Patents by Inventor Roy Lynn
Roy Lynn 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: 8476543Abstract: An electromechanical switch includes a contact assembly and a linkage assembly.Type: GrantFiled: May 6, 2011Date of Patent: July 2, 2013Assignee: Staco Systems, Inc.Inventors: Roy Lynn Hart, Kevin Mikio Takeuchi
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Publication number: 20110290623Abstract: An electromechanical switch includes a contact assembly and a linkage assembly.Type: ApplicationFiled: May 6, 2011Publication date: December 1, 2011Inventors: Roy Lynn Hart, Kevin Mikio Takeuchi
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Publication number: 20100027400Abstract: Disclosed herein are embodiments of motion limiting cover features that improve coil/VCM coupled resonance. The features are flexible in that their position and configuration can be customized to specifically target a certain type of undesirable motion, such as undesirable twisting (i.e., torsion) and/or bending.Type: ApplicationFiled: January 16, 2009Publication date: February 4, 2010Applicant: Seagate Technology LLCInventors: Hong Zhu, Roy Lynn Wood, James Roger Mahoney, Gene Allyn Thompson, Peng Yan
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Patent number: 7274530Abstract: In a data handling system having a radially-dependent track incongruity between data surfaces, at least some tracks are logically mapped so that tracks on different data surfaces correspond with one another. The correspondence is defined by the mapping so as to shorten an average headswitch seek. For example, a logical track mapping of first and second non-coaxial track sets can be defined so as to optimize a headswitch seek within each of many intermediate logical cylinders identified in the mapping.Type: GrantFiled: October 9, 2003Date of Patent: September 25, 2007Assignee: Seagate Technology LLCInventors: Nathaniel Boyd Wilson, Roy Lynn Wood
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Patent number: 6643080Abstract: Method and apparatus for identifying a resonance by changing a spindle speed, which has the effect of changing a corresponding sampling rate and Nyquist frequency. The invention discriminates (1) between plausible frequencies of true resonance and/or (2) aliased resonance from non-aliased resonances. This is accomplished by monitoring whether and/or how a resonance shifts during this speed change. Methods of the present invention monitor resonances by deriving a resonance indicator such as an apparent frequency (below the Nyquist frequency), a gain or error magnitude (compared to a derived threshold at a calculated frequency of interest), or similar criteria tested by values conventionally illustrated on a Bode plot. The present invention further includes steps or structural features for configuring a controller to attenuate or similarly limit an unwanted frequency component of an actuator control signal. In this way, resonances in the actuator can be reduced, and servo speed and accuracy thereby enhanced.Type: GrantFiled: July 27, 2000Date of Patent: November 4, 2003Assignee: Seagate Technology LLCInventors: Clyde Everett Goodner, III, Roy Lynn Wood, Lealon Ray McKenzie
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Patent number: 6497786Abstract: Systems, methods and apparatus are disclosed for bonding a plurality of substrates via a solventless, curable adhesive. At least one of the substrates has a deformation temperature below the activation temperature of the adhesive. A workpiece is assembled from a plurality of substrates with the curable adhesive disposed therebetween. Pressure is applied to the workpiece and the workpiece is irradiated with variable frequency microwave energy. The workpiece is swept with at least one window of microwave frequencies selected to heat the adhesive without heating the substrates above their respective deformation temperatures.Type: GrantFiled: November 6, 1997Date of Patent: December 24, 2002Assignee: Nike, Inc.Inventors: Bruce J. Kilgore, Thomas McKnight, Roy Lynn O'Mohunddro, John A. Battista, Jr., Richard J. Petrucci, Zakaryae Fathi, Jianghua Wei
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Patent number: 6477000Abstract: An apparatus and method for minimizing damage to a disc drive assembly subjected to non-operational shock. The disc drive has rotatable discs upon which data can be written and read by read/write heads supported by and controllable by an actuator assembly having actuator arms moveable over the complete data containing surfaces of the discs. A disc snubber is supported in apertures in the actuator arms, the disc snubber having bumper arms radially extending to nest the outer perimeters of the discs when the disc drive assembly is in its non-operational mode. The disc snubber is in clearing relationship to the discs in the operational mode. The disc snubber is disposed to dampen disc deflection caused by non-operational shock, thereby avoiding deleterious actuator arm/disc contact.Type: GrantFiled: December 31, 1997Date of Patent: November 5, 2002Assignee: Seagate Technology LLCInventors: Kenneth Lee Pottebaum, Roy Lynn Wood
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Patent number: 6377420Abstract: A disc drive having reduced mechanical vibration is disclosed. An annular viscoelastic damper is sandwiched beneath the head disc assembly cover against the bearing assembly of the actuator to dampen mechanical vibrations transmitted by the cover to the actuator assembly. The damper is an annular disc made of a composite of a layer of viscoelastic polymer and a backing stiffening layer.Type: GrantFiled: September 20, 2000Date of Patent: April 23, 2002Assignee: Seagate Technology LLCInventors: Srinivas Tadepalli, Roy Lynn Wood
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Publication number: 20020034041Abstract: A data disc support assembly comprising a hub with a first axial end and a second axial end and a flange depending from the second axial end, the flange comprising a contact surface extending radially from the central axis between an inner contact surface radius and an outer contact surface radius and imparting a clamping force toward one surface of the disc. A clamp connected to the hub comprises a contact surface imparting a clamping force toward an opposing surface of the disc, the clamp contact surface extending radially from the central axis between in inner contact surface radius and an outer contact surface radius, wherein the flange contact surface and the clamp contact surface are substantially equivalent and radially offset.Type: ApplicationFiled: June 29, 2001Publication date: March 21, 2002Inventors: Erming Luo, Roy Lynn, John Daniel Stricklin
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Patent number: 6194024Abstract: The present invention permits solder joints to be made directly to via and through holes without the solder being wicked into the vias or through holes, by filling plated through holes with an epoxy or cyanate fill composition. When cured and overplated, the fill composition provides support for the solder joint and provides a flat solderable surface for the inter-connection. In certain embodiments, the cured fill compositions, offer a further advantage of being conductive. The invention also relates to several novel methods for filling through holes with such fill compositions, and to resistors located in through holes and vias.Type: GrantFiled: June 6, 1995Date of Patent: February 27, 2001Assignee: International Business Machines CorporationInventors: Roy Lynn Arldt, Christina Marie Boyko, Burtran Joe Cayson, Richard Michael Kozlowski, Joseph Duane Kulesza, John Matthew Lauffer, Philip Chihchau Liu, Voya Rista Markovich, Issa Said Mahmoud, James Francis Muska, Kostas Papathomas, Joseph Gene Sabia, Richard Anthony Schumacher
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Patent number: 6134772Abstract: The present invention permits solder joints to be made directly to via and through holes without the solder being wicked into the vias or through holes, by filling plated through holes with an epoxy or cyanate fill composition. When cured and overplated, the fill composition provides support for the solder joint and provides a flat solderable surface for the inter-connection. In certain embodiments, the cured fill compositions, offer a further advantage of being conductive. The invention also relates to several novel methods for filling through holes with such fill compositions, and to resistors located in through holes and vias.Type: GrantFiled: December 18, 1998Date of Patent: October 24, 2000Assignee: International Business Machines CorporationInventors: Roy Lynn Arldt, Christina Marie Boyko, Burtran Joe Cayson, Richard Michael Kozlowski, Joseph Duane Kulesza, John Matthew Lauffer, Philip Chihchau Liu, Voya Rista Markovich, Issa Said Mahmoud, James Francis Muska, Kostas Papathomas, Joseph Gene Sabia, Richard Anthony Schumacher
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Patent number: 5999371Abstract: An actuator latch for latching an actuator of a disc drive having a rotating disc that induces airflow when the disc drive is operational, the actuator latch having a shaft supported by a baseplate, the shaft supporting a plurality of vanes to rotate the shaft in response to airflow generated by disc rotation. A locking member is operably engaged with the shaft and moveable thereby to a latched position and to an unlatched position, the actuator being secured by the locking member in the latched position and the actuator being released to move freely in the unlatched position. The locking member is caused to be positioned in the unlatched position when airflow rotates the vanes and shaft, and a biasing member reverse rotates the shaft when the airflow ceases, thus returning the locking member to the latched position when the disc drive becomes non-operational.Type: GrantFiled: January 30, 1998Date of Patent: December 7, 1999Assignee: Seagate Technology, Inc.Inventors: Roy Lynn Wood, Ryan Todd Ratliff, Nigel Frank Misso
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Patent number: 5907453Abstract: Apparatus and method for enhancing the convective cooling of a voice coil motor (VCM) of a disc drive. A portion of an air flow established by the rotation of a disc of the disc drive is diverted from the disc and is directed through a channel to the VCM. In one embodiment, an air foil is provided to support first and second magnetic paths of the VCM, the air foil having a shroud surface adjacent portions of the circumference of the disc and a diverter surface angularly extending from the shroud surface, the diverter surface diverting the air to the VCM. Alternatively, a base deck of the disc drive is provided with a shroud circumferentially adjacent portions of the disc and the channel extends through the shroud to direct the air from the disc to the VCM.Type: GrantFiled: July 8, 1997Date of Patent: May 25, 1999Assignee: Seagate Technology, Inc.Inventors: Roy Lynn Wood, Phillip R. Ridenour, Steven S. Eckerd, Carl Fred Adams
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Patent number: 5859358Abstract: Apparatus and method for measuring the maximum static friction force and the kinetic friction force between the heads of a disc drive and discs adjacent the heads. The disc drive is rotated by a computer controlled spin-up motor which provides constant angular acceleration of the disc drive. Voltages at the ends of the windings of a spindle motor of the disc drive are sampled to detect the angular acceleration at which disc rotation relative to the heads begins, from which the static friction force and the kinetic friction force are determined. The angular acceleration of the disc drive is monitored through the sampling of velocity commands used to control the angular acceleration of the disc drive, or through the use of an accelerometer mounted with respect to the disc drive.Type: GrantFiled: April 30, 1997Date of Patent: January 12, 1999Assignee: Seagate Technology, Inc.Inventors: Roy Lynn Wood, Steven S. Eckerd
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Patent number: 5766670Abstract: The present invention permits solder joints to be made directly to via and through holes without the solder being wicked into the vias or through holes, by filling plated through holes with an epoxy or cyanate fill composition. When cured and overplated, the fill composition provides support for the solder joint and provides a flat solderable surface for the inter-connection. In certain embodiments, the cured fill compositions, offer a further advantage of being conductive. The invention also relates to several novel methods for filling through holes with such fill compositions, and to resistors located in through holes and vias.Type: GrantFiled: November 17, 1993Date of Patent: June 16, 1998Inventors: Roy Lynn Arldt, Christina Marie Boyko, Burtran Joe Cayson, Richard Michael Kozlowski, Joseph Duane Kulesza, John Matthew Lauffer, Philip Chihchau Liu, Voya Rista Markovich, Issa Said Mahmoud, James Francis Muska, Kostas Papathomas, Joseph Gene Sabia, Richard Anthony Schumacher