US Patent Issued to KALSI ENGINEERING on Oct. 14 for "Bidirectional hydrodynamic rotary seal" (Maryland, Texas Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,449, issued on Oct. 14, was assigned to KALSI ENGINEERING INC. (Sugar Land, Texas).

"Bidirectional hydrodynamic rotary seal" was invented by Lannie Laroy Dietle (Arnold, Md.) and Aaron Paul Richie (Missouri City, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A seal configuration, mold and manufacturing process that inhibits undesirable elastomer migration onto critical radially inwardly facing portions of a plastic-lined dynamic sealing lip, for improved high-pressure seal operation. The seal configuration is a hydrodynamically lubricating rotary seal for differential pressure acting in either axial direction that establishes compressed seali...