Patents by Inventor Timothy Edward Langlais
Timothy Edward Langlais 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: 9377054Abstract: A fluid seal for sealing a gap region for rolling elements rotationally connecting a shaft and an outer structure of a rotating assembly. In embodiments described, the fluid seal includes an inner capillary seal and an outer capillary seal radially and axially spaced from the inner capillary seal. The inner and outer capillary seals are formed along a passageway having an axial portion and a radial portion formed along capillary surfaces of a fluid seal structure and opposed transverse and upright surfaces. In embodiments disclosed, the fluid seal structure includes a seal ring and cap or a seal plate structure. In another embodiment, a flange portion of the shaft forms the fluid seal structure.Type: GrantFiled: May 19, 2014Date of Patent: June 28, 2016Assignee: Seagate Technology LLCInventors: Timothy Edward Langlais, Daniel Dennis Dittmer, Troy M. Herndon
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Patent number: 9322109Abstract: A method includes rotating a first motor part around a first structure substantially similar to a second motor part. The method also includes applying a first current to the first structure to electro-chemically machine the first motor part.Type: GrantFiled: August 1, 2013Date of Patent: April 26, 2016Assignee: Seagate Technology LLCInventors: Timothy Edward Langlais, Chris M. Woldemar, Troy M. Herndon
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Publication number: 20150330453Abstract: A fluid seal for sealing a gap region for rolling elements rotationally connecting a shaft and an outer structure of a rotating assembly. In embodiments described, the fluid seal includes an inner capillary seal and an outer capillary seal radially and axially spaced from the inner capillary seal. The inner and outer capillary seals are formed along a passageway having an axial portion and a radial portion formed along capillary surfaces of a fluid seal structure and opposed transverse and upright surfaces. In embodiments disclosed, the fluid seal structure includes a seal ring and cap or a seal plate structure. In another embodiment, a flange portion of the shaft forms the fluid seal structure.Type: ApplicationFiled: May 19, 2014Publication date: November 19, 2015Inventors: Timothy Edward Langlais, Daniel Dennis Dittmer, Troy M. Herndon
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Patent number: 9165577Abstract: Provided herein is an apparatus, including a spinstand configured to position a disk in a testing orientation and a motor coupled to the spinstand, configured to rotate the disk. The motor comprises a fluid dynamic bearing.Type: GrantFiled: March 5, 2014Date of Patent: October 20, 2015Assignee: Seagate Technology LLCInventors: Dale E. Kukacka, David G. Wobbe, Timothy Edward Langlais, ReAnn Dargus Robelia
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Publication number: 20150294689Abstract: Provided herein is a method, including detecting a plurality of pieces of data associated with a motor and determining a percent drag change based on the plurality of pieces of data associated with the motor. The method further includes determining a failure prediction based on the percent drag change.Type: ApplicationFiled: August 5, 2014Publication date: October 15, 2015Inventors: Suiwing Lawrence Leung, Timothy Edward Langlais
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Publication number: 20150034494Abstract: A method includes rotating a first motor part around a first structure substantially similar to a second motor part. The method also includes applying a first current to the first structure to electro-chemically machine the first motor part.Type: ApplicationFiled: August 1, 2013Publication date: February 5, 2015Applicant: Seagate Technology LLCInventors: Timothy Edward Langlais, Chris M. Woldemar, Troy M. Herndon
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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: 20140254342Abstract: Provided herein is an apparatus, including a spinstand configured to position a disk in a testing orientation and a motor coupled to the spinstand, configured to rotate the disk. The motor comprises a fluid dynamic bearing.Type: ApplicationFiled: March 5, 2014Publication date: September 11, 2014Applicant: SEAGATE TECHNOLOGY LLCInventors: Dale E. Kukacka, David G. Wobbe, Timothy Edward Langlais, ReAnn Dargus Robelia
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Publication number: 20140217865Abstract: An apparatus is provided, including a base-deck floor; a base-deck frame, overlying the base-deck floor; a top cover, overlying the base-deck frame; and an affixing means operable to attach the base-deck frame to the base-deck floor, wherein the base-deck frame is operable to be fastened to both the base-deck floor and the top cover to provide a housing for a hard disk drive. A method is also provided, including assembling at least a portion of a hard disk drive assembly on a base-deck floor; affixing a base-deck frame to the base-deck floor; and securing a top cover to the base-deck frame.Type: ApplicationFiled: March 5, 2013Publication date: August 7, 2014Applicant: SEAGATE TECHNOLOGY LLCInventors: Wolfgang Rosner, Timothy Edward Langlais, Hany Michael Gross, Joseph H. Sassine
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Patent number: 8797679Abstract: An apparatus is provided, including a base-deck floor; a base-deck frame, overlying the base-deck floor; a top cover, overlying the base-deck frame; and an affixing means operable to attach the base-deck frame to the base-deck floor, wherein the base-deck frame is operable to be fastened to both the base-deck floor and the top cover to provide a housing for a hard disk drive. A method is also provided, including assembling at least a portion of a hard disk drive assembly on a base-deck floor; affixing a base-deck frame to the base-deck floor; and securing a top cover to the base-deck frame.Type: GrantFiled: March 5, 2013Date of Patent: August 5, 2014Assignee: Seagate Technology LLCInventors: Wolfgang Rosner, Timothy Edward Langlais, Hany Michael Gross, Joseph H. Sassine
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Patent number: 8743505Abstract: 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 of the fluid dynamic bearing apparatus through the third minute gap. The fluid dynamic bearing apparatus further includes a plurality of dynamic pressure generating grooves and an annular groove.Type: GrantFiled: May 14, 2013Date of Patent: June 3, 2014Assignees: Nidec Corporation, Seagate Technology LLCInventors: Hiroki Yamada, Junya Mizukami, Tsuyoshi Morita, Tetsuya Maruyama, Takuro Iguchi, Troy Michael Herndon, Timothy Edward Langlais
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Publication number: 20130243356Abstract: 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. The fluid dynamic bearing apparatus further includes a plurality of dynamic pressure generating grooves and an all around groove.Type: ApplicationFiled: May 14, 2013Publication date: September 19, 2013Applicants: SEAGATE TECHNOLOGY LLC, NIDEC CORPORATIONInventors: Hiroki YAMADA, Junya MIZUKAMI, Tsuyoshi MORITA, Tetsuya MARUYAMA, Takuro IGUCHI, Troy Michael HERNDON, Timothy Edward Langlais
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Patent number: 8493820Abstract: A thermally compensated fluid dynamic bearing motor includes a stationary member and a rotatable member rotatable about the stationary member. A hub is coupled with the rotatable member and includes ceramic material with a first coefficient of thermal expansion, wherein the hub is operable to be coupled with a data storage disk. Further the first coefficient of thermal expansion is substantially equal to a second coefficient of thermal expansion of the data storage disk.Type: GrantFiled: May 25, 2012Date of Patent: July 23, 2013Inventors: Timothy Edward Langlais, Troy Michael Herndon
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Patent number: 6982842Abstract: A method of performing predictive failure analysis (PFA) for a disc drive includes maintaining at least two primary error counts during operation of the disc drive. The primary error counts each correspond to disc drive errors associated with different attributes of the disc drive and are potentially indicative of disc drive failure. Imminent disc drive failure is predicted based upon a combination of the primary error counts.Type: GrantFiled: January 30, 2003Date of Patent: January 3, 2006Assignee: Seagate Technology LLCInventors: Gary Gang Jing, Scott Douglas Ulrich, Timothy Edward Langlais, Yi Q. Lin
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Publication number: 20040051988Abstract: A method of performing predictive failure analysis (PFA) for a disc drive includes maintaining at least two primary error counts during operation of the disc drive. The primary error counts each correspond to disc drive errors associated with different attributes of the disc drive and are potentially indicative of disc drive failure. Imminent disc drive failure is predicted based upon a combination of the primary error counts.Type: ApplicationFiled: January 30, 2003Publication date: March 18, 2004Inventors: Gary Gang Jing, Scott Douglas Ulrich, Timothy Edward Langlais, Yi Q. Lin
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Patent number: RE47082Abstract: An apparatus is provided, including a base-deck floor; a base-deck frame, overlying the base-deck floor; a top cover, overlying the base-deck frame; and an affixing means operable to attach the base-deck frame to the base-deck floor, wherein the base-deck frame is operable to be fastened to both the base-deck floor and the top cover to provide a housing for a hard disk drive. A method is also provided, including assembling at least a portion of a hard disk drive assembly on a base-deck floor; affixing a base-deck frame to the base-deck floor; and securing a top cover to the base-deck frame.Type: GrantFiled: December 1, 2014Date of Patent: October 9, 2018Assignee: Seagate Technology LLCInventors: Wolfgang Rosner, Timothy Edward Langlais, Hany Michael Gross, Joseph H. Sassine