Abstract: A respiratory care system includes a user interface. A flow indicator is moveable in response to inhalation and/or exhalation, or both, by a user through the user interface. An electronic indicator is operable in response to an electronic signal transmitted in response to the movement of the floe indicator. Methods of use and assembly are also provided.

Abstract: A method for avoiding generating electric arc when connecting an object to or disconnecting an object from a relay, wherein when connecting the relay to the object, the contact terminal of the relay first electrically contacts with the object, and then the coil terminal of the relay is electrically in contact with the object. When disconnecting the object from the relay, the coil terminal of the relay is first electrically disconnect from the object, and the contact terminal of the relay is then electrically disconnected from the object.

Abstract: A mover (344) moving a stage (238) along a first axis, along a second axis and along a third axis includes a magnetic component (354), a conductor component (356), and a control system (324). The magnetic component (354) includes a plurality of magnets (354D) that are surrounded by a magnetic field. The conductor component (356) is positioned near the magnetic component (354) in the magnetic field. Further, the conductor component (356) interacts with the magnetic component (354) when current is directed to the conductor component (356) to generate a controllable force along the first axis, a controllable force along the second axis, and a controllable force along the third axis. The conductor component (356) can include a split coil design, having a first conductor array (356A) and a second conductor array (356B) that is positioned substantially adjacent to the first conductor array (356A).

Abstract: A solenoid assembly for a circuit breaker having a clapper with an increased mass is provided. The mass, preferably at least one non-ferrous slug, increases the mass of the clapper so that the solenoid response time is slowed. That is, the added mass creates an inertial delay that slows the solenoid clapper as the clapper moves between the first position and the second position. Preferably, the delay is between 48 ms and 60 ms, and more preferably 50 ms. The clapper having a non-ferrous slug may also be incorporated into existing circuit breakers by, for example, coupling the non-ferrous slug to the preexisting clapper, or replacing the clapper with a clapper assembly having at least one non-ferrous slug thereon.

Abstract: An exposure apparatus which aligns a substrate by a stage device for driving a movable element, mounted with a substrate thereon, by using a plane motor. The stage device includes (i) a stator unit having a coil group, and (ii) the movable element, which moves on the stator unit. The stator unit includes (a) an exposure region where the substrate is to be subjected to a process of exposing the substrate, and (b) a measurement region where the substrate is to be subjected to a process of measuring a position of the substrate. The coil group in the stator unit is temperature-controlled independently between the exposure region and the measurement region.

Abstract: The respective magnets of each of a plurality of spaced Halbach magnet arrays in both the X and Y directions that incorporate in the arrays in both directions, the magnets having a field oriented parallel to the Z axis in alternately the positive and negative directions. The magnets in each array in each direction that are not shared by the crossing Halbach magnet arrays each has a horizontal field orientation parallel to either the X or the Y axis with the filed direction in each instance pointing toward the adjacent magnet having its field oriented in the positive Z direction. Additionally, four layers of coils of wire in separate X-Y planes in substantially vertical alignment with each other contain coils each with a selected orientation relative to the X or Y axis such that they provide levitation, lateral motion, as well as roll, pitch and yaw adjustments to the magnet array forming an X-Y stage for precision positioning an object located on the top surface of the magnet.