ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,143, issued on March 3, was assigned to Haygrove Ltd. (Hereford and Worcester, Great Britain).
"Tunnel structure" was invented by Oscar Chavez (Hereford and Worcester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tunnel structure (10) is described comprising a plurality of cover support members (14) and a cover material (16) supported by and extending over the cover support members (14), the cover support members (14) being of generally arcuate profile and including an upwardly projecting hump (14c), the humps (14c) of the cover support members (14) being aligned with one another such that the cover material (16) defines a ridge (1...