Abstract: A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes at least one optical sensor assembly configured to sense the movement of the pump assembly, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set.

Abstract: A syringe pump includes a lead screw, a cam, and a grasper. The grasper assembly has first and second graspers arms each having a first end and a second end. The second ends of the first and second grasper arms are configured to engage with the lead screw. The first ends of the first and second grasper arms are configured to engage with the cam such that actuation of the cam toward the grasper assembly causes the second ends of the first and second grasper arms to pivotally approach each other. The second ends of the first and second grasper arms each includes threads to engage the lead screw when the second ends of the first and second grasper arms approach each other. The plunger head coupled to said grasper assembly and operative to drive a plunger of a syringe into a barrel of said syringe.

Abstract: A workpiece to be cleaned or otherwise operated upon, for example a musical cymbal, is supported by a holder having the form of a belt. The belt's lower edge rests on a work surface. Its upper edge supports the workpiece rim, holding the workpiece off the work surface. In use, the belt is constrained to lie in a closed curve by means which removably fasten its outer end to an intermediate place along its length. The belt's perimeter length is adjustable to accomodate workpieces of widely varying sizes. To prevent unwanted movement of the workpiece with respect to the belt, or of the belt with respect to the work surface, the belt is given friction means, which can be bands or strips of rubber, either running lengthwise along the belt or wrapped around it.

Abstract: A hand-held, manually operated book index notch cutter is placed in the book to be notched. The notch cutter has a cylindrical cutting member (405) which moves parallel to and rotates around its axis. The axis of the cylinder is perpendicular to the book leaves being notched. The cutting member rotates and advances within a cutter guide (200), which is attached to a thin baseplate (100). The upper surface of the baseplate is a resilient platen (102) on which rests the stack of book leaves to be cut. These leaves are adjusted in fan and lateral angle with the help of a leaf guide (300), which is movable to allow a range of notch depths. The cutting member is attached to a knob (401) which is pressed and turned. Inside this cutting member-knob assembly is a spring-loaded ejector assembly (500). After a notch is cut, the ejector button (501) is pressed, capturing the paper cuttings and raising the cutting member to the ready position.