Patents by Inventor Darryl W. Yeakley
Darryl W. Yeakley 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: 8422173Abstract: A dual pole linear actuator includes a dual pole magnet assembly that is moved by providing a bi-directional analog DC control signal to a dual wound coil. The dual pole magnet assembly includes a permanent magnet that is flanked by top and bottom pole pieces. The dual wound coil is assembled to an actuator housing with a top part of the coil being wound in one rotary direction, while the bottom part of the coil is wound in the opposite rotary direction.Type: GrantFiled: January 5, 2011Date of Patent: April 16, 2013Assignee: Oracle International CorporationInventors: Darryl W. Yeakley, Frank A. Goodknight
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Patent number: 8351145Abstract: A transducer positioning apparatus is provided that supports a read/write head on a data storage machine and biases the head against rotation. The transducer positioning apparatus may comprise a base that includes a linear drive motor and a support frame to which the read/write head is secured. The support frame is reciprocally driven by the linear drive motor relative to the base. A magnetic coupling is provided between the base and the support frame that resists movement of the frame other than the reciprocal movement of the support frame relative to the base. A method is also disclosed for magnetically biasing a movable head of a transducer against rotation.Type: GrantFiled: April 18, 2012Date of Patent: January 8, 2013Assignee: Oracle America, Inc.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Publication number: 20120206833Abstract: A transducer positioning apparatus is provided that supports a read/write head on a data storage machine and biases the head against rotation. The transducer positioning apparatus may comprise a base that includes a linear drive motor and a support frame to which the read/write head is secured. The support frame is reciprocally driven by the linear drive motor relative to the base. A magnetic coupling is provided between the base and the support frame that resists movement of the frame other than the reciprocal movement of the support frame relative to the base. A method is also disclosed for magnetically biasing a movable head of a transducer against rotation.Type: ApplicationFiled: April 18, 2012Publication date: August 16, 2012Applicant: Oracle America, Inc., formerly known as Sun Microsystems, Inc.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Publication number: 20120170153Abstract: A dual pole linear actuator includes a dual pole magnet assembly that is moved by providing a bi-directional analog DC control signal to a dual wound coil. The dual pole magnet assembly includes a permanent magnet that is flanked by top and bottom pole pieces. The dual wound coil is assembled to an actuator housing with a top part of the coil being wound in one rotary direction, while the bottom part of the coil is wound in the opposite rotary direction.Type: ApplicationFiled: January 5, 2011Publication date: July 5, 2012Applicant: ORACLE INTERNATIONAL CORPORATIONInventors: Darryl W. Yeakley, Frank A. Goodknight
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Patent number: 8199440Abstract: A transducer positioning apparatus is provided that supports a read/write head on a data storage machine and biases the head against rotation. The transducer positioning apparatus may comprise a base that includes a linear drive motor and a support frame to which the read/write head is secured. The support frame is reciprocally driven by the linear drive motor relative to the base. A magnetic coupling is provided between the base and the support frame that resists movement of the frame other than the reciprocal movement of the support frame relative to the base. A method is also disclosed for magnetically biasing a movable head of a transducer against rotation.Type: GrantFiled: April 15, 2011Date of Patent: June 12, 2012Assignee: Oracle International CorporationInventors: Darryl W. Yeakley, Frank A. Goodknight
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Patent number: 8059358Abstract: A method of retaining a transducer for a digital storage apparatus that reads and writes data to a tape as the tape is moved in a tape drive path across the transducer. According to the method a head assembly is attached to the base to be movable relative to the base in a linear path that is perpendicular to the tape drive path. Movement of the head assembly is guided on a track that is partially defined by the head and partially defined by the base. At least two balls are disposed in the track between the base and the head assembly. A magnetic coupling retains the balls within the track. A linear motor operatively engages the head assembly to move the head assembly to follow the tape.Type: GrantFiled: May 12, 2011Date of Patent: November 15, 2011Assignee: Oracle International CorporationInventors: Darryl W. Yeakley, Frank A. Goodknight
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Publication number: 20110211278Abstract: A method of retaining a transducer for a digital storage apparatus that reads and writes data to a tape as the tape is moved in a tape drive path across the transducer. According to the method a head assembly is attached to the base to be movable relative to the base in a linear path that is perpendicular to the tape drive path. Movement of the head assembly is guided on a track that is partially defined by the head and partially defined by the base. At least two balls are disposed in the track between the base and the head assembly. A magnetic coupling retains the balls within the track. A linear motor operatively engages the head assembly to move the head assembly to follow the tape.Type: ApplicationFiled: May 12, 2011Publication date: September 1, 2011Applicant: Oracle America, Inc. , Formerly known as Sun Microsystems, Inc.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Publication number: 20110188153Abstract: A transducer positioning apparatus is provided that supports a read/write head on a data storage machine and biases the head against rotation. The transducer positioning apparatus may comprise a base that includes a linear drive motor and a support frame to which the read/write head is secured. The support frame is reciprocally driven by the linear drive motor relative to the base. A magnetic coupling is provided between the base and the support frame that resists movement of the frame other than the reciprocal movement of the support frame relative to the base. A method is also disclosed for magnetically biasing a movable head of a transducer against rotation.Type: ApplicationFiled: April 15, 2011Publication date: August 4, 2011Applicant: Oracle America, Inc.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Patent number: 7965472Abstract: A transducer for a digital storage apparatus that reads and writes data to a tape as the tape is moved in a tape drive path across the transducer. The transducer comprises a base and a head assembly that is attached to the base and movable relative to the base in a linear path that is perpendicular to the tape drive path. A guide assembly guides the movement of the head assembly that has a track that is partially defined by the head and partially defined by the base. The guide assembly includes at least two balls that are disposed in the track between the base and the head assembly. A magnetic coupling retains the balls within the track. A linear motor operatively engages the head assembly to move the head assembly to follow the tape.Type: GrantFiled: April 11, 2007Date of Patent: June 21, 2011Assignee: Oracle America, Inc.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Patent number: 7948715Abstract: A head positioning assembly having a first carriage assembly, a second carriage assembly, and an actuator. The second carriage assembly has a head and is coupled to the first carriage assembly by a first flexible member. The first and second carriage assemblies may be actuated to position the head when sufficient force is provided by the actuator.Type: GrantFiled: November 2, 2007Date of Patent: May 24, 2011Assignee: Oracle America, Inc.Inventors: Darryl W. Yeakley, Matthew K. Tucker, Steven G. Suttle
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Patent number: 7944649Abstract: A transducer positioning apparatus is provided that supports a read/write head on a data storage machine and biases the head against rotation. The transducer positioning apparatus may comprise a base that includes a linear drive motor and a support frame to which the read/write head is secured. The support frame is reciprocally driven by the linear drive motor relative to the base. A magnetic coupling is provided between the base and the support frame that resists movement of the frame other than the reciprocal movement of the support frame relative to the base. A method is also disclosed for magnetically biasing a movable head of a transducer against rotation.Type: GrantFiled: April 11, 2007Date of Patent: May 17, 2011Assignee: Oracle America, Inc.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Patent number: 7646558Abstract: In one embodiment of a system and method for positioning a transducer head, the transducer head includes a first group of elements for reading data from or writing data to a set of tracks on a storage medium, and a second group of elements for reading data from or writing data to a set of tracks on a storage medium. A device supplies electrical power to the first group of elements to read data from or write data to a first position on the storage medium, and supplies electrical power to the second group of elements to read data from or write data to a second position on the storage medium different than the first position without coarse movement of the transducer head relative to the storage medium.Type: GrantFiled: January 23, 2007Date of Patent: January 12, 2010Assignee: Sun Microsystems, Inc.Inventors: Darryl W. Yeakley, William J. Vanderheyden
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Publication number: 20090116135Abstract: A head positioning assembly having a first carriage assembly, a second carriage assembly, and an actuator. The second carriage assembly has a head and is coupled to the first carriage assembly by a first flexible member. The first and second carriage assemblies may be actuated to position the head when sufficient force is provided by the actuator.Type: ApplicationFiled: November 2, 2007Publication date: May 7, 2009Applicant: SUN MICROSYSTEMS, INC.Inventors: Darryl W. Yeakley, Matthew K. Tucker, Steven G. Suttle
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Publication number: 20080253029Abstract: A transducer for a digital storage apparatus that reads and writes data to a tape as the tape is moved in a tape drive path across the transducer. The transducer comprises a base and a head assembly that is attached to the base and movable relative to the base in a linear path that is perpendicular to the tape drive path. A guide assembly guides the movement of the head assembly that has a track that is partially defined by the head and partially defined by the base. The guide assembly includes at least two balls that are disposed in the track between the base and the head assembly. A magnetic coupling retains the balls within the track. A linear motor operatively engages the head assembly to move the head assembly to follow the tape. A method is provided for retaining a movable head of a transducer on a base of the transducer with a magnetic coupling.Type: ApplicationFiled: April 11, 2007Publication date: October 16, 2008Applicant: SUN MICROSYSTEMS, INC.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Publication number: 20080253031Abstract: A transducer positioning apparatus is provided that supports a read/write head on a data storage machine and biases the head against rotation. The transducer positioning apparatus may comprise a base that includes a linear drive motor and a support frame to which the read/write head is secured. The support frame is reciprocally driven by the linear drive motor relative to the base. A magnetic coupling is provided between the base and the support frame that resists movement of the frame other than the reciprocal movement of the support frame relative to the base. A method is also disclosed for magnetically biasing a movable head of a transducer against rotation.Type: ApplicationFiled: April 11, 2007Publication date: October 16, 2008Applicant: SUN MICROSYSTEMS, INC.Inventors: Darryl W. Yeakley, Frank A. Goodknight
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Patent number: 7426095Abstract: A media drive having a deck and a head positioning assembly. The deck has a first threaded hole. The head positioning assembly includes a baseplate having an aperture, a nut having a second threaded hole, and an adjustment screw having first and second threaded portions. The nut rotates about an axis of rotation and slides within the aperture to align the first and second threaded portions with the first and second threaded holes, respectively.Type: GrantFiled: November 30, 2005Date of Patent: September 16, 2008Assignee: Storage Technology CorporationInventors: Steve Suttle, Darryl W. Yeakley
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Publication number: 20080174904Abstract: In one embodiment of a system and method for positioning a transducer head, the transducer head includes a first group of elements for reading data from or writing data to a set of tracks on a storage medium, and a second group of elements for reading data from or writing data to a set of tracks on a storage medium. A device supplies electrical power to the first group of elements to read data from or write data to a first position on the storage medium, and supplies electrical power to the second group of elements to read data from or write data to a second position on the storage medium different than the first position without coarse movement of the transducer head relative to the storage medium.Type: ApplicationFiled: January 23, 2007Publication date: July 24, 2008Applicant: SUN MICROSYSTEMS, INC.Inventors: Darryl W. Yeakley, William J. Vanderheyden