Abstract: A custom U-Bracket bolted into a threaded, fastening stainless steel expanding anchor affixed to molded-in attachment holes on a compression-molded, thermoset composite manhole cover to attach, house and protect a sensor, transmitter, and battery pack completely surrounded by the composite cover’s structurally reinforcing ribs.
Abstract: A composite manhole cover includes a body made of a polymer adapted to accommodate an embedded magnetic material embedded as well as function enhancing electronics.
Abstract: A composite manhole cover includes a body made of a polymer that has a mass of magnetic material embedded there within. The mass of magnetic material is detectable by a metal detector and, therefore, the composite manhole is locatable by the metal detector when the composite manhole cover is obscured by a material such as pavement, dirt, sand, grass/sod, etc.