Patents by Inventor Frédéric STAERCK

Frédéric STAERCK 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).

  • Stack of flexible bags, method and machine for producing said stack
    Patent number: 11738532
    Abstract: Bags are made, with which a stack is formed. To do this, a tube is formed with a strip of flexible material, a portion of tube is separated at the front of the tube forming a first flap at the rear of the portion of tube, the first flap prolonging the first wall of the portion beyond the end of the second wall adjacent to the first wall, a bag is formed with each portion of tube, and a stack of bags is formed, the first wall of the first of the bags being against the second wall of the adjacent second bag. An anti-adhesive coating is applied on to the first wall of the first bag and a coat of adhesive is applied on to the second wall of the second bag ensuring the temporary attachment with the anti-adhesive coating.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: August 29, 2023
    Assignee: Holweg Group
    Inventor: Frédéric Staerck
  • STACK OF FLEXIBLE BAGS, METHOD AND MACHINE FOR PRODUCING SAID STACK
    Publication number: 20200361171
    Abstract: Bags are made, with which a stack is formed. To do this, a tube is formed with a strip of flexible material, a portion of tube is separated at the front of the tube forming a first flap at the rear of the portion of tube, the first flap prolonging the first wall of the portion beyond the end of the second wall adjacent to the first wall, a bag is formed with each portion of tube, and a stack of bags is formed, the first wall of the first of the bags being against the second wall of the adjacent second bag. An anti-adhesive coating is applied on to the first wall of the first bag and a coat of adhesive is applied on to the second wall of the second bag ensuring the temporary attachment with the anti-adhesive coating.
    Type: Application
    Filed: November 12, 2018
    Publication date: November 19, 2020
    Inventor: Frédéric STAERCK