US Patent 9327954 Lifting system for display cases

A device for moving store display cases or gondolas which are elevated above a support surface by support posts. The device features a body supported for rolling on the support surface by at least one rotationally engaged wheel. The body has an upper surface dimensioned for an engagement with an underside of said horizontal support member supported by a support post which maintains the support post elevated from the support surface to allow a rolling of the display case or gondola on the wheel of the body. The wheel may have a circumferential edge having rotational rollers rotating traverse to the direction of rotation of the wheel, thereby allowing rolling of the body and supported display, in four directions without steering the wheel.