Patents by Inventor Piotr Marko

Piotr Marko 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).

  • Diaphragm arrangement for a spring brake actuator of a pneumatic braking system of a vehicle
    Patent number: 12715415
    Abstract: A diaphragm arrangement (100) for a spring brake actuator (250) of a pneumatic braking system (210) of a vehicle (200a) enables a mechanical interaction between a piston pipe (255) of the spring brake actuator (250) and a push rod (260). The diaphragm arrangement (100) includes an outer diaphragm member (110), an inner diaphragm member (120), and a piston plate (130). The outer diaphragm member (110) is at least partially outwardly arranged from the inner diaphragm member (120) and the piston plate (130). The piston plate (130) deflects together with the pushrod (260). The outer diaphragm member (110) includes a central opening (111), and the inner diaphragm member (120) and/or the piston plate (130) are arranged to cover the opening (111). The outer diaphragm member (110), the inner diaphragm member (120), and the piston plate (130) are fixed to each other.
    Type: Grant
    Filed: May 13, 2025
    Date of Patent: August 25, 2026
    Assignee: ZF CV Systems Europe BV
    Inventor: Piotr Marko
  • DIAPHRAGM ARRANGEMENT FOR A SPRING BRAKE ACTUATOR OF A PNEUMATIC BRAKING SYSTEM OF A VEHICLE
    Publication number: 20250353483
    Abstract: A diaphragm arrangement (100) for a spring brake actuator (250) of a pneumatic braking system (210) of a vehicle (200a) enables a mechanical interaction between a piston pipe (255) of the spring brake actuator (250) and a push rod (260). The diaphragm arrangement (100) includes an outer diaphragm member (110), an inner diaphragm member (120), and a piston plate (130). The outer diaphragm member (110) is at least partially outwardly arranged from the inner diaphragm member (120) and the piston plate (130). The piston plate (130) deflects together with the pushrod (260). The outer diaphragm member (110) includes a central opening (111), and the inner diaphragm member (120) and/or the piston plate (130) are arranged to cover the opening (111). The outer diaphragm member (110), the inner diaphragm member (120), and the piston plate (130) are fixed to each other.
    Type: Application
    Filed: May 13, 2025
    Publication date: November 20, 2025
    Inventor: Piotr Marko