Abstract: A door operator comprises a door driver for opening and closing a door, a controller including a microprocessor connected to and controlling the door driver, a graphical user interface comprising a display screen with touch select input coupled to the microprocessor to display information stored in the controller and to receive instructions selected from the display screen by a user, and a memory module coupled to the microprocessor and storing code executed by the microprocessor. The microprocessor under control of the code displays to the user various menu items on the graphical user interface display and enables the user to select among the menu items using the display screen with touch select input such that the microprocessor derives a control signal. Circuitry is configured to receive the control signal from the microprocessor and to carry the control signal to the door driver.

Abstract: A door operator comprises a door driver for opening and closing a door, a controller including a microprocessor connected to and controlling the door driver, a graphical user interface comprising a display screen with touch select input coupled to the microprocessor to display information stored in the controller and to receive instructions selected from the display screen by a user, and a memory module coupled to the microprocessor and storing code executed by the microprocessor. The microprocessor under control of the code displays to the user various menu items on the graphical user interface display and enables the user to select among the menu items using the display screen with touch select input such that the microprocessor derives a control signal. Circuitry is configured to receive the control signal from the microprocessor and to carry the control signal to the door driver.

Abstract: A device for heating infusion and transfusion solutions includes an automatically temperature controlled, electrically heated heat exchange unit having an exposed cylindrical outer surface provided with a helical groove removably receiving and holding with a clamping effect a flexible infusion tube through which the solution to be heated flows. A sleeve of thermal insulation material having its inner surface covered with an aluminum foil closely surrounds the outer surface of the unit and the tube seated in the groove. Safety clamps secured to casing portions at opposite ends of the heat exchange unit insure that the tube is held in the groove.