US Patent Issued to Leggett & Platt Canada on Nov. 3 for "Pump diaphragm with improved seal geometry" (Canadian Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,727, issued on Nov. 3, was assigned to Leggett & Platt Canada Co. (Halifax, Canada).

"Pump diaphragm with improved seal geometry" was invented by Horia Blendea (LaSalle, Canada) and Paul Tindall (Harrow, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A diaphragm for use with a pump assembly includes a flange, a cup-shaped wall extending from the flange and defining an interior volume having an opening, a plunger extending from the cup-shaped wall, the plunger configured to be reciprocated by the pump assembly to move the cup-shaped wall, thereby cyclically compressing and expanding the interior volume, and a seal extending from the flange such...