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Joseph Kempf

John Perry Diamond

An injection molding machine is illustrated with tie bars extending from a stationary die plate. A movable die plate is slidably movable along the tie bars. Corrugated elastic sleeves cover the tie bars and are seated at opposite ends on the die plates to keep molded parts from contacting the tie bars when the mold is open and thereby protect the molded parts from contamination by lubricant on the tie bars. In the embodiment shown, the corrugated sleeve is made of plastic material and is split longitudinally to facilitate assembly. The split sleeve construction enables the sleeves to be assembled sidewise onto the tie bars, and held snugly onto the bars by wires or cable ties.

Apparatus for preventing molded parts from being contaminated by

A dialysis needle or the like comprises a tube with a razor edged cutting blade extending diametrically across its forward end. The blade has a generally 'V' shape with a pair of razor sharp cutting edges converging forwardly from opposite sides of the tube and terminating in a needle-sharp point. A pair of diametrically opposed, smooth, tissue-spreading ribs are located in a plane normal to the cutting edges and converge forwardly from opposite sides of the tube to positions immediately rearwardly adjacent of the point. Two specific embodiments are described: an all-stainless-steel version; and a plastic version with a cutting blade insert.

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Roselle, IL, United States of America

Joseph Kempf