Abstract: An automated cleaning device for cleaning a floor surface and steps including a housing having a power source and a cleaning mechanism coupled thereto. A drive mechanism is coupled to the power source and can drive the cleaning mechanism. A sensor is provided that couples to the housing for detecting objects that lie along a path of movement being traveled by the apparatus. The apparatus further includes a leg movably coupled to the housing, such that the leg can move from a retracted position in which the leg is disposed in the housing to an extended position. As the leg moves to the extended position, the leg can engage a surface in which the device is positioned on and lift the housing away from the surface.

Abstract: A self-opening bag pack includes a plurality of stacked thermoplastic film bags, each of the bags have longitudinal side gussets and a U-shaped cut-out in an upper portion of the bag forming an open mouth portion and a pair of bag handles. The front and rear walls of each of said bags are corona treated to improve adhesion. An impact line is located immediately adjacent at least a portion of the U-shaped cutout and adheres the rear wall of a first bag in the bag pack to the front wall of a subsequent bag in the pack. Hanging apertures attach the bag pack to a dispensing rack. When the pack is attached to the rack and the first bag is pulled outwardly from the pack, the front wall of a subsequent bag will be adhered to the rear wall of the first bag, thereby causing the first bag to open.

Abstract: A screwdriver handle includes a main body having an end releasably engaged with a screwdriver tip. The main body includes two opposite lateral sides each having a compartment defined therein. Two pivotal covers are pivotally connected to the main body to cover the compartments, respectively. Each pivotal cover includes a holder plate formed on an inner side thereof and having a number of holes for holding screwdriver tips and a number of semi-circle recesses for holding sockets. When a push pin is pushed, two hooks of the pivotal covers are disengaged with two latches of an engaging member that is moved by the push pin such that the pivotal covers pivot outwardly under the action of two elastic members.