Patents by Inventor Stephen J. Marshall

Stephen J. Marshall 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).

  • Publication number: 20230294509
    Abstract: A vehicle fender air intake assembly for a vehicle can include a central baffle configured to be mounted to a body structure of the vehicle, a central shutter mounted on the central baffle, a lower baffle configured to be mounted to the body structure, a lower shutter mounted on the lower baffle, and an upper baffle including a first side and a second side that opposes the first side. The upper baffle can terminate at the first side and the second side. The first side can include a first opening in fluid communication with the central baffle, and the second side can include a second opening in fluid communication with the central baffle.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 21, 2023
    Inventors: Stephen J. MARSHALL, Steve FARIA, Patrick J. ELLISON, Taiga MARUKAWA, Takashi NAKANO, Akira FUTATSUHASHI, Keiichiro TSUJI
  • Patent number: 10113491
    Abstract: An actuation system for a valve is disclosed. The actuation system comprises a housing having an end wall. A first piston and a second piston is slidably positioned within the housing. The second piston is positioned between the first piston and the end wall. A piston rod is coupled to the first piston and slidably extends through the second piston and the end wall. The piston rod is configured to be coupled with the valve. A first spring is arranged between the first piston and the second piston. Further, a second spring is arranged between the second piston and the end wall. The first spring and the second spring are configured to bias the valve to a closed position.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: October 30, 2018
    Assignee: Caterpillar Inc.
    Inventors: Joseph J. Stabnik, Malcolm Trimm, Lawrence Chandler, Cormac Quinn, Ryan M Brown, Stephen J. Marshall
  • Publication number: 20170298842
    Abstract: An actuation system for a valve is disclosed. The actuation system comprises a housing having an end wall. A first piston and a second piston is slidably positioned within the housing. The second piston is positioned between the first piston and the end wall. A piston rod is coupled to the first piston and slidably extends through the second piston and the end wall. The piston rod is configured to be coupled with the valve. A first spring is arranged between the first piston and the second piston. Further, a second spring is arranged between the second piston and the end wall. The first spring and the second spring are configured to bias the valve to a closed position.
    Type: Application
    Filed: April 18, 2016
    Publication date: October 19, 2017
    Applicant: Caterpillar Inc.
    Inventors: Joseph J. Stabnik, Malcolm Trimm, Lawrence Chandler, Cormac Quinn, Ryan M. Brown, Stephen J. Marshall
  • Patent number: 5094538
    Abstract: An optical system and method for digitizing a last or other irregularly shaped article comprises a laser device fixed on a base directing a light beam at a last supported for rotation about an axis, perpendicular to which the light beam is directed. Two cameras are fixed to the base, one at each side of the laser device, and each comprises an array of cells for detecting the point of incidence of the light beam on the last surface. As the last is rotated, the point of incidence varies in relation to a datum, e.g. the axis of rotation, and the point maximum intensity of illumination on the array of cells will vary across the array accordingly. By a correlating technique, the distance of the point of incidence from the datum can be determined according to the point of maximum intensity of the array.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: March 10, 1992
    Assignee: British United Shoe Machinery Limited
    Inventors: David C. Reedman, Peter M. Witty, Stephen J. Marshall, Hugh G. Sasse