For his carpentry exam, an aspiring master carpenter created TV/bar furniture in which the bar element is provided with a rotatable 90° bar hatch. Rotary dampers of the type FYN-U1-R/L303 make opening and closing the hatch easier, but also protect it against overloading of the end positions. The brakes also prevent fingers becoming trapped. The so-called limited rotary dampers still find sufficient working angle up to a maximum of 115°. For other cases, ACE has fully rotational rotary dampers available.