US Patent Issued to CAMINOTEK on Sept. 22 for "Refillable propane gas tank" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,520, issued on Sept. 22, was assigned to CAMINOTEK LLC (Danville, Calif.).

"Refillable propane gas tank" was invented by Qi Duan (Lengshuijiang City, China) and Shuai Li (Changsha City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A refillable propane gas tank includes a propane tank body, a valve main body, a first sealing valve, a second sealing valve, and a liquid injecting head. The valve main body includes a liquid injecting channel and a pressure relief channel. The pressure relief channel includes a first air outlet. The first sealing valve is for sealing the liquid injecting channel. The second sealing valve is for sealing the first...