US Patent Issued to PRATT & WHITNEY CANADA on Feb. 3 for "Automatic bleed valve" (Canadian Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,580, issued on Feb. 3, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).

"Automatic bleed valve" was invented by Dave Menheere (Norval, Canada) and Jason Herborth (Acton, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compressor bleed valve of a gas turbine engine includes a valve support, and a valve element positioned at the valve support and movable relative to the valve support from an open position into a closed position engaged with a valve seat. The movement of the valve element toward the closed position is driven by a phase change of a volume of phase change material disposed in the valve support between the valve su...