US Patent Issued on Aug. 18 for "Piston ring seal with reduced stiction" (Texas Inventor)

ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,710,063, issued on Aug. 18.

"Piston ring seal with reduced stiction" was invented by Roger J. Gregoire (New Braunfels, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piston and cylinder assembly structured to reduce breakaway friction (stiction) upon movement of the piston within the cylinder. The assembly includes a cylinder housing, a piston having a piston crown with a top face and one or more peripheral grooves, and a sealing ring positioned on the piston in each of the one or more peripheral grooves. The piston crown incorporates one or more passageways extending from a space above the piston to a location within the peripheral groove insid...