JOHN DENSMORE COOPER
Pilots at Taylors Bnd, San Antonio, TX
License number
Texas A3003197
Issued Date
Mar 2017
Expiration Date
Sep 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
4415 Taylors Bnd, San Antonio, TX 78247
Professional information
Independent Research Professional
Location:
San Antonio, Texas Area
Industry:
Research
System For Determining Liquid Flow Rate Through Leaks In Impermeable Membrane Liners
US Patent:
4751467, Jun 14, 1988
Filed:
Mar 19, 1987
Appl. No.:
7/027736
Inventors:
John W. Cooper - San Antonio TX
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
G01R 3100
US Classification:
324557
Abstract:
A method and apparatus for determining the rate of flow of a leak through a geomembrane is set forth. In the preferred and illustrated embodiment, a surrounding lower skirt having a peripheral weight thereabout is placed on the bottom to surround the location of the leak. The skirt supports a cover. A portion of the skirt or cover is made of an ionic and electrically permeable membrane to permit current flow. A second liquid is defined to be miscible with the first liquid and to have a markedly different electrical conductivity. The rate of flow of the second liquid out of the lower skirt and cover is determined by measuring the electrical potential between liquid in the impoundment and the second liquid within the skirt as the electrical conductivity of the surrounding earth is altered by invasion of the second liquid into the soil under the geomembrane liner. The apparatus utilizes a reservoir of the second liquid which is delivered through a suitable valve and fill hose into the lower skirt and cover.
Fluid Leak Detection System For Determining The Fate Of Fluid Leakage Through A Geomembrane
US Patent:
4755757, Jul 5, 1988
Filed:
Mar 6, 1987
Appl. No.:
7/022394
Inventors:
John W. Cooper - San Antonio TX
Assignee:
Southwest Research Institute - San Antonio TX
International Classification:
G01R 3108, G01M 316
US Classification:
324557
Abstract:
A system and a method for measuring the leakage flow rate from an impounded liquid through a tear or hole in a geomembrane liner is set forth. It utilizes a narrowed passage connected with an inverted funnel to confine the flow, and further includes forming a transverse magnetic field thereacross, a sensor mutually perpendicular to the passage and the magnetic field and a voltmeter connected to the sensor for measuring the voltage. The voltage is dependent on the rate of flow of the leaked liquid along the passage.