Patents by Inventor Giovanni Gonfiantini

Giovanni Gonfiantini 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).

  • Injector manifold valve capable of preventing leaks into the environment, for coolant gases
    Patent number: 5349998
    Abstract: An electromagnetic control ( 12, 14, 14A) causes the opening of a valve (1A) blocking the connector (1) of the system (3) to be used; pipes (30, 34, 42) with corresponding connections to a transfer passage (20, 16, 14B, 9, 7A) are controlled by corresponding valves (36, 38, 44); one of the pipes supplies the refrigerant or other pollutant fluid, a second pipe connects the injector to a vacuum source, and a third pipe connects the injector to a suction recovery means, permitting the discharge, recovery or extraction of pollutant gas from the dead space inside the injector and if necessary from the confined volume of said system (3).
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: September 27, 1994
    Assignee: Galileo Vacuum Tec S.p.A.
    Inventor: Giovanni Gonfiantini