Patents by Inventor Ricardo Leite Passos

Ricardo Leite Passos 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).

  • Single system for low or high pressure gases control and high or low pressure gases control valve
    Patent number: 7753066
    Abstract: “SINGLE SYSTEM FOR CONTROL OF HIGH OR LOW PRESSURE GASES FLOW RATE AND VALVE FOR CONTROL OF HIGH OR LOW PRESSURE GASES”, consists essentially in a system (S), which has active control of the movement of the valve (1) ram (P) solely by the concept of measurement of the flow rate and by the difference of pressure between the input and output of said valve (1), which, based on certain preconceived parameters, opens or closes the ram (P) so as to compensate the error between the actual and programmed flow rates.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: July 13, 2010
    Assignee: Thermojet do Brasil Ltda.
    Inventors: Ricardo Leite Passos, Alfredo José Alvim De Castro, Caio Moldehnhauer Peret, Eduardo Sala Polati, Heldai Lemos Ferreira, Sérgio Lopes Donke, Rodrigo Muzzutti, Renato Giacomini, Renato Gallina