Abstract: A surgical instrument is disclosed herein. The surgical instrument can include an end effector that includes jaws configured to transition between an opened condition and a closed condition, a plurality of electrodes positioned within the jaws of the end effector, a control circuit, and a memory configured to store an algorithm configured to cause the control circuit to determine an impedance signal based on signals received from the plurality of electrodes, detect a media positioned between the jaws of the end effector based on the determined impedance signal, determine a position of the detected media based on the received signals, and generate an alert associated with the detected media and the determined position.

Abstract: A display apparatus has a configuration of members rotatably mounted in a base. One face of each rotatable member is a different color or pattern to that of the base, whereas the other face is the same as the base. By selectively rotating the members, different letters and/or numbers can be formed by their contrasting faces. The base can be hingeably joined to a backing plate which is adapted to be fixed in any position where the display apparatus is to be located. Alternatively, the backing plate and base can be formed as an integral piece incorporating a flexible section between the backing plate and the base to function as a hinge. With either arrangement, the backing plate and base are pivotable relative to one another, wherein their edges can be clipped together to form a flat member. A plurality of these flat members can be joined together to form a panel or sign board.

Abstract: A sensing head assembly for a multi-color printing press on-line densitometer movably mounted on support members that extend across the width of a printed web of paper that has printed thereon, in addition to the printed matter being monitored, a plurality of spaced-apart color bars that extend across the width of the paper at predetermined intervals along its length. During operation, the sensing head assembly is traversed back and forth across the width of the material in a manner such that a sensing head assembly views a selected color bar at different points along the width and length of the printed web of material. At least two high luminance lamps are mounted within the sensing head housing for projecting light through a window onto a specimen plane of the material being printed to thereby define an inspection zone for illuminating a single selected color bar at any point along the width and length of the printed material.