Patent ID: 8226321

Claim:
A parking bumper shell formed of injection-molded plastic, to be later filled with a form setting heavy filling material, comprising: a top wall; first and second side walls respectively extending from opposite sides of the top wall; first and second end walls respectively extending from opposite sides of the top wall, and respectively connecting adjacent ends of the respective first and second side walls, so as to form an open-bottom chamber, wherein each of the respective first and second side walls has a first portion that is outwardly-tapered, and a second portion extending generally vertically from a bottom of that first portion; one or more undercuts formed on one or more of the top wall, first side wall, and second side wall, and extending inward along at least one of the first or second side wall; and at least one inwardly-projecting extension, formed on the top wall, for retainably holding an anchoring post used to secure a filled parking bumper shell to a ground or other supporting surface, wherein the inwardly projecting extension is sized to receive an inwardly projecting extension of a second parking bumper shell when the parking bumper shells are nested.