Patents by Inventor Leopoldo Marzal Lopez

Leopoldo Marzal Lopez 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: 10711932
    Abstract: A plug-in connection between a connecting part and a plug-in part, which are configured to be plugged into one another in an axial direction of the plug-in connection, is provided with a sealing groove disposed between connecting part and plug-in part. A sealing ring is disposed between the connecting part and the plug-in part in the sealing groove. The sealing ring is supported in the sealing groove by the connecting part and by the plug-in part, respectively, in a radial direction of the plug-in connection and exerts a sealing pressure in the radial direction. The sealing ring has an omega-shaped cross section with a rounded body portion having an open side and with supporting legs connected to opposed ends of the rounded body portion at the open side of the rounded body portion. The open side of the rounded body portion faces outwardly in the radial direction.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 14, 2020
    Assignee: MANN+HUMMEL GmbH
    Inventors: Jorge Sánchez, Leopoldo Marzal Lopez, Juan Jose Olivan, Jaime Gracia Heras
  • Publication number: 20180224040
    Abstract: A plug-in connection between a connecting part and a plug-in part, which are configured to be plugged into one another in an axial direction of the plug-in connection, is provided with a sealing groove disposed between connecting part and plug-in part. A sealing ring is disposed between the connecting part and the plug-in part in the sealing groove. The sealing ring is supported in the sealing groove by the connecting part and by the plug-in part, respectively, in a radial direction of the plug-in connection and exerts a sealing pressure in the radial direction. The sealing ring has an omega-shaped cross section with a rounded body portion having an open side and with supporting legs connected to opposed ends of the rounded body portion at the open side of the rounded body portion. The open side of the rounded body portion faces outwardly in the radial direction.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 9, 2018
    Inventors: Jorge Sánchez, Leopoldo Marzal Lopez, Juan Jose Olivan, Jaime Gracia Heras