ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,137, issued on Sept. 30, was assigned to Viking Pump Inc. (Cedar Falls, Iowa).
"Rotating pump shaft barrier seal" was invented by Andrew Anderson (Cedar Falls, Iowa), Scott Meyer (Brandon, Iowa) and Alfonso Johnson (Cedar Falls, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "One or more techniques and/or systems are disclosed for an improved barrier seal for use on a rotating shaft of a pump to mitigate leakage of fluids along the shaft. The body of the barrier seal may comprise a one-piece combined bushing and seal that can be selectably fastened to the pump bracket. Internal and external channels in the body can operably hold gaskets, intern...