Abstract: A paper trimmer has a base, a movable arm pivotally connected to the base, a blade fixedly connected to the base, and a movable blade connected to the movable arm. The paper trimmer also has an inverted paper-orientating guide on the lower edge of the base for reducing the angle to which the movable blade must be lifted in order to raise the movable blade above the plane of the paper. The paper trimmer preferably further has one or more of the following: a blade guard, a handle connected to the movable arm and disposed in perpendicular orientation to the movable arm for providing controlled and ergonomic cutting action, an automatically engaging locking mechanism for securing the movable blade to the base when the paper trimmer is not in operation, and titanium-bonded fixed and movable blades for providing a sharp and durable cutting edge.

Abstract: A closure is provided for a medical waste receptacle defining a receptacle opening positioned to receive medical waste. The closure includes a hood positionable adjacent the receptacle opening of the medical waste receptacle. The hood has a limiting surface at least partially defining an access opening facilitating access to an interior of the hood. A door is mounted at least partially within the interior of the hood. The door is mounted for movement about a pivot axis between an opened position and a closed position. In the opened position, a support surface of the door substantially permits access through the access opening of the hood, and in the closed position, the support surface of the door substantially prevents access through the access opening of the hood. The door is biased by gravity to rotate from the closed position toward the opened position. The support surface of the door in the closed position forms an angle at least about 100° with respect to a horizontal plane.