US Patent Issued to Advanced Drainage Systems on Sept. 29 for "Conical risers interconnected by radially and circumferentially deflecting latches" (Connecticut Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,091, issued on Sept. 29, was assigned to Advanced Drainage Systems Inc. (Hilliard, Ohio).

"Conical risers interconnected by radially and circumferentially deflecting latches" was invented by Paul R Holbrook (Old Saybrook, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Risers for use in a riser assembly to provide access to below-grade chambers or vaults are provided. Risers may include an angled wall connecting a first end and a second end spaced apart along a central lengthwise axis. In an embodiment, the riser may include a plurality of latches spaced around the first end and the second end with radially extending lips and canted terminal e...