US Patent 10159358 Protective nook for open tray

A nook for protecting a surrounding environment from contamination and being removably attached to an outer circumferential periphery of an open chair tray for at least partially encompassing an upper surface of the tray. Included in the nook is an overhanging lip attached to the nook configured for overlapping a portion of the outer circumferential periphery of the tray. A flexible sheet has a substantially planar surface, and a pocket member is disposed on the flexible sheet and configured for placing an object within the pocket member. The nook is formed by bending the sheet into a generally “U”-shaped structure corresponding to the outer circumferential periphery of the tray.