ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,263, issued on Oct. 21, was assigned to Troxler Electronic Laboratories Inc. (Research Triangle Park, N.C.).
"Nuclear gauge" was invented by William F. Troxler Jr. (Raleigh, N.C.), Wewage Hiran Linus Dep (Raleigh, N.C.) and Robert Ernest Troxler (Raleigh, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gauge is provided for measuring one or more characteristics of a construction material such as a road surface. The gauge includes a detector, a base that carries the detector, and a source housing carried by the base and defining a shield material circumferentially extending inwards. A source rod is positioned within the housing and carries a so...