Abstract: A mechanical joint system comprises at least a pair of segments swivelable relative to each other. The swivel of the segments are actuated by ligament(s) and the ligament(s) are actuated by either or the combination of “a two-direction control by force transmitting device,” “a right-hand thread and left-hand thread co-existence mechanism” and “an extendible and retractable mechanism.” The three actuation ways simulate relaxation and tension of creatures' ligaments and muscles by using threaded cylinders and nuts, and can replace conventional motor units in order to reduce the size, weight and cost of a robot.

Abstract: This cover comprises a top cover (FIG. 1A) for adhering to a top side of a notebook computer, and a bottom cover (FIG. 1C) for adhering to the bottom side of the notebook, the top and bottom covers sandwich the notebook computer (FIG. 2A, FIG. 2B). The top cover has blades (1, 2, 3) for wrapping the notebook (FIG. 3), and the blades function as a hood for reducing sunlight shining on the LCD panel of the notebook computer (FIG. 6). This cover can function as a half open case (FIG. 4), or a bag for a notebook or laptop computer or other portable devices by linking up a belt or rope (12) to this cover (FIG. 8). The bottom cover has a blade (4) with a hole for securing to the Anti-Theft Lock Slot of the notebook by a hook bolt (FIG. 4, FIG. 7). This mechanism is designed for a more secured connection between the bottom cover and the notebook computer.

Abstract: A holder comprising a case (14) and three hooked devices (20, 22, 24) on belts (16, 18). The holder adheres on a dashboard (FIG. 2) by hooking on windshield vents (10, 12) and center vents (8). The holder becomes a handbag (FIG. 3A) or shoulder bag (FIG. 3B) after released from the dashboard.