Patents by Inventor John A. Petti

John A. Petti 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).

  • Patent number: 9734009
    Abstract: A data storage device includes a controller and a non-volatile memory coupled to the controller. The controller is configured to generate first parity information based on first data and to generate second parity information based on second data. The non-volatile memory is configured to store the first data and the second data. The data storage device also includes a buffer configured to store the first parity information. The controller is further configured to generate joint parity information associated with the first data and the second data in response to a combined data size of the first data and the second data satisfying a threshold.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 15, 2017
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Xinde Hu, Christopher John Petti, Eran Sharon, Idan Alrod, Ariel Navon
  • Publication number: 20170102993
    Abstract: A data storage device includes a controller and a non-volatile memory coupled to the controller. The controller is configured to generate first parity information based on first data and to generate second parity information based on second data. The non-volatile memory is configured to store the first data and the second data. The data storage device also includes a buffer configured to store the first parity information. The controller is further configured to generate joint parity information associated with the first data and the second data in response to a combined data size of the first data and the second data satisfying a threshold.
    Type: Application
    Filed: October 8, 2015
    Publication date: April 13, 2017
    Inventors: XINDE HU, CHRISTOPHER JOHN PETTI, ERAN SHARON, IDAN ALROD, ARIEL NAVON
  • Patent number: 9082786
    Abstract: A method of forming a memory cell is provided. The method includes forming a first pillar-shaped element that includes a first semiconductor material, forming a first opening self-aligned with the first pillar-shaped element, and depositing a second semiconductor material in the first opening to form a second pillar-shaped element above the first pillar-shaped element. Other aspects are also provided.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: July 14, 2015
    Assignee: SANDISK 3D LLC
    Inventors: Kang-Jay Hsia, Calvin K. Li, Christopher John Petti
  • Publication number: 20140117514
    Abstract: A method of forming a memory cell is provided. The method includes forming a first pillar-shaped element that includes a first semiconductor material, forming a first opening self-aligned with the first pillar-shaped element, and depositing a second semiconductor material in the first opening to form a second pillar-shaped element above the first pillar-shaped element. Other aspects are also provided.
    Type: Application
    Filed: December 24, 2013
    Publication date: May 1, 2014
    Applicant: SanDisk 3D LLC
    Inventors: Kang-Jay Hsia, Calvin K. Li, Christopher John Petti
  • Patent number: 6775900
    Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: August 17, 2004
    Assignee: General Electric Company
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Patent number: 6766572
    Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: July 27, 2004
    Assignee: General Electric Company
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Patent number: 6597081
    Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: July 22, 2003
    Assignee: General Electric Company
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Patent number: 6448686
    Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: September 10, 2002
    Assignee: General Electric Company
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Publication number: 20020070628
    Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.
    Type: Application
    Filed: January 17, 2002
    Publication date: June 13, 2002
    Applicant: General Electric Company
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Publication number: 20020070629
    Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 13, 2002
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Publication number: 20020070631
    Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.
    Type: Application
    Filed: February 13, 2002
    Publication date: June 13, 2002
    Applicant: General Electric Company
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Publication number: 20020070630
    Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 13, 2002
    Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
  • Patent number: 5860490
    Abstract: An ascending and descending device, or ladder, having a single central mast and a hand and two foot supports axially slidably engaging the mast. Each hand and foot support has a spring biased clutch normally preventing axial motion of its associated support along the mast, and a lever for releasing the hand or foot support to move along the mast. The hand support has weight bearing platforms, or grips, projecting to both sides of the mast. Each foot support projects to one side of the mast. The foot supports are tethered together to limit the distance by which they become separated when lowering one foot support. The mast has at its bottom end a base having folding legs. The mast selectively receives at its top end a pronged support for engaging the roof of a building and a chair to enable a person to remain seated above the ground. The chair has a safety tie for securing the chair to a tree.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: January 19, 1999
    Inventors: John A. Petti, Donald J. Long