Patents by Inventor Timothy Jay LINDHOLM

Timothy Jay LINDHOLM 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).

  • Milling machine having a hydraulic dampening system
    Patent number: 11585052
    Abstract: A milling machine may have a frame, first and second ground engagement members connected through respective, vertically adjustable leg columns to a front end of the frame, and third and fourth ground engagement members connected through respective, vertically adjustable leg columns to a rear end of the frame. Each vertically adjustable leg column includes a hydraulic cylinder connecting the frame and the associated ground engagement member. A milling drum is attached to the frame between the front and rear ends. At least one pair of the leg columns connected to the front end of the frame or the leg columns connected to the rear end of the frame includes an accumulator associated with each of the at least one pair of leg columns, a fluid conduit fluidly connecting a bore end of each of the hydraulic cylinders to the associated accumulator, and a control valve disposed in the fluid conduit and configured to control a flow of fluid between the hydraulic cylinders and the associated accumulators.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: February 21, 2023
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Derek Peter Nieuwsma, Nicholas James Argenziano, Jason William Muir, Timothy Jay Lindholm
  • MILLING MACHINE HAVING A HYDRAULIC DAMPENING SYSTEM
    Publication number: 20210301481
    Abstract: A milling machine may have a frame, first and second ground engagement members connected through respective, vertically adjustable leg columns to a front end of the frame, and third and fourth ground engagement members connected through respective, vertically adjustable leg columns to a rear end of the frame. Each vertically adjustable leg column includes a hydraulic cylinder connecting the frame and the associated ground engagement member. A milling drum is attached to the frame between the front and rear ends. At least one pair of the leg columns connected to the front end of the frame or the leg columns connected to the rear end of the frame includes an accumulator associated with each of the at least one pair of leg columns, a fluid conduit fluidly connecting a bore end of each of the hydraulic cylinders to the associated accumulator, and a control valve disposed in the fluid conduit and configured to control a flow of fluid between the hydraulic cylinders and the associated accumulators.
    Type: Application
    Filed: March 30, 2020
    Publication date: September 30, 2021
    Applicant: CATERPILLAR PAVING PRODUCTS INC.
    Inventors: Derek Peter NIEUWSMA, Nicholas James ARGENZIANO, Jason William MUIR, Timothy Jay LINDHOLM