Patents by Inventor Jose Rullan

Jose Rullan 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).

  • Rooftop vent for reducing pressure under a membrane roof
    Patent number: 7607974
    Abstract: Membrane roofs are susceptible to damage in high winds. Wind can lift a membrane roof from a building and cause it to tear or become damaged. The present roof vent prevents liftoff and damage by reducing the air pressure under the membrane during high winds. The present roof vent has two opposed convex domes separated by a gap. Wind blowing across the roof flows between the domes where it accelerates and creates a region of low pressure according to the Venturi effect. The lower dome has an opening at the gap so that the low pressure is applied to the space under the membrane roof. Therefore, when wind blows across the roof, the vent draws air from under the membrane and the membrane is pressed against the roof, preventing liftoff.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: October 27, 2009
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: James R. Jones, Demetri Telionis, Pavlos Vlachos, Elizabeth Grant, Jose Rullan, Charles S. Johnson
  • Rooftop vent for reducing pressure under a membrane roof
    Patent number: 7001266
    Abstract: Membrane roofs are susceptible to damage in high winds. Wind can lift a membrane roof from a building and cause it to tear or become damaged. The present roof vent prevents liftoff and damage by reducing the air pressure under the membrane during high winds. The present roof vent has two opposed convex domes separated by a gap. Wind blowing across the roof flows between the domes where it accelerates and creates a region of low pressure according to the Venturi effect. The lower dome has an opening at the gap so that the low pressure is applied to the space under the membrane roof. Therefore, when wind blows across the roof, the vent draws air from under the membrane and the membrane is pressed against the roof, preventing liftoff.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: February 21, 2006
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: James R. Jones, Demetri Telionis, Pavlos Vlachos, Elizabeth Grant, Jose Rullan, Charles S. Johnson
  • Rooftop vent for reducing pressure under a membrane roof
    Publication number: 20060005479
    Abstract: Membrane roofs are susceptible to damage in high winds. Wind can lift a membrane roof from a building and cause it to tear or become damaged. The present roof vent prevents liftoff and damage by reducing the air pressure under the membrane during high winds. The present roof vent has two opposed convex domes separated by a gap. Wind blowing across the roof flows between the domes where it accelerates and creates a region of low pressure according to the Venturi effect. The lower dome has an opening at the gap so that the low pressure is applied to the space under the membrane roof. Therefore, when wind blows across the roof, the vent draws air from under the membrane and the membrane is pressed against the roof, preventing liftoff.
    Type: Application
    Filed: July 11, 2005
    Publication date: January 12, 2006
    Inventors: James Jones, Demetri Telionis, Pavlos Vlachos, Elizabeth Grant, Jose Rullan, Charles Johnson
  • Rooftop vent for reducing pressure under a membrane roof
    Publication number: 20040235411
    Abstract: Membrane roofs are susceptible to damage in high winds. Wind can lift a membrane roof from a building and cause it to tear or become damaged. The present roof vent prevents liftoff and damage by reducing the air pressure under the membrane during high winds. The present roof vent has two opposed convex domes separated by a gap. Wind blowing across the roof flows between the domes where it accelerates and creates a region of low pressure according to the Venturi effect. The lower dome has an opening at the gap so that the low pressure is applied to the space under the membrane roof. Therefore, when wind blows across the roof, the vent draws air from under the membrane and the membrane is pressed against the roof, preventing liftoff.
    Type: Application
    Filed: March 24, 2004
    Publication date: November 25, 2004
    Inventors: James R. Jones, Demetri Telionis, Pavlos Vlachos, Elizabeth Grant, Jose Rullan, Charles S. Johnson