Patents by Inventor Hugo J. Beltrami

Hugo J. Beltrami 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 of measuring the flux of a soil gas
    Patent number: 8712692
    Abstract: A method for determining a flux of a gas contained in a medium through a boundary of the medium comprises 1) measuring at least twice with a probe a concentration C of the gas over a time interval ?t and 2) determining the flux of the gas using the following mathematical equation: (I) where F is the gas flux, D is the diffusivity value and ?C is a variation in the gas concentration during the time interval ?t. The probe is placed proximate the boundary. The probe has a gas inlet, a cavity, a gas concentration sensor and a membrane. Each element is in fluid communication with each other so that the gas flows from the gas inlet through the membrane and contacts the gas concentration sensor.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: April 29, 2014
    Assignee: St. Francis Xavier University
    Inventors: David A. Risk, Hugo J. Beltrami, Nicholas R. Nickerson, Gordon McArthur
  • METHOD OF MEASURING THE FLUX OF A SOIL GAS
    Publication number: 20120035850
    Abstract: A method for determining a flux of a gas contained in a medium through a boundary of the medium comprises 1) measuring at least twice with a probe a concentration C of the gas over a time interval ?t and 2) determining the flux of the gas using the following mathematical equation: (I) where F is the gas flux, D is the diffusivity value and ?C is a variation in the gas concentration during the time interval ?t. The probe is placed proximate the boundary. The probe has a gas inlet, a cavity, a gas concentration sensor and a membrane. Each element is in fluid communication with each other so that the gas flows from the gas inlet through the membrane and contacts the gas concentration sensor.
    Type: Application
    Filed: December 15, 2008
    Publication date: February 9, 2012
    Applicant: ST. FRANCIS XAVIER UNIVERSITY
    Inventors: David A. Risk, Hugo J. Beltrami, Nicholas R. Nickerson, Gordon McArthur