Patents by Inventor Daniel Hrdina

Daniel Hrdina 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).

  • Method for producing a piston
    Patent number: 11213922
    Abstract: A method for producing a piston may include providing a blank of a piston base member with an outer peripheral joining face, an inner peripheral joining face which may be expanded in a direction of a base region of a combustion bowl, and a lower cooling channel portion which may extend between the outer and inner peripheral joining faces, wherein at least one of (i) at least one of the outer and inner peripheral joining faces and (ii) the lower cooling channel portion may be not subsequently processed. The method may then include providing a blank of a piston ring element with an outer annular joining face, an inner annular joining face, and an upper cooling channel portion which may extend between the outer and inner annular joining faces, wherein at least one of (i) at least one of the outer and inner annular joining faces and (ii) the upper cooling channel portion may be not subsequently processed.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: January 4, 2022
    Inventor: Daniel Hrdina
  • METHOD FOR PRODUCING A PISTON
    Publication number: 20200070289
    Abstract: A method for producing a piston may include providing a blank of a piston base member with an outer peripheral joining face, an inner peripheral joining face which may be expanded in a direction of a base region of a combustion bowl, and a lower cooling channel portion which may extend between the outer and inner peripheral joining faces, wherein at least one of (i) at least one of the outer and inner peripheral joining faces and (ii) the lower cooling channel portion may be not subsequently processed. The method may then include providing a blank of a piston ring element with an outer annular joining face, an inner annular joining face, and an upper cooling channel portion which may extend between the outer and inner annular joining faces, wherein at least one of (i) at least one of the outer and inner annular joining faces and (ii) the upper cooling channel portion may be not subsequently processed.
    Type: Application
    Filed: February 16, 2018
    Publication date: March 5, 2020
    Inventor: Daniel Hrdina