Abstract: The present invention generally includes a method for controlling a vehicle docking system that receives a vehicle at a loading dock. The method includes detecting an undercarriage of the vehicle and determining whether the vehicle is restrained based on the detection. The method further enables operation of a door based the determination. The door is adapted to permit access to the loading dock.

Abstract: The present invention generally includes a method for controlling a vehicle docking system that receives a vehicle at a loading dock. The method includes detecting an undercarriage of the vehicle and determining whether the vehicle is restrained based on the detection. The method further enables operation of a door based the determination. The door is adapted to permit access to the loading dock.

Abstract: A window system wherein lower level screens display a reduced size iconic representation of a menu screen. The depression of determined keys or key combinations enables the user to scan the menu in an iconic representation as well as to select the window corresponding to the position of the cursor. The reduced size iconic menu representation may be associated with descriptive text. The system permits selection of new window without the necessity of returning to the menu at the next higher window level. Icons may also be provided to enable skipping of menu levels, to avoid the necessity of returning to a previous menu.

Abstract: An improved ion exchange separation method in which the volume of spent wash liquid and treated feed liquid is reduced by withdrawing a slurry of regenerated resin and wash water from the regeneration column and introducing the slurry into the bottom of the main treating column. The wash liquid is withdrawn from the main treating column along with the de-ionized feed liquid.