Patents by Inventor Charles Lee Brown, Jr.

Charles Lee Brown, Jr. 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).

  • Actuator for security gates
    Patent number: 10968584
    Abstract: A security gate actuator includes a main ball screw, a main ball nut, and a drive shaft stage. The main ball screw may further include a circular channel disposed on an outer surface of the main ball screw and at least one drive ball disposed in the circular channel. The main ball nut may be disposed on the main threads of the main ball screw and configured to translate rotational motion of the main ball screw to linear motion of the main ball nut. The drive shaft stage may include a drive shaft end and a drive shaft tube attached to the drive shaft end, the drive shaft end coupled to the main ball nut. The drive ball may push against the drive shaft tube to translate the rotational motion of the main ball screw to rotational motion of the drive shaft tube.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: April 6, 2021
    Assignee: K12 Defense Consultants, LLC
    Inventors: David Russell Gardner, Charles Lee Brown, Jr.
  • Actuator for security gates
    Patent number: 10738867
    Abstract: A security gate actuator includes a main ball screw, a main ball nut, a drive shaft stage, and at least a drive ball. The main ball screw may further include a circular channel disposed on an outer surface of the main ball screw. The main ball nut may be disposed on the main threads of the main ball screw and configured to translate rotational motion of the main ball screw to linear motion of the main ball nut. The drive shaft stage may include a drive shaft end and a drive shaft tube attached to the drive shaft end, the drive shaft end coupled to the main ball nut. The drive ball may be disposed in the circular channel of the main ball screw and push against the drive shaft tube to translate the rotational motion of the main ball screw to rotational motion of the drive shaft tube.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: August 11, 2020
    Assignee: K12 DEFENSE CONSULTANTS, LLC
    Inventors: David Russell Gardner, Charles Lee Brown, Jr.