Patents by Inventor Sergio Cella

Sergio Cella 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).

  • Hydraulic piston and cylinder unit
    Patent number: 5305605
    Abstract: An hydraulic piston and cylinder unit with a piston rod and first and second cylinders. The piston rod extends into the first cylinder, and the first cylinder extends into the second cylinder. The piston rod is connected to a first piston which divides the first cylinder into first and second chambers. A second piston, connected to the first cylinder, divides the second cylinder into first and second chambers. The second chambers of the first cylinder, and the first chamber of the second cylinder are in fluid communication such that an extension of the first cylinder causes a proportional extension of the second cylinder. A similar effect occurs during retraction of the cylinders.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: April 26, 1994
    Assignee: Simon Cella S.r.l.
    Inventor: Sergio Cella