Patents Assigned to Anorad Corporation
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Patent number: 7336007Abstract: A system and method are disclosed for controlling an integrated rotary-linear actuator system that may be coupled to a network via a network interface. The integrated rotary-linear actuator system includes a control system and a rotary-linear actuator having a moveable plunger and associated coils. The coils may be energized to interact with associated magnets to effect corresponding movement of the plunger, which may include rotation and/or linear movement. The network interface facilitates receipt of control information at the control system of the integrated rotary-linear actuator system from the network. The control system may control an amplifier to energize the coils based on the control information.Type: GrantFiled: April 9, 2007Date of Patent: February 26, 2008Assignee: Anorad CorporationInventors: Anwar Chitayat, Mustansir Faizullabhoy
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Patent number: 7291953Abstract: A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic field distribution associated with the magnets. The back iron geometry provides for reduced mass, reduced leakage flux, and high flux densities to improve performance of a linear motor that employs such a magnet assembly. Additionally, the back iron can be a magnetically conductive annular ring, such as is employed in a rotary motor. Moreover, the magnets can be arranged in a manner that generates a Halbach array to increase force output in a desired direction while canceling stray magnetic fields in other directions. Similar reduced-mass designs can be employed in conjunction with a back iron of a fixed cross-section and magnets of variable thicknesses, variable lengths, and/or variable widths.Type: GrantFiled: May 4, 2006Date of Patent: November 6, 2007Assignee: Anorad CorporationInventors: James F. Smith, Nandakumar Thirunarayan
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Patent number: 7287638Abstract: A linear actuator, method manufacturing and method of using the linear actuator are provided. The invention includes a linear actuator having a plurality of annular magnets surrounded by a bobbin assembly having a coil system. The plurality of annular magnets can be arranged with alternating polarity. The bobbin assembly can be movable along a longitudinal axis extending through the plurality of annular magnets and can further comprise a coil system having coils arranged to, when energized, interact with at least one of the plurality of annular magnets to move the bobbin in a linear mode. Thus, by selectively energizing one or more of the coils, a motive force can be generated on the bobbin assembly by interacting with fields generated by the plurality of annular magnets.Type: GrantFiled: March 20, 2006Date of Patent: October 30, 2007Assignee: Anorad CorporationInventors: Frederick A. Sommerhalter, Jr., Nandakumar Thirunarayan
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Patent number: 7288872Abstract: A system that facilitates damping of mechanical vibration associated with machinery that is subject to such mechanical vibration. The system comprises machinery with at least one moveable part and a piezoelectric actuator that is selectively applied to the machinery. The piezoelectric actuator receives voltages and is employed to facilitate damping of mechanical vibration associated with the machinery.Type: GrantFiled: October 11, 2006Date of Patent: October 30, 2007Assignee: Anorad CorporationInventors: James F. Smith, Devarajan Rajaraman, Sachchit Ambaji Patil
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Patent number: 7262523Abstract: A wireless encoder system facilitates operation and control of a motor, such as linear motor. The system includes an encoder sensor moveable with a first part of the motor. The encoder sensor is operative to sense movement of the first part relative the second part and provide an encoder signal having an electrical characteristic indicative of the sensed movement. A transmitter, which is associated with the encoder sensor, is operative to transmit a wireless transmitter signal based on the encoder signal. A remote receiver that receives the wireless transmitter signal thus may determine position and/or movement of the first part of the motor relative to a second part of the motor.Type: GrantFiled: July 13, 2005Date of Patent: August 28, 2007Assignee: Anorad CorporationInventors: Mustansir Faizullabhoy, Anwar Chitayat
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Publication number: 20070176497Abstract: A system and method are disclosed for controlling an integrated rotary-linear actuator system that may be coupled to a network via a network interface. The integrated rotary-linear actuator system includes a control system and a rotary-linear actuator having a moveable plunger and associated coils. The coils may be energized to interact with associated magnets to effect corresponding movement of the plunger, which may include rotation and/or linear movement. The network interface facilitates receipt of control information at the control system of the integrated rotary-linear actuator system from the network. The control system may control an amplifier to energize the coils based on the control information.Type: ApplicationFiled: April 9, 2007Publication date: August 2, 2007Applicant: ANORAD CORPORATIONInventors: Anwar Chitayat, Mustansir Faizullabhoy
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Patent number: 7242126Abstract: An armature assembly that may be encapsulated and a corresponding method to encapsulate a motor assembly are disclosed. The armature assembly includes a core having slots in which one or more windings are disposed. An outer covering, such as a thermally conductive thermoplastic material, encapsulates at least a substantial portion of the armature assembly. Some of the encapsulating material extends within the slots so as to facilitate its attachment to the assembly and/or to inhibit movement of the windings relative to their associated slots.Type: GrantFiled: September 13, 2004Date of Patent: July 10, 2007Assignee: Anorad CorporationInventors: Gerald L Swift, Frederick A Sommerhalter, Jr., Robert A Syskowski
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Patent number: 7218017Abstract: A system and method are disclosed for controlling an integrated rotary-linear actuator system that may be coupled to a network via a network interface. The integrated rotary-linear actuator system includes a control system and a rotary-linear actuator having a moveable plunger and associated coils. The coils may be energized to interact with associated magnets to effect corresponding movement of the plunger, which may include rotation and/or linear movement. The network interface facilitates receipt of control information at the control system of the integrated rotary-linear actuator system from the network. The control system may control an amplifier to energize the coils based on the control information.Type: GrantFiled: March 26, 2001Date of Patent: May 15, 2007Assignee: Anorad CorporationInventors: Anwar Chitayat, Mustanzir Faizullabhoy
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Patent number: 7170241Abstract: A path module for a linear motor system includes a controller coupled to one or more amplifiers that are operative to control associated windings in the module. The controller receives control information via a communications link. The controller controls the amplifier based on the received control information so as to selectively energize the associated windings in the module. In one aspect, a plurality of such modules may be connected together to form a path along which one or more stages are moveable according to energization of the windings in the path.Type: GrantFiled: October 4, 2005Date of Patent: January 30, 2007Assignee: Anorad CorporationInventors: Mustansir Faizullabhoy, Anwar Chitayat, Joseph Cardamone
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Patent number: 7145271Abstract: A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic field distribution associated with the magnets. The back iron geometry provides for reduced mass, reduced leakage flux, and high flux densities to improve performance of a linear motor that employs such a magnet assembly.Type: GrantFiled: June 13, 2005Date of Patent: December 5, 2006Assignee: Anorad CorporationInventors: Nandakumar Thirunarayan, James F. Smith
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Patent number: 7138747Abstract: A system that facilitates damping of mechanical vibration associated with machinery that is subject to such mechanical vibration. The system comprises machinery with at least one moveable part and a piezoelectric actuator that is selectively applied to the machinery. The piezoelectric actuator receives voltages and is employed to facilitate damping of mechanical vibration associated with the machinery.Type: GrantFiled: July 29, 2004Date of Patent: November 21, 2006Assignee: Anorad CorporationInventors: James F. Smith, Devarajan Rajaraman, Sachchit Ambaji Patil
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Publication number: 20060138872Abstract: A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic field distribution associated with the magnets. The back iron geometry provides for reduced mass, reduced leakage flux, and high flux densities to improve performance of a linear motor that employs such a magnet assembly.Type: ApplicationFiled: June 13, 2005Publication date: June 29, 2006Applicant: Anorad CorporationInventors: Nandakumar Thirunarayan, James Smith
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Patent number: 7040481Abstract: A linear actuator, method of manufacturing and method of using the linear actuator are provided. The invention includes a linear actuator having a plurality of annular magnets surrounded by a bobbin assembly having a coil system. The plurality of annular magnets can be arranged with alternating polarity. The bobbin assembly can be movable along a longitudinal axis extending through the plurality of annular magnets and can further comprise a coil system having coils arranged to, when energized, interact with at least one of the plurality of annular magnets to move the bobbin in a linear mode. Thus, by selectively energizing one or more of the coils, a motive force can be generated on the bobbin assembly by interacting with fields generated by the plurality of annular magnets.Type: GrantFiled: January 8, 2002Date of Patent: May 9, 2006Assignee: Anorad CorporationInventors: Frederick A. Sommerhalter, Jr., Nandakumar Thirunarayan
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Patent number: 7026732Abstract: A path for a linear motor system includes routing system between a trunk of the path and two or more branches. The routing system is operative to couple the trunk with a selected branch to enable a stage to travel between the trunk and the selected branch. The routing system includes armature windings that may be energized to effect movement of the stage in a desired direction between the trunk and the selected branch.Type: GrantFiled: June 4, 2004Date of Patent: April 11, 2006Assignee: Anorad CorporationInventors: Michael H. Backman, Frederick A. Sommerhalter, Jr., Mustansir A. Faizullabhoy, Anwar Chitayat
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Patent number: 6975081Abstract: A path module for a linear motor system includes a controller coupled to one or more amplifiers that are operative to control associated windings in the module. The controller receives control information via a communications link. The controller controls the amplifier based on the received control information so as to selectively energize the associated windings in the module. In one aspect, a plurality of such modules may be connected together to form a path along which one or more stages are moveable according to energization of the windings in the path.Type: GrantFiled: August 2, 2004Date of Patent: December 13, 2005Assignee: Anorad CorporationInventors: Mustansir Faizullabhoy, Anwar Chitayat, Joseph Cardamone
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Patent number: 6963148Abstract: A wireless encoder system facilitates operation and control of a motor, such as linear motor. The system includes an encoder sensor moveable with a first part of the motor. The encoder sensor is operative to sense movement of the first part relative the second part and provide an encoder signal having an electrical characteristic indicative of the sensed movement. A transmitter, which is associated with the encoder sensor, is operative to transmit a wireless transmitter signal based on the encoder signal. A remote receiver that receives the wireless transmitter signal thus may determine position and/or movement of the first part of the motor relative to a second part of the motor.Type: GrantFiled: January 24, 2005Date of Patent: November 8, 2005Assignee: Anorad CorporationInventors: Mustansir Faizullabhoy, Anwar Chitayat
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Patent number: 6922025Abstract: The present invention relates systems and methods for compensating for errors associated with a linear motion system. The systems and methods determines one or more errors associated with the linear motion system and adjusts or corrects an input drive signal associated with the linear motion system to compensate for the one or more errors. The one or more errors of the linear motion system can include cogging errors and ripple errors. The one or more errors can be measured using a measurement system or the one or more errors can be associated with selectable coefficients or parameters, such as standard errors, or device type errors stored in a library.Type: GrantFiled: February 19, 2003Date of Patent: July 26, 2005Assignee: Anorad CorporationInventor: James F. Smith
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Patent number: 6919653Abstract: A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic field distribution associated with the magnets. The back iron geometry provides for reduced mass, reduced leakage flux, and high flux densities to improve performance of a linear motor that employs such a magnet assembly.Type: GrantFiled: July 12, 2004Date of Patent: July 19, 2005Assignee: Anorad CorporationInventors: Nandakumar Thirunarayan, James F. Smith
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Patent number: 6876105Abstract: A wireless encoder system facilitates operation and control of a motor, such as linear motor. The system includes an encoder sensor moveable with a first part of the motor. The encoder sensor is operative to sense movement of the first part relative the second part and provide an encoder signal having an electrical characteristic indicative of the sensed movement. A transmitter, which is associated with the encoder sensor, is operative to transmit a wireless transmitter signal based on the encoder signal. A remote receiver that receives the wireless transmitter signal thus may determine position and/or movement of the first part of the motor relative to a second part of the motor.Type: GrantFiled: May 18, 2001Date of Patent: April 5, 2005Assignee: Anorad CorporationInventors: Mustansir Faizullabhoy, Anwar Chitayat
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Patent number: 6844651Abstract: An armature assembly that may be encapsulated and a corresponding method to encapsulate a motor assembly are disclosed. The armature assembly includes a core having slots in which one or more windings are disposed. An outer covering, such as a thermally conductive thermoplastic material, encapsulates at least a substantial portion of the armature assembly. Some of the encapsulating material extends within the slots so as to facilitate its attachment to the assembly and/or to inhibit movement of the windings relative to their associated slots.Type: GrantFiled: May 30, 2001Date of Patent: January 18, 2005Assignee: Anorad CorporationInventors: Gerald L. Swift, Frederick A. Sommerhalter, Jr., Robert A. Syskowski