| ST. FRANCIS XAVIER UNIVERSITY Patent applications |
| Patent application number | Title | Published |
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| 20120035850 | METHOD OF MEASURING THE FLUX OF A SOIL GAS - 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 Δt 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 ΔC is a variation in the gas concentration during the time interval Δt. 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. | 02-09-2012 |
| 20110269652 | GEMINI SURFACTANTS - The invention relates to gemini surfactants of formula IA wherein A is a core derived from an organic polyhydroxy compound; R | 11-03-2011 |
| 20090301234 | APPARATUS AND METHOD FOR MEASURING THE SURFACE FLUX OF A SOIL GAS COMPONENT - A method of measuring the surface flux of a component of a soil gas comprises placing a chamber for collecting said gas sealably in contact with a soil the chamber initially containing atmospheric gas. Then, the chamber is connected to a purging apparatus to purge the chamber of all measurable traces of the component. Then the soil is permitted to enter the chamber. The method uses a system for measuring the surface flux of the component. The system comprises a chamber having an open bottom for collecting soil gas, a venting port, an exhaust port having a valve and means to purge the chamber of the component. | 12-10-2009 |
| 20090255969 | BACKPACK HAVING A SUSPENDED INNER POUCH - A backpack for carrying a load comprises a shoulder strap assembly, an exterior shell and a pouch for storing the load. The exterior shell has an opening and is attached to the shoulder strap. The pouch is located inside the shell and attached to it and comprises a stretchable portion. This stretchable portion is made of a material having an elastic modulus allowing it to stretch and retract when the load is placed inside the pouch so that the pouch moves down and up relative to the shell with a gait of a wearer of the backpack. | 10-15-2009 |
