Abstract: An overhead arm assembly for a patient support apparatus includes a user interface device. The user interface device has a support structure for supporting a personal digital assistant and a charging port for personal digital assistant.

Abstract: A dental air-water handpiece control system for operating a plurality of handpieces and an air-water syringe including a plurality of control pedals equal in number to the number of handpieces and each having a needle valve responding to the distance the pedal moves when operated. Replaceable control modules are also included, with each module servicing a single handpiece and having a main control valve regulating air-water flow to the handpiece it services. Diaphragms control the operation of the main control valves and a laminated base plate defines channels for air and water flow through the unit.A water pressure regulator and an air gauge are also provided in the system.

Abstract: A support is disclosed for holding the tie back and return of a drapery along a wall or other structure. The support includes a base and extension arm which are formed with corrugations defining elongate ribs and grooves adapted to interfit both for guiding the arm for adjustable positioning along the base and also for preventing twisting of the arm relative to the base. Punched-out projections are formed in the base for securing opposite ends of the tie back. Screw fasteners are mounted through elongate slots formed in the arm to accommodate variable arm positions. The screw fasteners self-form threads as they are screwed into extruded shoulders of openings in the base. The arm and base are adapted to be mounted in inverted position for use on either side of the drapery. The extension arm is also adapted to be alternately mounted either in alignment with the base, or offset below the base where the tie back is to hang at an angle.