Abstract: A system for accessing internal electrical components of an LED display panel assembly includes a case and a display panel having a plurality of LEDs on an outer surface and electrical components on an inner surface. A linkage assembly is coupled to an inner surface of the case and the inner surface of the display panel and configured for generally translational and generally rotational movement of the display panel from a closed position to an open position for accessing the electrical components.

Abstract: The present invention relates to a compliant end effector for securing an implement or tool such as a spindle to an arm of an industrial robot. The end effector has an internal passageway that extends completely through the end effector for receiving the spindle. The end effector includes a mounting assembly, a gripping assembly, a compliant assembly and a biasing assembly. The mounting assembly has a mounting bracket that rigidly secures the end effector to the robotic arm. The gripping assembly has a support bracket that rigidly secures the spindle to the end effector. The compliant assembly joins the mounting assembly to the gripping assembly, and includes an internal collar with two sets of opposed pivot pins that form first and second pivot axes. The biasing assembly includes a sponge rubber biasing ring with a number of uniformly spaced springs that combine to bias the spindle into a normal biased position.