US Patent Issued to PRATT & WHITNEY CANADA on July 22 for "Air inlet barrier filter for a helicopter" (Canadian Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,473, issued on July 22, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).

"Air inlet barrier filter for a helicopter" was invented by Michel Labrecque (Sainte-Julie, Canada) and Kevin Nguyen (Montreal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A helicopter has an air inlet barrier filter (IBF) system including a guide rail extending axially along one side of a nacelle housing a helicopter engine. A filter panel is slidable along the guide rail for movement between a filtered position in which the filter panel covers an air inlet of the nacelle and an unfiltered position in which the filter panel uncovers a total surface area of t...