Patents by Inventor Charles A. Liter

Charles A. Liter 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: 10726663
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: July 28, 2020
    Assignee: ARISTOCRAT TECHNOLOGIES AUSTRALIA PTY LIMITED
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Patent number: 10726662
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: July 28, 2020
    Assignee: ARISTOCRAT TECHNOLOGIES AUSTRALIA PTY LIMITED
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Publication number: 20200168032
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Publication number: 20200160652
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Publication number: 20200160651
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Patent number: 10573119
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: February 25, 2020
    Assignee: ARISTOCRAT TECHNOLOGIES AUSTRALIA PTY LIMITED
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Publication number: 20190311570
    Abstract: A brushless motor system for use with a mechanical reel gaming machine is provided. The brushless motor system includes a reel hub and a reel frame rotationally attached to a center shaft of the reel hub. The brushless motor system also includes a permanent magnet (PM) rotor attached to the reel frame and including a plurality of permanent magnets attached to the PM rotor. The brushless motor system further includes a stator including stator coils attached to the reel hub, the plurality of stator coils are mounted parallel to a surface of the PM rotor at a separation distance. The stator causes the PM rotor to rotate during activation of the stator without direct contact between the stator and the rotor, thereby causing the display of one or more symbols of the plurality of symbols during the wagering game based on the rotation.
    Type: Application
    Filed: April 5, 2018
    Publication date: October 10, 2019
    Inventors: William Lamb, Thach Du, Charles A. Liter
  • Patent number: 9949602
    Abstract: A vacuum cleaner including a base including a motor assembly and a wheel, wherein the wheel rotates around the motor assembly about an axis of rotation, the wheel extends radially outward from the motor assembly, and a portion of the motor assembly intersects a plane defined by the wheel perpendicular to the axis of rotation.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: April 24, 2018
    Assignee: Techtronic Floor Care Technology Limited
    Inventors: Charles J. Morgan, Victor B. McClearen, Ernest M. Chavana, Jr., Bruce M. Kiern, Charles A. Liter, George V. Hibbs, Dennis T. Lamb, Timothy Kolody, Christopher M. Paterson
  • Publication number: 20150196180
    Abstract: A vacuum cleaner including a base having an agitator housing including an air outlet. The base further includes a volute including a volute air inlet disposed substantially parallel to the agitator housing and a volute air outlet disposed substantially orthogonal to the agitator housing. An air duct connects the volute air inlet and the air outlet of the agitator housing and the air outlet of the agitator housing and the volute air outlet are substantially collinear.
    Type: Application
    Filed: February 10, 2015
    Publication date: July 16, 2015
    Inventors: Charles J. Morgan, Victor B. McClearen, Ernest M. Chavana, JR., Bruce M. Kiern, Charles A. Liter, George V. Hibbs, Dennis T. Lamb, Timothy Kolody, Christopher M. Paterson
  • Publication number: 20150101145
    Abstract: A vacuum cleaner including a base including a motor assembly and a wheel, wherein the wheel rotates around the motor assembly about an axis of rotation, the wheel extends radially outward from the motor assembly, and a portion of the motor assembly intersects a plane defined by the wheel perpendicular to the axis of rotation.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Charles J. Morgan, Victor B. McClearen, Ernest M. Chavana, JR., Bruce M. Kiern, Charles A. Liter, George V. Hibbs, Dennis T. Lamb, Timothy Kolody, Christopher M. Paterson
  • Publication number: 20070152677
    Abstract: A method and apparatus for detecting concealed surveillance devices coupled to a transmission line uses either a time domain or frequency domain reflectometry operation to locate any impedance anomalies on the transmission line and a non-linear junction detection operation to classify the located impedance anomalies as semiconductor or non-semiconductor based anomalies. The reflectometry operation utilizes the reflection of a test signal to determine the distance to any reflecting impedance anomalies on the transmission line that may be indicative of an electronic device being coupled to the transmission line. The non-linear junction detection operation then compares the amplitudes of re-radiated second and third harmonics of a transmitted fundamental frequency signal to determine if the reflecting impedance anomalies are the result of a semiconductor based non-linear junction. A DC bias voltage and a balanced load may be added to the transmission line to enhance the line's response to the test signals.
    Type: Application
    Filed: March 7, 2007
    Publication date: July 5, 2007
    Inventors: Bruce Barsumian, Thomas Jones, Charles Liter
  • Patent number: 7212008
    Abstract: An apparatus for detecting concealed surveillance devices coupled to a transmission line uses either a time domain or frequency domain reflectometry operation to locate any impedance anomalies on the transmission line and a non-linear junction detection operation to classify the located impedance anomalies as semiconductor or non-semiconductor based anomalies. The reflectometry operation utilizes the reflection of a test signal to determine the distance to any reflecting impedance anomalies on the transmission line that may be indicative of an electronic device being coupled to the transmission line. The non-linear junction detection operation then compares the amplitudes of re-radiated second and third harmonics of a transmitted fundamental frequency signal to determine if the reflecting impedance anomalies are the result of a semiconductor based non-linear junction. A DC bias voltage and a balanced load may be added to the transmission line to enhance the line's response to the test signals.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: May 1, 2007
    Inventors: Bruce R. Barsumian, Thomas H. Jones, Charles A. Liter
  • Patent number: D680287
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: April 16, 2013
    Assignee: Oreck Holdings LLC
    Inventors: Charles J. Morgan, Charles A. Liter, Jonathan Overholt, Bruce Kiern
  • Patent number: D681291
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: April 30, 2013
    Assignee: Oreck Holdings, LLC
    Inventors: Charles J. Morgan, Charles A. Liter, Jonathan Overholt, Bruce Kiern