Patents by Inventor Franco Shlomi

Franco Shlomi 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).

  • Solenoid valve with permanent magnet
    Patent number: 6199587
    Abstract: A solenoid valve comprises a first coil, a plunger, a first and a second opening in the valve, and a latching mechanism placed in association with the first opening. The latching mechanism causes latching, with a predetermined latching force, of the plunger to the first opening, and energization of the first coil along a predetermined first polarity causes at least a reduction of the latching force. The plunger has a first end towards the first opening and a second end towards the second opening, and a magnetic field extensor extends a first pole of the magnetic field produced by the first coil to the first end of the plunger. The extensor comprises a hollow cylindrical ferrous member terminated by a ferrous endpiece and is movable, with the plunger, relative to the first opening.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: March 13, 2001
    Inventors: Franco Shlomi, Joseph Rogozinski, Vychislav Ivanov, Uri Arkashevski