Patents Assigned to Empresas Publicas De Medellin E.S.P.
  • Patent number: 10031184
    Abstract: The present invention discloses a method for the detection and diagnosis of faults in running electric machines.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: July 24, 2018
    Assignees: Universidad Nacional de Colombia, Empresas Publicas de Medellin E.S.P.
    Inventors: Raúl Esteban Jimenez Mejia, Guillermo León Mesa Betancur
  • Patent number: 8431876
    Abstract: The present invention provides system for testing an electrical winding element that is usually a stator bar or a stator winding. The stator bar is attached to a short circuit conductive element to form a closed short circuit of a single turn that acts as a primary circuit. The closed short circuit is connected to a step-up transformer that will act as a secondary circuit and which has at least two turns. The step-up transformer uses a controlled variable voltage source that charges the closed short circuit. Charging the closed short circuit creates a current in the stator bar inner conductive element, causing heat on the stator bar by induction. The system of the present invention is suitable for an accelerated thermal aging test that simulates closely how heat is created by induction on stator bars of electric machines.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: April 30, 2013
    Assignee: Empresas Publicas de Medellin E.S.P.
    Inventors: Jose Armando Bohorquez Cortazar, Andres Emiro Diez Restrepo, Juan Carlos Toro Londoño, Jairo Leon Restrepo Velasquez, Hector Diego Gonzalez Sanchez, Hugo Alberto Cardona Restrepo, Gabriel Jaime Lopez Jimenez, Idi Amin Isaac Millan, Emiro De Jesus Diez Saldarriaga
  • Patent number: 7772002
    Abstract: The method of the present invention comprises: Obtaining an explant from the seeds of Jatropha curcas; Putting the explant derived from the seed of Jatropha curcas in a culture medium; Breaking the intercellular unions of the explants tissue, which generates individuals cells; Incubating for a determined time the culture medium with the generated individual cells, that were multiplied; and, Extracting oil from the cells that multiplied from the individual cells generated from the explants derived from the Jatropha curcas seed.
    Type: Grant
    Filed: January 17, 2010
    Date of Patent: August 10, 2010
    Assignees: Universidad De Antioquia, Empresas Publicas De Medellin E.S.P.
    Inventors: Lucia Atehortua Garces, Sandra M. Correa