Patents by Inventor Manfred Lenkner

Manfred Lenkner 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).

  • Patent number: 9038267
    Abstract: A method and apparatus of producing tubes for use in a heat exchanger, in which a tube is moved along a production line in a direction, predetermined breaking points are created in the tube, and in which the tube is severed at the predetermined breaking points to form individual tubes with a tearing-off device having a first clamp and a second clamp. The first clamp can be reciprocated along the direction, and the tube can be moved substantially continuously along the production line in the direction through the tearing-off device. Also, the second clamp can be reciprocated along the direction substantially simultaneously with the first clamp.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 26, 2015
    Assignee: Modine Manufacturing Company
    Inventors: Manfred Schmid, Manfred Lenkner
  • Publication number: 20110302782
    Abstract: A method and apparatus of producing tubes for use in a heat exchanger, in which a tube is moved along a production line in a direction, predetermined breaking points are created in the tube, and in which the tube is severed at the predetermined breaking points to form individual tubes with a tearing-off device having a first clamp and a second clamp. The first clamp can be reciprocated along the direction, and the tube can be moved substantially continuously along the production line in the direction through the tearing-off device. Also, the second clamp can be reciprocated along the direction substantially simultaneously with the first clamp.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 15, 2011
    Inventors: Manfred Schmid, Manfred Lenkner
  • Publication number: 20110296891
    Abstract: An insert cutting apparatus useable in a production line for producing tubes from shaped sheet-metal strips includes an upper die having a first row of punches, and a lower die having a second row of punches. The first and second rows of punches can form predetermined breaking points in at least one of the shaped sheet-metal strips, and the first and second rows of punches can alternate, so that two punches of the first row of punches have a punch of the second row of punches therebetween.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 8, 2011
    Inventors: Manfred Lenkner, Andreas Laug