Patents by Inventor Roger M. Goodall

Roger M. Goodall 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).

  • Active suspensions for vehicles
    Patent number: 4215403
    Abstract: An active suspension for a vehicle, in particular an active tilting suspension for a railway vehicle, has a first main control loop in which a deficiency signal indicative of the difference actuator response and demand is fed through a low-pass filter to control operation of the actuator. A second control loop derives a restraining signal from actuator operation and this restraining signal is fed through a high-pass filter, which is substantially complementary to the aforesaid low-pass filter, to provide a restraining control on the actuator.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: July 29, 1980
    Assignee: British Railways Board
    Inventors: Maurice G. Pollard, Roger M. Goodall