Patents by Inventor Ulf Kirschner

Ulf Kirschner 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 syringe with an integrated closure element
    Patent number: 11850778
    Abstract: The invention relates to a method for producing a syringe with an integrated closure element, which method comprises the following method steps: a) making available an injection moulding tool which comprises a first, a second and a third tool portion, wherein the first tool portion has a mould cavity open at both sides and extending along an axial direction (X), and wherein the second tool portion has a first injection moulding core and the third tool portion has a second injection moulding core; b) closing the injection moulding tool such that the first tool portion contacts the second and third tool portion, and the first and second injection moulding core each enter the mould cavity of the first tool portion through an opening and finally contact each other, as a result of which these tool portions form a first structural cavity; c) injecting a first plastic material into the first structural cavity, as a result of which a hollow cylindrical syringe body is formed with an end region at its distal end, w
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 26, 2023
    Assignee: Gerresheimer Regensburg GmbH
    Inventors: Maximilian Vogl, Ulf Kirschner, Jessica Kreher
  • METHOD FOR PRODUCING A SYRINGE WITH AN INTEGRATED CLOSURE ELEMENT
    Publication number: 20190299507
    Abstract: The invention relates to a method for producing a syringe with an integrated closure element, which method comprises the following method steps: a) making available an injection moulding tool which comprises a first, a second and a third tool portion, wherein the first tool portion has a mould cavity open at both sides and extending along an axial direction (X), and wherein the second tool portion has a first injection moulding core and the third tool portion has a second injection moulding core; b) closing the injection moulding tool such that the first tool portion contacts the second and third tool portion, and the first and second injection moulding core each enter the mould cavity of the first tool portion through an opening and finally contact each other, as a result of which these tool portions form a first structural cavity; c) injecting a first plastic material into the first structural cavity, as a result of which a hollow cylindrical syringe body is formed with an end region at its distal end, w
    Type: Application
    Filed: September 29, 2017
    Publication date: October 3, 2019
    Inventors: Maximilian Vogl, Ulf Kirschner, Jessica Kreher