Patents by Inventor Mira K. Sahney

Mira K. Sahney 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: 7703363
    Abstract: An apparatus for generating and manipulating a high-pressure fluid jet includes an assembly coupled to a motion assembly that imparts motion to the assembly along one or more axes. The motion assembly includes two motors coupled together to form a gimbal wrist, each motor having an axis of rotation. The two axes of rotation of the two motors can be perpendicular to each other, but are not necessarily aligned with the manipulator's axes of motion. The high-pressure fluid assembly incorporates a swivel that can rotate about two axes which may be parallel to the two motors' axes of rotation, allowing the high-pressure tubing contained therein to follow the motion imparted by the gimbal wrist of the motion assembly.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: April 27, 2010
    Assignee: Flow International Corporation
    Inventors: Michael Knaupp, Charles D. Burnham, Mohamed A. Hashish, Robert J. Mann, Mira K. Sahney, C. David Bader, Andreas Meyer, Sean A. Vaughan, Thomas A. Pesek, Jonathan M. Stewart
  • Patent number: 7464630
    Abstract: An apparatus for generating and manipulating a high-pressure fluid jet includes an end effector assembly coupled to a manipulator that imparts motion to the end effector. The end effector assembly includes a cutting head coupled to a source of high-pressure fluid and to a source of abrasive. A motion assembly is coupled to the cutting head via a clamp positioned around the cutting head. A nozzle body assembly is removably coupled to the cutting head assembly, which may be separated from the cutting head assembly to allow access to the orifice, without removing the cutting head assembly from the clamp. The clamp has a quick release mechanism and an alignment member. The motion assembly includes two motors coupled together to form a gimbal wrist, each motor having a horizontal axis of rotation. The two axes of rotation are perpendicular to each other, but are not necessarily aligned with the manipulator's axes of motion.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: December 16, 2008
    Assignee: Flow International Corporation
    Inventors: Michael Knaupp, Charles D. Burnham, Mohamed A. Hashish, Robert J. Mann, Mira K. Sahney, C. David Bader, Andreas Meyer, Sean A. Vaughan, Thomas A. Pesek, Jonathan M. Stewart
  • Patent number: 6996452
    Abstract: Methods and systems for automating the control of fluid jet orientation parameters are provided. Example embodiments provide a Dynamic Waterjet Control System (a “DWCS”) to dynamically control the orientation of the jet relative to the material being cut as a function of speed and other process parameters. Orientation parameters include, for example, the three dimensional orientation parameters of the jet, such as standoff compensation values and taper and lead angles of the cutting head. In one embodiment, the DWCS uses a set of predictive models to determine these orientation parameters. The DWCS preferably comprises a motion program generator/kernel, a user interface, one or more replaceable orientation and process models, and a communications interface to a fluid jet apparatus controller. In one embodiment the DWCS embedded in the controller and performs a “look-ahead” procedure to automatically control cutting head orientation.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: February 7, 2006
    Assignee: Flow International Corporation
    Inventors: Glenn A. Erichsen, Jiannan Zhou, Mira K. Sahney, Michael Knaupp, Charles D. Burnham, Mohamed A. Hashish
  • Publication number: 20040236461
    Abstract: Methods and systems for automating the control of fluid jet orientation parameters are provided. Example embodiments provide a Dynamic Waterjet Control System (a “DWCS”) to dynamically control the orientation of the jet relative to the material being cut as a function of speed and other process parameters. Orientation parameters include, for example, the x-y position of the jet along the cutting path, as well as three dimensional orientation parameters of the jet, such as standoff compensation values and taper and lead angles of the cutting head. In one embodiment, the DWCS uses a set of predictive models to determine these orientation parameters. The DWCS preferably comprises a motion program generator/kernel, a user interface, one or more replaceable orientation and process models, and a communications interface to a fluid jet apparatus controller. Optionally the DWCS also includes a CAD module for designing the target piece.
    Type: Application
    Filed: March 4, 2004
    Publication date: November 25, 2004
    Applicant: Flow International Corporation
    Inventors: Glenn A. Erichsen, Jiannan Zhou, Mira K. Sahney, Michael Knaupp, Charles D. Burnham, Mohamed A. Hashish
  • Patent number: 6766216
    Abstract: Methods and systems for automating the control of fluid jet orientation parameters are provided. Example embodiments provide a Dynamic Waterjet Control System (a “DWCS”) to dynamically control the orientation of the jet relative to the material being cut as a function of speed and other process parameters. Orientation parameters include, for example, the x-y position of the jet along the cutting path, as well as three dimensional orientation parameters of the jet, such as standoff compensation values and taper and lead angles of the cutting head. In one embodiment, the DWCS uses a set of predictive models to determine these orientation parameters. The DWCS preferably comprises a motion program generator/kernel, a user interface, one or more replaceable orientation and process models, and a communications interface to a fluid jet apparatus controller. Optionally the DWCS also includes a CAD module for designing the target piece.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: July 20, 2004
    Assignee: Flow International Corporation
    Inventors: Glenn A. Erichsen, Jiannan Zhou, Mira K. Sahney, Michael Knaupp
  • Publication number: 20030167104
    Abstract: Methods and systems for automating the control of fluid jet orientation parameters are provided. Example embodiments provide a Dynamic Waterjet Control System (a "DWCS") to dynamically control the orientation of the jet relative to the material being cut as a function of speed and other process parameters. Orientation parameters include, for example, the x-y position of the jet along the cutting path, as well as three dimensional orientation parameters of the jet, such as standoff compensation values and taper and lead angles of the cutting head. In one embodiment, the DWCS uses a set of predictive models to determine these orientation parameters. The DWCS preferably comprises a motion program generator / kernel, a user interface, one or more replaceable orientation and process models, and a communications interface to a fluid jet apparatus controller. Optionally the DWCS also includes a CAD module for designing the target piece.
    Type: Application
    Filed: August 27, 2001
    Publication date: September 4, 2003
    Applicant: Flow International Corporation
    Inventors: Glenn A. Erichsen , Jiannan Zhou , Mira K. Sahney , Michael Knaupp
  • Publication number: 20030065424
    Abstract: Methods and systems for automating the control of fluid jet orientation parameters are provided. Example embodiments provide a Dynamic Waterjet Control System (a “DWCS”) to dynamically control the orientation of the jet relative to the material being cut as a function of speed and other process parameters. Orientation parameters include, for example, the x-y position of the jet along the cutting path, as well as three dimensional orientation parameters of the jet, such as standoff compensation values and taper and lead angles of the cutting head. In one embodiment, the DWCS uses a set of predictive models to determine these orientation parameters. The DWCS preferably comprises a motion program generator/kernel, a user interface, one or more replaceable orientation and process models, and a communications interface to a fluid jet apparatus controller. Optionally the DWCS also includes a CAD module for designing the target piece.
    Type: Application
    Filed: August 27, 2001
    Publication date: April 3, 2003
    Applicant: Flow International Corporation
    Inventors: Glenn A. Erichsen, Jiannan Zhou, Mira K. Sahney, Michael Knaupp
  • Publication number: 20030037650
    Abstract: An apparatus for generating and manipulating a high-pressure fluid jet includes an end effector assembly coupled to a manipulator that imparts motion to the end effector along one or more axes. The end effector assembly includes a cutting head coupled to a source of high-pressure fluid and to a source of abrasive, to generate a high-pressure abrasive fluid jet. A motion assembly is coupled to the cutting head via a clamp positioned around the cutting head. A nozzle body assembly is removably coupled to the cutting head assembly upstream of the orifice. The nozzle body assembly may be separated from the cutting head assembly to allow access to the orifice, without removing the cutting head assembly from the clamp. The clamp has a quick release mechanism, allowing an operator to open the clamp by hand to allow access to the cutting head, and an alignment member is provided on an inner surface of the clamp to accurately locate the cutting head in the clamp.
    Type: Application
    Filed: August 27, 2001
    Publication date: February 27, 2003
    Applicant: Flow International Corporation
    Inventors: Michael Knaupp, Charles D. Burnham, Mohamed A. Hashish, Robert J. Mann, Mira K. Sahney, C. David Bader, Andreas Meyer, Sean A. Vaughan, Thomas A. Pesek, Jonathan M. Stewart