Abstract: A single-piece piston and drive assembly for use in a motor-actuated pump to meter a predetermined amount of lubricant or other liquid. The drive assembly includes a rotatable drive shaft, an eccentric cam insert, a cam rod, and a rocking beam. The rocking beam is coupled to the piston, the cam rod shaft, and a biasing mechanism. When the drive shaft is rotated, movement of the cam rod shaft causes the rocking beam to pivot and move the piston along a stroke to dispense the liquid. The piston operates in association with a flow adjustment stem that regulates the amount of liquid metered by the pump, and a valve assembly for evacuating the liquid from the pump chamber into and through an outlet fitting.Also provided is a flow volume indicator for use in a pump for indicating the amount of liquid being discharged. The flow volume indicator has a main body with an annular side wall, flexible base wall, and a knobbed pointer that is inserted into a bore of the pump body and coupled to the flow adjustment stem.

Abstract: A system and method is provided for preventing the development of an air embolism in an animal during and after a cardiovascular surgical procedure. Also provided is a device that can accurately control the pressure and/or flow of gas into the heart cavity and related blood vessels.

Abstract: A resealable packaging system, providing a multiple reseal capability. A strip of pressure sensitive adhesive is applied over a first area of a substrate. Then a strip of cold seal adhesive is layered over the strip of pressure sensitive adhesive. A strip of cold seal adhesive is then applied to a second area of the substrate, or to another substrate, whether of the same or a different type. The materials are chosen so that, when the substrate is aligned and the strips of cold seal adhesive bonded together, the bond formed between the strips of cold seal adhesive, and the bond between the pressure sensitive adhesive and the cold seal adhesive, and the bond between the cold seal adhesive and the substrate, are stronger than the bond between the substrate and the pressure sensitive adhesive. Thus, when the two areas of substrate, now bonded together by the cold seal adhesive, are peeled apart, the pressure sensitive adhesive remains with the cold seal adhesive and is exposed.

Abstract: An end effector for use with a robot and capable of removing cases from a stack of cases and emptying the selected case of substantially flat, folded articles. The end effector includes a main body designed to be coupled to the robot. A case gripper is mounted on the bottom of the main body. A flattened articles gripper is also coupled to the main body and includes a vacuum chamber with two blades. A dunnage gripper is mounted on one of the sides of the main body. In use, the case gripper picks a full case from a pallet of cases and moves that case to an unloading station. There, the end effector is rotated so that the blades of the flattened articles gripper can be inserted into the case. With the blades inserted, vacuum is supplied to the flattened articles gripper to hold the articles against the gripper. Then, the end effector with the articles is moved to a regripping station where the articles are temporarily placed and regripped.

Abstract: A device for fixing a flexible element to the tubular body of a roller for rolling shutters, guards or blinds, wherein the tubular body has a slot made in its lateral surface and accessible from the outside through a first and a second opening the first oriented at right angles to the axial direction, the second at right angles to the tangential direction, of the tubular body; the radial measurement of the first opening relative to the tubular body is larger than the corresponding measurement of the second opening; the flexible element has at one end of it an enlarged fixing head especially shaped to allow it to be inserted into the slot through the first opening and through the second opening, remaining trapped inside the slot when the flexible element moves through the second opening.

Abstract: A roller for rewinding and tensioning a flexible element, the element having a greater length than width, includes a tubular body to which one end of the flexible element is fixed; a shaft positioned so that it is coaxial to the tubular body, the two being attached in such a way that they may rotate relative to one another about a shared axis; at least one helical spring driving element made of wire, housed in the tubular body, the ends of the spring being connected, by means of support and connecting parts, to the shaft and the tubular body so as to contrast the reciprocal rotation in the direction of unwinding of the flexible element, at least one of the support and connecting parts being able to slide along the axis of the roller on relative guides so as to position itself along the shaft, adapting each time to the variations in the axial length of the spring driving element, the variations being caused by the unwinding and rewinding of the flexible element on the roller.

Abstract: A roller comprises: a support shaft bearing at either opposite end a bush supporting an external tubular element containing the shaft and destined to be a support element of a cover fixed thereto by one end; a motor to recall the roller by setting the tubular element in rotation about the shaft in an opposite direction to that followed during an unwinding of the cover, and constituted by at least two helix springs, separate but cooperating, which are coaxially keyed on the shaft; the ends of each spring being stably fixed on corresponding seats exhibited by a first support keyed on the shaft and a second support, axially fixed and rotatably mounted on the shaft, and solid to the tubular element.