Patents by Inventor Leo H. McWilliams

Leo H. McWilliams 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).

  • Anti-lock braking system module for aircraft equipped with master cylinder brake systems
    Patent number: 6672688
    Abstract: A combination brake and anti-lock system for a wheeled vehicle such as an aircraft includes an operator controlled source of pressurized hydraulic fluid for selectively applying hydraulic pressure to a hydraulically actuated wheel rotation braking device which responds to the applied hydraulic pressure to apply a braking force to a wheel of the vehicle to thereby arresting wheel motion. There is a low pressure hydraulic fluid return with a normally open hold valve in circuit between the source and the braking device for selectively opening and closing a fluid flow path from the source to the braking device and a normally closed decay valve in circuit between the braking device and the return for selectively opening and closing a fluid flow path from the braking device to the return.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: January 6, 2004
    Assignee: Honeywell International Inc.
    Inventors: Allen R. Gale, Jeffrey K. Arnold, Allan W. Blunt, Leo H. McWilliams
  • Anti-lock braking system module for aircraft equipped with master cylinder brake systems
    Publication number: 20020175562
    Abstract: A combination brake and anti-lock system for a wheeled vehicle such as an aircraft includes an operator controlled source of pressurized hydraulic fluid for selectively applying hydraulic pressure to a hydraulically actuated wheel rotation braking device which responds to the applied hydraulic pressure to apply a braking force to a wheel of the vehicle to thereby arresting wheel motion. There is a low pressure hydraulic fluid return with a normally open hold valve in circuit between the source and the braking device for selectively opening and closing a fluid flow path from the source to the braking device and a normally closed decay valve in circuit between the braking device and the return for selectively opening and closing a fluid flow path from the braking device to the return.
    Type: Application
    Filed: January 22, 2002
    Publication date: November 28, 2002
    Inventors: Allen R. Gale, Jeffrey K. Arnold, Allan W. Blunt, Leo H. McWilliams