Patents by Inventor John D. Franzini

John D. Franzini 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 synchronization of slide-out for recreational vehicle
    Patent number: 7427092
    Abstract: A hydraulic synchronization system for a slide-out portion of a recreational vehicle has at least two cylinders spaced apart and reversed in orientation with respect to one another. The bore sides of the cylinders are connected and the rod sides of the cylinders are connected such that hydraulic fluid is pumped from the rod side of one cylinder to the rod side of the other cylinder and from the bore side of one cylinder to the bore side of the other cylinder upon extension and retraction of the slide-out portion to keep the slide-out portion synchronized.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: September 23, 2008
    Assignee: Actuant Corporation
    Inventors: Andrew James Wolf, John D. Franzini
  • Hydraulic Synchronization of Slide-Out for Recreational Vehicle
    Publication number: 20070194587
    Abstract: A hydraulic synchronization system for a slide-out portion of a recreational vehicle has at least two cylinders spaced apart and reversed in orientation with respect to one another. The bore sides of the cylinders are connected and the rod sides of the cylinders are connected such that hydraulic fluid is pumped from the rod side of one cylinder to the rod side of the other cylinder and from the bore side of one cylinder to the bore side of the other cylinder upon extension and retraction of the slide-out portion to keep the slide-out portion synchronized.
    Type: Application
    Filed: January 24, 2007
    Publication date: August 23, 2007
    Inventors: Andrew James Wolf, John D. Franzini
  • Hydraulic synchronization of slide-out for recreational vehicle
    Patent number: 7258389
    Abstract: A hydraulic synchronization system for a slide-out portion of a recreational vehicle has two cylinders spaced apart and reversed in orientation with respect to one another at opposite sides of the slide-out portion. The bore sides of the cylinders are connected and the rod sides of the cylinders are connected such that fluid is pumped from the rod side of one cylinder to the rod side of the other cylinder and from the bore side of one cylinder to the bore side of the other cylinder upon extension and retraction of the slide-out portion to keep the slide-out portion synchronized.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: August 21, 2007
    Assignee: Actuant Corporation
    Inventor: John D. Franzini
  • Hydro-pneumatic vehicle suspension system
    Patent number: 6318742
    Abstract: An X-type hydro-pneumatic vehicle suspension system has diagonally opposite wheel support cylinders cross connected rod side to bore side to make a pair of discrete hydraulic circuits for each pair of diagonally opposite wheels of the vehicle. Each discrete circuit has two gas charged accumulators, one near the front and one near the rear. The gas chambers of accumulators in the two pairs of discrete hydraulic circuits are connected in a variety of ways to equalize pressures between the pairs of circuits.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: November 20, 2001
    Assignee: Actuant Corporation
    Inventor: John D. Franzini
  • Hydro-pneumatic vehicle suspension system
    Publication number: 20010006285
    Abstract: An X-type hydro-pneumatic vehicle suspension system has diagonally opposite wheel support cylinders cross connected rod side to bore side to make a pair of discrete hydraulic circuits for each pair of diagonally opposite wheels of the vehicle. Each discrete circuit has two gas charged accumulators, one near the front and one near the rear. The gas chambers of accumulators in the two pairs of discrete hydraulic circuits are connected in a variety of ways to equalize pressures between the pairs of circuits.
    Type: Application
    Filed: February 13, 2001
    Publication date: July 5, 2001
    Inventor: John D. Franzini
  • Hydro-pneumatic vehicle suspension system
    Patent number: 6220613
    Abstract: An X type hydro-pneumatic vehicle suspension system has diagonally opposite wheel support cylinders cross connected rod side to bore side to make a pair of discrete hydraulic circuits for each pair of diagonally opposite wheels of the vehicle. Each discrete circuit has two gas charged accumulators, one near the front and one near the rear. The gas chambers of accumulators in the two pairs of discrete hydraulic circuits are connected in a variety of ways to equalize pressures between the pairs of circuits.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: April 24, 2001
    Assignee: Actuant Corporation
    Inventor: John D. Franzini