Patents by Inventor JESPER SLATTENGREN

JESPER SLATTENGREN 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).

  • MOTOR VEHICLE WITH MULTI-MODE EXTREME TRAVEL SUSPENSION-SUSPENSION HYDRAULIC DESIGN
    Publication number: 20250135822
    Abstract: A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.
    Type: Application
    Filed: December 30, 2024
    Publication date: May 1, 2025
    Applicant: Pratt & Miller Engineering and Fabrication, LLC
    Inventors: Kenneth J. Flory, Jesper Slattengren, Guido Francesco Ritelli
  • Motor vehicle with multi-mode extreme travel suspension-suspension hydraulic design
    Patent number: 12179534
    Abstract: A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: December 31, 2024
    Assignee: Pratt & Miller Engineering & Fabrication, LLC
    Inventors: Kenneth J. Flory, Jesper Slattengren, Guido Francesco Ritelli
  • MOTOR VEHICLE WITH MULTI-MODE EXTREME TRAVEL SUSPENSION-SUSPENSION HYDRAULIC DESIGN
    Publication number: 20240109383
    Abstract: A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.
    Type: Application
    Filed: March 29, 2023
    Publication date: April 4, 2024
    Applicant: Pratt & Miller Engineering & Fabrication, LLC
    Inventors: Kenneth J. Flory, Jesper Slattengren, Guido Francesco Ritelli
  • Motor-vehicle with multi-mode extreme travel suspension-suspension hydraulic design
    Patent number: 11633999
    Abstract: A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: April 25, 2023
    Assignee: PRATT & MILLER ENGINEERING AND FABRICATION, LLC
    Inventors: Kenneth J. Flory, Jesper Slattengren, Guido Francesco Ritelli
  • MOTOR-VEHICLE WITH MULTI-MODE EXTREME TRAVEL SUSPENSION-SUSPENSION HYDRAULIC DESIGN
    Publication number: 20210237528
    Abstract: A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 5, 2021
    Applicant: PRATT & MILLER ENGINEERING AND FABRICATION, INC.
    Inventors: KENNETH J. FLORY, JESPER SLATTENGREN, GUIDO FRANCESCO RITELLI