US Patent Issued to PRATT & WHITNEY CANADA on Dec. 30 for "Internal surface treatment device for hollow engine shaft and the like" (Canadian Inventor)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,622, issued on Dec. 30, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).

"Internal surface treatment device for hollow engine shaft and the like" was invented by Julien Marleau-Finley (Montreal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface treatment device for applying a surface treatment to an inner surface of a hollow engine shaft includes a supply of a surface treatment agent and an elongated rod extending from a proximal end to a distal end. The elongated rod has an inner passage extending from the proximal end to the distal end. The proximal end has an inlet fluidly coupled to the supply of the surface treatment agen...