US Patent 10405659 Folding chair armrest with acoustic enhancing cell phone holder

An armrest assembly for use on a folding chair. The armrest assembly has a molded plastic body with a top surface and an underside. The armrest assembly is provided with a phone holder construct that amplifies sounds produced by a cell phone. An access opening is formed in the top surface of the armrest. A receptacle for holding the cell phone is positioned under the access opening. The receptacle has a base that is smaller than the access opening. Side walls extend from the access opening to the base, therein creating a tapered construct capable of amplifying sounds generated within the receptacle by the cell phone. Protrusions are formed on the base of the receptacle. The protrusions support the cell phone in the receptacle and prevent the speakers of the cell phone from becoming muffled by directly contacting the base within the receptacle.