Patents by Inventor Christian SPERL

Christian SPERL 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: 11065663
    Abstract: An installation and method for forming a workpiece, in particular for forming sheet-metal body panels, includes a first magnetic forming device which includes a first forming tool and a first magnetic tool and a second magnetic forming device which includes a second forming tool and a second magnetic tool. The first magnetic forming device is configured to form the workpiece in a first magnetic forming process and the second magnetic forming device, subsequent to the first magnetic forming process, is configured to further form the workpiece in a second magnetic forming process.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 20, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Matthias Duenckelmeyer, Christian Sperl
  • Publication number: 20190060971
    Abstract: An installation and method for forming a workpiece, in particular for forming sheet-metal body panels, includes a first magnetic forming device which includes a first forming tool and a first magnetic tool and a second magnetic forming device which includes a second forming tool and a second magnetic tool. The first magnetic forming device is configured to form the workpiece in a first magnetic forming process and the second magnetic forming device, subsequent to the first magnetic forming process, is configured to further form the workpiece in a second magnetic forming process.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 28, 2019
    Inventors: Matthias DUENCKELMEYER, Christian SPERL
  • Patent number: 5170537
    Abstract: A necklace, brace, hoop, strap, choker, bracelet or anklet wherein a flexible component has a free end and a second end carrying a coupling which can releasably engage the free end. When the free end is disengaged from the coupling, the flexible component can serve to support a single pendant, two or more pendants, a string of pearls, other beads, stones and/or analogous decorative objects. The number and/or distribution of the objects can be altered as soon as the free end is disengaged from the coupling. The overall length of the flexible component can be reduced by cutting off a portion at the free end.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: December 15, 1992
    Inventor: Gosta-Christian Sperling