Patents by Inventor Nathan R. Plow

Nathan R. Plow 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).

  • Brake actuator using fluid bladder or bladders as fluid chambers
    Patent number: 11001244
    Abstract: A brake actuator has a plurality of actuator housing portions, a parking piston axially displaceable within one of the actuator housing portions, and a service piston axially displaceable independently of the parking piston within another of the actuator housing portions. A brake actuator rod projecting from the other of the actuator housing portions moves outward of that actuator housing portion upon at least one of fluid supply to a first substantially torus-shaped service brake bladder and fluid relief from a second substantially torus-shaped parking brake bladder. The brake actuator rod can be moved inward into the other of the actuator housing portions upon fluid relief from the first substantially torus-shaped service brake bladder, and fluid supply to the second substantially torus-shaped parking brake bladder or both.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: May 11, 2021
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: Paul M. Wasnick, Nathan R. Plow, Jeremy A. Brown