US Patent Issued to S&B Technical Products on May 5 for "Spline lock restrained pipe joining system for plastic pipe" (Costa Rican Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,501, issued on May 5, was assigned to S&B Technical Products Inc. (Fort Worth, Texas).

"Spline lock restrained pipe joining system for plastic pipe" was invented by Mark A. Weih (San Jose, Costa Rica) and Guido Quesada (Santa Ana, Costa Rica).

According to the abstract* released by the U.S. Patent & Trademark Office: "A restrained pipe joining system for plastic pipe is shown comprising male and female ends each having aligned circumferential grooves which form a canal for passage of a locking keystrap. The keystrap can be formed of PEEK or PEEK reinforced with glass fiber. During manufacture, the female belled end is sequentially formed over a Rieber style gasket and then over a r...