Patents by Inventor Norbert Steven Parsoneault
Norbert Steven Parsoneault 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: 9850941Abstract: An apparatus includes a stationary sleeve and a shaft operable to rotate with respect to the stationary sleeve. A hub rotates with respect to the stationary sleeve in response to the shaft rotating. A mechanically adjustable gap forming component is attached to the stationary sleeve and radially extends between the hub and a base. The mechanically adjustable gap forming component forms a radially extending gap above the mechanically adjustable gap forming component. The mechanically adjustable gap forming component is mechanically adjustable in an axial direction with respect to the stationary sleeve. The hub dynamically adjusts the radially extending gap above the mechanically adjustable gap forming component during rotation of the hub.Type: GrantFiled: September 16, 2016Date of Patent: December 26, 2017Assignee: Seagate Technology LLCInventors: Norbert Steven Parsoneault, Troy Michael Herndon, Alexander Gredinberg, Robert A. Nottingham
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Publication number: 20170002859Abstract: An apparatus includes a stationary sleeve and a shaft operable to rotate with respect to the stationary sleeve. A hub rotates with respect to the stationary sleeve in response to the shaft rotating. A mechanically adjustable gap forming component is attached to the stationary sleeve and radially extends between the hub and a base. The mechanically adjustable gap forming component forms a radially extending gap above the mechanically adjustable gap forming component. The mechanically adjustable gap forming component is mechanically adjustable in an axial direction with respect to the stationary sleeve. The hub dynamically adjusts the radially extending gap above the mechanically adjustable gap forming component during rotation of the hub.Type: ApplicationFiled: September 16, 2016Publication date: January 5, 2017Inventors: Norbert Steven Parsoneault, Troy Michael Herndon, Alexander Gredinberg, Robert A. Nottingham
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Patent number: 9470261Abstract: A fluid bearing motor. The fluid bearing motor includes a stationary sleeve, a backiron, a hub coupled to the backiron, and a gap forming component. The hub is operable to rotate with respect to the stationary sleeve. The gap forming component is attached to the stationary sleeve and forms a gap between the stationary sleeve and the backiron. The size of the gap dynamically changes in response to changes in temperature.Type: GrantFiled: May 11, 2011Date of Patent: October 18, 2016Assignee: Seagate Techonology LLCInventors: Norbert Steven Parsoneault, Troy Michael Herndon, Alexander Gredinberg, Robert A. Nottingham
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Patent number: 9016947Abstract: Provided herein is an apparatus, including a stationary component and a rotatable component; a fluid between the stationary component and the rotatable component; a limiter shoulder of the stationary component; a flanged limiter bushing of the rotatable component; and a separating means for separating the limiter shoulder and the limiter bushing, wherein the separating means comprises the fluid.Type: GrantFiled: June 21, 2013Date of Patent: April 28, 2015Assignee: Seagate Technology LLCInventors: Paco Gregor Flores, Troy M. Herndon, Norbert Steven Parsoneault
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Publication number: 20150061438Abstract: An apparatus includes a hub. The apparatus also includes a back iron that is coupled to the hub. In addition, a magnetic annulus is co-formed to the back iron.Type: ApplicationFiled: September 5, 2013Publication date: March 5, 2015Applicant: SEAGATE TECHNOLOGY LLCInventors: Hans Leuthold, Chris M. Woldemar, Norbert Steven Parsoneault
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Publication number: 20140376840Abstract: Provided herein is an apparatus, including a stationary component and a rotatable component; a fluid between the stationary component and the rotatable component; a limiter shoulder of the stationary component; a flanged limiter bushing of the rotatable component; and a separating means for separating the limiter shoulder and the limiter bushing, wherein the separating means comprises the fluid.Type: ApplicationFiled: June 21, 2013Publication date: December 25, 2014Inventors: Paco Gregor Flores, Troy M. Herndon, Norbert Steven Parsoneault
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Patent number: 8913344Abstract: An apparatus includes a fluid dynamic bearing and means for dynamically adjusting the stiffness or damping of the fluid dynamic bearing.Type: GrantFiled: October 25, 2013Date of Patent: December 16, 2014Assignee: Seagate Technology LLCInventors: Norbert Steven Parsoneault, Hans Leuthold, Paco Gregor Flores, Timothy Edward Langlais, Matthew M. McConnell, Chris M. Woldemar
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Publication number: 20140286600Abstract: Provided herein is an apparatus including a stationary portion having a thrust cup; a rotating portion having a sleeve configured to be rotatable with respect to the stationary portion; a first axially extending space defined by the thrust cup and the sleeve, wherein the first axially extending space includes a second portion positioned above a first portion of the first axially extending space; a capillary seal in the first portion of the first axially extending space; and a labyrinth seal, in the second portion of the first axially extending space.Type: ApplicationFiled: June 9, 2014Publication date: September 25, 2014Inventors: Hiroki YAMADA, Junya MIZUKAMI, Tsuyoshi MORITA, Tetsuya MARUYAMA, Takuro IGUCHI, Troy Michael HERNDON, Norbert Steven PARSONEAULT, Jeffry Arnold LEBLANC
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Patent number: 8472132Abstract: A fluid dynamic bearing apparatus includes a first minute gap, a second minute gap, a third minute gap, a fourth minute gap, and a fifth minute gap. A flow of a lubricating oil from the fifth minute gap to the fourth minute gap is caused by a plurality of dynamic pressure generating grooves arranged within the fluid dynamic bearing apparatus. This flow causes air bubbles mixed in the lubricating oil within the fifth minute gap to flow toward the third minute gap and be discharged to an outside through the third minute gap. In addition, a flow of the lubricating oil into the third minute gap caused by a centrifugal force accompanying rotation is inhibited.Type: GrantFiled: May 26, 2009Date of Patent: June 25, 2013Assignees: Nidec Corporation, Seagate Technology LLCInventors: Hiroki Yamada, Junya Mizukami, Tsuyoshi Morita, Tetsuya Maruyama, Takuro Iguchi, Troy Michael Herndon, Norbert Steven Parsoneault, Jeffry Arnold LeBlanc
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Patent number: 8454238Abstract: According to various embodiments of the invention, a motor with a rotatable hub having fluid dynamic journal and thrust bearings can be assembled from four major components: a spindle, a hub, a thrust washer, and a base. The spindle can integrate journal bearing, axial limiter, and ring seal functions. The hub can integrate journal bearing, thrust bearing, ring seal, axial limiter, capillary seal, and bumper functions. The thrust washer can integrate thrust bearing and lubricant circulation functions. The base can integrate capillary seal and lubricant storage and circulation functions. Each function can be integrated as structural feature in its corresponding component. The spindle, hub, and thrust bearing can be preassembled. The base can be loaded with lubricant prior to assembly with the spindle/hub/thrust bearing combination.Type: GrantFiled: August 23, 2006Date of Patent: June 4, 2013Assignee: Seagate Technology LLCInventors: Norbert Steven Parsoneault, Gregor Flores, Robert Alan Nottingham, Troy Michael Herndon, Jeffry Arnold LeBlanc
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Publication number: 20120288222Abstract: A fluid bearing motor. The fluid bearing motor includes a stationary sleeve, a backiron, a hub coupled to the backiron, and a gap forming component. The hub is operable to rotate with respect to the stationary sleeve. The gap forming component is attached to the stationary sleeve and forms a gap between the stationary sleeve and the backiron. The size of the gap dynamically changes in response to changes in temperature.Type: ApplicationFiled: May 11, 2011Publication date: November 15, 2012Applicant: SEAGATE TECHNOLOGY LLCInventors: Norbert Steven Parsoneault, Troy Michael Herndon, Alexander Gredinberg, Robert A. Nottingham
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Patent number: 7959357Abstract: A fluid dynamic bearing motor is described. In one embodiment, the fluid dynamic bearing motor includes a base that has a bore hole and a liner secured within the bore hole. The fluid dynamic bearing motor also includes a rotor assembly that has a shaft, which is partially disposed within the liner and configured to rotate relative to the liner. A fluid dynamic bearing is disposed between the liner and the shaft to support this relative rotation.Type: GrantFiled: March 31, 2004Date of Patent: June 14, 2011Assignee: Seagate Technology LLCInventors: Norbert Steven Parsoneault, Bao Trinh, JimPo Wang, Jerry Joseph Weingord
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Patent number: 7893585Abstract: Multifunctional components enable the construction of economical motor assemblies. A first embodiment of the present invention provides a hub, cup, spindle, and base assembly for a motor assembly having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. A second embodiment of the present invention provides a hub, spindle, and base with integrated cup assembly for a disc drive bearing having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. In a third embodiment, a hub is rotatably assembled with a spindle coupled to a thrust bearing, prior to assembly with a base. In further embodiments, motor assemblies comprise the above embodiments combined with stator and rotor assemblies.Type: GrantFiled: February 19, 2010Date of Patent: February 22, 2011Assignee: Seagate Technology LLCInventors: Troy Michael Herndon, Jeffry Arnold LeBlanc, Robert Alan Nottingham, Norbert Steven Parsoneault, Paco Flores
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Publication number: 20100141071Abstract: Multifunctional components enable the construction of economical motor assemblies. A first embodiment of the present invention provides a hub, cup, spindle, and base assembly for a motor assembly having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. A second embodiment of the present invention provides a hub, spindle, and base with integrated cup assembly for a disc drive bearing having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. In a third embodiment, a hub is rotatably assembled with a spindle coupled to a thrust bearing, prior to assembly with a base. In further embodiments, motor assemblies comprise the above embodiments combined with stator and rotor assemblies.Type: ApplicationFiled: February 19, 2010Publication date: June 10, 2010Applicant: SEAGATE TECHNOLOGY LLCInventors: Troy Michael Herndon, Jeffry Arnold LeBlanc, Robert Alan Nottingham, Norbert Steven Parsoneault, Paco Flores
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Patent number: 7679243Abstract: Multifunctional components enable the construction of economical motor assemblies. A first embodiment of the present invention provides a hub, cup, spindle, and base assembly for a motor assembly having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. A second embodiment of the present invention provides a hub, spindle, and base with integrated cup assembly for a disc drive bearing having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. In a third embodiment, a hub is rotatably assembled with a spindle coupled to a thrust bearing, prior to assembly with a base. In further embodiments, motor assemblies comprise the above embodiments combined with stator and rotor assemblies.Type: GrantFiled: December 22, 2005Date of Patent: March 16, 2010Assignee: Seagate Technology LLCInventors: Troy Michael Herndon, Jeffry Arnold LeBlanc, Robert Alan Nottingham, Norbert Steven Parsoneault, Paco Flores
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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: 20080050057Abstract: According to various embodiments of the invention, a motor with a rotatable hub having fluid dynamic journal and thrust bearings can be assembled from four major components: a spindle, a hub, a thrust washer, and a base. The spindle can integrate journal bearing, axial limiter, and ring seal functions. The hub can integrate journal bearing, thrust bearing, ring seal, axial limiter, capillary seal, and bumper functions. The thrust washer can integrate thrust bearing and lubricant circulation functions. The base can integrate capillary seal and lubricant storage and circulation functions. Each function can be integrated as structural feature in its corresponding component. The spindle, hub, and thrust bearing can be preassembled. The base can be loaded with lubricant prior to assembly with the spindle/hub/thrust bearing combination.Type: ApplicationFiled: August 23, 2006Publication date: February 28, 2008Applicant: SEAGATE TECHNOLOGY LLCInventors: Norbert Steven Parsoneault, Gregor Flores, Robert Alan Nottingham, Troy Michael Herndon, Jeffry Arnold LeBlanc
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Patent number: 7241051Abstract: A seal with a primary axis lying in the radial direction so that the fluid bearing is primarily extending in the axial direction between the rotating shaft and surrounding sleeve is disclosed. The capillary seal is positioned with an opening adjacent an end of the fluid bearing gap, and comprises two walls which diverge as they extend radially away from the fluid bearing so that the fluid held in the radial capillary seal is maintained adjacent an end of the gap, while the size of the reservoir defined by the diverging walls provides a large reservoir volume. The seal uses an additional capillary defined by a narrow annulus between the rotating shaft and a seal wall end. The narrow annulus establishes very high shock resistance preventing fluid loss past the outer axial wall of the radially capillary seal, and defines a small surface area from which evaporation can occur.Type: GrantFiled: June 13, 2005Date of Patent: July 10, 2007Assignee: Seagate Technology LLCInventors: Alan L. Grantz, Raquib U. Khan, Norbert Steven Parsoneault
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Publication number: 20070145837Abstract: Multifunctional components enable the construction of economical motor assemblies. A first embodiment of the present invention provides a hub, cup, spindle, and base assembly for a motor assembly having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. A second embodiment of the present invention provides a hub, spindle, and base with integrated cup assembly for a disc drive bearing having at least one journal bearing, at least one thrust bearing, and at least one fluid seal. In a third embodiment, a hub is rotatably assembled with a spindle coupled to a thrust bearing, prior to assembly with a base. In further embodiments, motor assemblies comprise the above embodiments combined with stator and rotor assemblies.Type: ApplicationFiled: December 22, 2005Publication date: June 28, 2007Applicant: SEAGATE TECHNOLOGY LLCInventors: Troy Herndon, Jeffry LeBlanc, Robert Nottingham, Norbert Steven Parsoneault, Paco Flores
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Patent number: 7234868Abstract: An improved rotational motor, such as a spindle motor for a disc drive, is provided. The motor first comprises a hub having a shaft portion and a horizontal body portion. The motor also comprises a sleeve surrounding the shaft portion of the hub. A fine first vertical gap is retained between the shaft and the inner diameter of the surrounding sleeve. In addition, a fine horizontal gap is provided between the upper hub portion and the top of the sleeve. A third gap is preferably provided between the hub and an outer diameter of the sleeve. The first vertical gap is filled with a lubricating liquid, such as a clean oil. A capillary seal is provided in the third gap. In one embodiment, the lubricating liquid extends into the horizontal gap. Oil pumping grooves are machined along the horizontal fluid gap. When the hub is rotated, the oil pumping grooves impel oil towards the shaft. This prevents any portion of the first vertical gap from becoming un-lubricated during rotation of the shaft.Type: GrantFiled: December 30, 2003Date of Patent: June 26, 2007Assignee: Seagate Technology LLCInventors: Michael Ray Tiller, Robert Alan Nottingham, Jeffry Arnold Leblanc, Troy Michael Herndon, Norbert Steven Parsoneault