so that the immersive medium is concentrated at desired locations defined by the conductive features on the conductive materials; and etching the conductive materials by applying the electric current in a quantity and for an elapsed time to etch or plate patterns in or on the conductive materials.Type: ApplicationFiled: July 31, 2001Publication date: December 13, 2001Applicant: SEAGATE TECHNOLOGY LLC.Inventors: Donald J. MacLeod, Klaus D. Kloeppel, Wesley R. Clark, Roger A. Addy
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Patent number: 6280088Abstract: A bearing assembly including a bearing cone (50) having a crowned bearing surface (56) with V-shaped grooves (60) that are shallow at their apex (62) and deepest at the outer edges (52, 54). When mated with a female bearing seat, lubricating fluid builds up along the midline of the bearing surface as the bearing seat rotates about the bearing cone.Type: GrantFiled: February 1, 2000Date of Patent: August 28, 2001Assignee: Seagate Technology LLCInventors: Hans Leuthold, Matt L. Shumway, Alan L. Grantz, Roger A. Addy, Norbert S. Parsoneault, Samnathan Murthy, Mohamed M. Rahman
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Patent number: 6267869Abstract: Apparatus for defining patterns electrochemically on conductive materials by forming the patterns as conductive features of a tool, providing insulative properties about the conductive features so the patterns are defined; then providing an immersive medium including an etchant or plating material for defining the pattern on a workpiece, providing an electric direct current so that the immersive medium is concentrated at desired locations defined by the conductive features on the conductive materials; and etching the conductive materials by applying the electric current in a quantity and for an elapsed time to etch or plate patterns in or on the conductive materials.Type: GrantFiled: June 4, 1999Date of Patent: July 31, 2001Assignee: Seagate Technology LLCInventors: Donald J. MacLeod, Klaus D. Kloeppel, Wesley R. Clark, Roger A. Addy
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Patent number: 6195895Abstract: Air which would otherwise be entrapped in an O-ring seal groove in a hydrodynamic bearing arrangement is removable from the seal groove by providing at least one passage between the seal groove and an adjacent thrust plate recess. The air is removed from the seal groove though the passages by drawing a vacuum at a lower end of the bearing arrangement. Preferably, the passages are formed, at least in part, by grooves defined in the upper surface of a land formed between the seal groove and the thrust plate recess.Type: GrantFiled: August 25, 1999Date of Patent: March 6, 2001Assignee: Seagate Technology LLCInventors: David Wuester, Sr., Roger Addy
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Patent number: 6149161Abstract: An improved seal for a hydrodynamic bearing which aids in making the bearing less sensitive to changes in load and rotational speed, which is especially useful in hydrodynamic bearing motor in which the bearing is open at both the upper and lower ends. Additionally, a hydrodynamic bearing open at both ends in which the balance of fluid flow or pressure within the total system is maintained, and a seal usable to make a hydrodynamic bearing which is as stiff or stiffer than known standard spindle motors with hydrodynamic bearings which are supported only at one end. Also, a pumping seal useful in a hydrodynamic bearing design to maintain balanced internal fluid pressures during operation to minimize the likelihood of any lubricating fluid being lost during operation is disclosed.Type: GrantFiled: April 14, 1998Date of Patent: November 21, 2000Assignee: Seagate Technology LLCInventors: Alan L. Grantz, Roger A. Addy, Robert A. Nottingham
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Patent number: RE42854Abstract: To simplify fabrication of an integral hub piece, the opening between the upper and lower female cones in this hub has sufficient width or radial dimension to allow access to both cones from one side of the hub with the cutting tool. A cutting tool is used which has a width smaller than the opening between the cones. Preferably, the tool has a width which is about equal to or smaller than an angular dimension through this opening which is defined by extending surfaces of the upper and lower female cones. If this limitation is satisfied, both cones can be created with a single machine set up operating from one side of the integrated hub.Type: GrantFiled: May 12, 2010Date of Patent: October 18, 2011Assignee: Seagate Technology LLCInventors: Michael D. Kennedy, Roger A. Addy, Alan L. Grantz, Norbert S. Parsoneault, Wesley R. Clark, Matt L. Shumway, Ronald T. Albo