US Patent Issued to Bray International on Oct. 20 for "Automatic locking resilient knife gate valve seat" (Indian Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,454, issued on Oct. 20, was assigned to Bray International Inc. (Houston).

"Automatic locking resilient knife gate valve seat" was invented by Rajan Wellington (Chennai, India), Amitartha Sahoo (Balasore, India) and Ramakrishnan Viswanathan (Chennai, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A knife gate valve includes a valve body defining a bore along a bore axis for media flow and a gate for the bore. The valve body has an interior surface with an annular groove formed entirely therein. The annular groove includes a stepped surface and a first locking surface adjacent and contiguous to the stepped surface. A resilient seat ring is inse...