Patents by Inventor Nestor Leal-Cantu

Nestor Leal-Cantu 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).

  • Method and apparatus for the pneumatic transport of iron-bearing particles
    Patent number: 5447550
    Abstract: Methods and systems are provided for controlling the pneumatic transport of friable particulate solid material through a transport pipe by means of a carrier gas circulating in a loop comprising the transport pipe and a carrier gas recycle conduit. A value of kinetic energy of the carrier gas is determined at a location proximal to a point of introduction of the material into the transport pipe. This value is compared with a kinetic energy set point to produce a first control signal which controls venting of carrier gas from the loop. A value of flow rate of the carrier gas in the loop is determined and compared with a comparison signal based on the first control signal to produce a second control signal. The second control signal is used to control the flow rate of the carrier gas through the carrier gas loop.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: September 5, 1995
    Assignee: Hylsa S.A. de C.V.
    Inventors: Nestor Leal-Cantu, Rogelio Trevin-Garza, Agustin Davila-Chavez, Alberto Zazueta-Aispuro