Abstract: A multipurpose staper includes a base, a sliding anvil assembly mounted on the base and move between a front side position and rear side position, a magazine and tie plate assembly pivoted to the base above the sliding anvil assembly, a press plate, a top cap pivoted to the base and depressed to force down the press plate, causing the press plate to drive a staple out of the magazine and tie plate assembly, enabling the driven staple to be forced into sheets of paper put on the front end of the base when the sliding anvil assembly is moved to the rear side position, or squeezed into a straight shape when the sliding anvil assembly is moved to the front side position, a front cap mounted on the top cap and moved between a first position to lock the press plate and a second position to unlock the press, and a rear cap pivoted to the top cap and integral with a pencil sharpener for sharpening a pencil.

Abstract: The inkjet recording sheet of the present invention comprises a cellulosic sheet support, e.g., paper, bearing on at least one surface thereof an inkjet coating comprising one or more water soluble binders for fixing the images printed with inkjet inks and one or more pigment components having high absorption capacity for absorbing the vehicle of the inkjet inks at a pigment to binder ratio of about 10 to 1.

Abstract: The inkjet recording sheet of the present invention comprises a cellulosic sheet support, e.g., paper, bearing on at least one surface thereof an inkjet coating comprising a co-binder system of water soluble and water insoluble binders which are cross-linked during the coating drying process for fixing the images printed with inkjet inks, and a combination of pigment components having a high absorption capacity for absorbing the vehicle of the inkjet inks.

Abstract: A heat exchanger having replaceable heat exchange surfaces comprises a plurality of tubes formed into a bundle wherein the tubes are arranged linearly side by side. The heat exchanger is provided with a header and reverse header at either end of the tube bundle for directing the flow of fluid therethrough. A heat exchange structure is positionable about the tube bundle in thermal contact therewith. The heat exchange structure has a surface matrix from which extend a plurality of fins for receiving heat conducted from the tube bundle. The heat exchange structure may be conveniently formed into a U-shaped sleeve which may be slid over the tubes of the tube bundle and affixed in place by means of a thermal conductive cement. The tubes may be shaped to provide a streamlined flow of a cooling fluid about the fins thereby increasing the efficiency of heat transfer to the cooling fluid.