Patents by Inventor Sivaraj Sivarama Krishnan
Sivaraj Sivarama Krishnan 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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Publication number: 20040019402Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backstage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.Type: ApplicationFiled: September 18, 2002Publication date: January 29, 2004Applicants: AMADA AMERICA, INC., AMADA COMPANY, LTD.Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
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Patent number: 6507767Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backstage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.Type: GrantFiled: August 16, 2001Date of Patent: January 14, 2003Assignees: Amada America, Inc., Amada Company, Ltd.Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
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Patent number: 6493607Abstract: A computerized method/system is provided for planning motion of a robot within a free space confined by obstacles, from an initial position to a goal position. In executing the method/system, a plan is generated so that the robot can hold and maneuver a workpiece throughout a sequence of bending operations to be performed by a bending apparatus. A plurality of proposed movements to be made by the robot are proposed for an mth movement within a sequence of movements, and at least a portion of the robot and the obstacles that confine the free space are modeled. A determination is made as to whether a collision will occur between the robot and an obstacle for each proposed movement, and a plan is generated including the sequence of movements by choosing for each movement in the sequence of movements, a proposed movement that will not result in a collision and that will bring the robot closer to the goal position.Type: GrantFiled: September 25, 1998Date of Patent: December 10, 2002Assignees: Amada America, Inc., Amada Company, Ltd.Inventors: David Alan Bourne, Sivaraj Sivarama Krishnan
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Publication number: 20020016647Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backstage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.Type: ApplicationFiled: August 16, 2001Publication date: February 7, 2002Applicant: AMADA AMERICA, Inc.Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
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Patent number: 6341243Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backgage guide member which guides placement of a tooling stage along the die rail the bending apparatus.Type: GrantFiled: December 8, 1998Date of Patent: January 22, 2002Assignees: Amada America, Inc., Amada Company, Ltd.Inventors: David Allan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
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Patent number: 5969973Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backgage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.Type: GrantFiled: February 9, 1995Date of Patent: October 19, 1999Assignees: Amada Company, Ltd., Amada America, Inc.Inventors: David Alan Bourne, Duane Thomas Williams, Kyoung Hung Kim, Sivaraj Sivarama Krishnan, Kensuke Hazama
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Patent number: 5889926Abstract: A computerized method/system is provided for planning motion of a robot within a free space confined by obstacles, from an initial position to a goal position. In executing the method/system, a plan is generated so that the robot can hold and maneuver a workpiece throughout a sequence of bending operations to be performed by a bending apparatus. A plurality of proposed movements to be made by the robot are proposed for an mth movement within a sequence of movements, and at least a portion of the robot and the obstacles that confine the free space are modeled. A determination is made as to whether a collision will occur between the robot and an obstacle for each proposed movement, and a plan is generated including the sequence of movements by choosing for each movement in the sequence of movements, a proposed movement that will not result in a collision and that will bring the robot closer to the goal position.Type: GrantFiled: July 22, 1997Date of Patent: March 30, 1999Assignees: Amada America, Inc., Amada Company, Ltd.Inventors: David Alan Bourne, Sivaraj Sivarama Krishnan
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Patent number: 5835684Abstract: A computerized method/system is provided for planning motion of a robot within a free space confined by obstacles, from an initial position to a goal position. In executing the method/system, a plan is generated so that the robot can hold and maneuver a workpiece throughout a sequence of bending operations to be performed by a bending apparatus. A plurality of proposed movements to be made by the robot are proposed for an mth movement within a sequence of movements, and at least a portion of the robot and the obstacles that confine the free space are modeled. A determination is made as to whether a collision will occur between the robot and an obstacle for each proposed movement, and a plan is generated including the sequence of movements by choosing for each movement in the sequence of movements, a proposed movement that will not result in a collision and that will bring the robot closer to the goal position.Type: GrantFiled: November 9, 1994Date of Patent: November 10, 1998Assignees: Amada Company, Ltd., Amada America, Inc.Inventors: David Alan Bourne, Sivaraj Sivarama Krishnan