US Patent Issued on Aug. 4 for "Slipform blade and method for applying pre-compression strain to cast-in-place concrete on well walls" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,709, issued on Aug. 4.

"Slipform blade and method for applying pre-compression strain to cast-in-place concrete on well walls" was invented by Chi Zhang (Xuzhou, China), Xinyu Yang (Xuzhou, China), Weihao Yang (Xuzhou, China), Jiahui Huang (Xuzhou, China), Zhijiang Yang (Xuzhou, China), Tao Han (Xuzhou, China), Tao Zhang (Xuzhou, China), Tingting Luo (Xuzhou, China) and Yu Zhang (Xuzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses a slipform blade foot and method for applying pre-compression strain to cast-in-place concrete of a shaft wall. The slipform blade foot is an annular structure, comprising a plurality of bla...