Patents by Inventor Christian Mainvielle

Christian Mainvielle 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).

  • Material gripping device
    Patent number: 4165811
    Abstract: A device for gripping and transferring a fabric material such as a canvas sack or the wrapper of a bale is disclosed comprising a carriage movable on a rail and on which is mounted a gripping assembly. The gripping assembly includes a disc having engagement tines disposed thereon which is driven by a low torque motor. The operations of lowering the discs for engagement of the fabric, engagement and transfer of the fabric are integrated for sequential action.
    Type: Grant
    Filed: March 3, 1978
    Date of Patent: August 28, 1979
    Assignee: Service d'Exploitation Industrielle des Tabacs et des Allumettes
    Inventor: Christian Mainvielle