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US 2019/0368154 A1Published application
Composite Manhole Cover with Embedded Detection
AssigneeComposite Access Products GP, LLC
InventorWilliam C. Nunnery
Life of this patent
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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.
Claims20
A composite manhole cover comprising:
- a body made of a polymer;
- and
- a mass of magnetic material embedded within the body, the mass of magnetic material being detectable by a metal detector;
- whereas the composite manhole is locatable by the metal detector when the composite manhole cover is obscured by a material.
1 more element
A composite manhole cover comprising:
- a body, the body formed of a polymer;
- a mass of magnetic material embedded within the body, the mass of magnetic material being detectable by a metal detector;
- and
- at least one electronic component;
- the at least one electronic component placed within the polymer prior to curing of the polymer;
- whereas the composite manhole is locatable by the metal detector when the composite manhole cover is obscured by a material.
3 more elements
A method of locating a composite manhole cover, the composite manhole cover comprising a polymer, the method comprising:
- embedding a mass of magnetic material within a body of the composite manhole cover while molding the composite manhole cover;
- installing the composite manhole cover into a manhole frame;
- and
- scanning an area in which the composite manhole cover is obscured from vision, the scanning of the area using a metal detector, the metal detector signaling when the metal detector passes over the mass of magnetic material, thereby locating the composite manhole cover.
1 more element
Dependencies are inferred from the claim text.