US Patent Issued to FUZHOU UNIVERSITY on June 30 for "Flexible wall device and method for measuring gas permeability coefficient and gas diffusion coefficient of soil" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,426, issued on June 30, was assigned to FUZHOU UNIVERSITY (Fuzhou, China).

"Flexible wall device and method for measuring gas permeability coefficient and gas diffusion coefficient of soil" was invented by Song Feng (Fuzhou, China), Shufu Huang (Fuzhou, China), Liangtong Zhan (Fuzhou, China) and Hongwei Liu (Fuzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flexible wall device and method for measuring gas permeability coefficient and gas diffusion coefficient of unsaturated soil includes a gas washing device, a confining pressure-volume change system, a drying-wetting cycle control system and a gas measuring device. The drying-wetting ...