Chris J Rauwendaal

Title: Innovations by Chris J Rauwendaal

Introduction

Chris J Rauwendaal is a notable inventor based in Los Altos Hills, California. He has made significant contributions to the field of extrusion engineering, holding a total of four patents. His work focuses on improving mixing processes in extruders, which are essential in various manufacturing applications.

Latest Patents

Rauwendaal's latest patents include an innovative intermeshing element mixer. This invention features a mixing section designed for extruders, incorporating a screw with a central shaft and a floating annular sleeve. The sleeve contains mixing elements that protrude radially inward toward the screw, while the central shaft has mixing elements that extend outward toward the sleeve. This configuration creates multiple regions of reorientation in the material, leading to enhanced dispersive mixing.

Another significant patent is for a screw extruder equipped with improved dispersive mixing elements. This design includes a barrel with a bore that defines an inner surface and one or more extruder screws positioned within it. The extruder screws feature a central shaft and multiple screw flights, along with dispersive mixing elements that interact with the barrel's inner surface. This interaction forms progressively narrowing passages, allowing the material to experience high elongational and shear stress, which is crucial for effective mixing.

Career Highlights

Chris J Rauwendaal is the founder of Rauwendaal Extrusion Engineering, Inc., where he applies his expertise in extrusion technology. His career is marked by a commitment to advancing the efficiency and effectiveness of mixing processes in manufacturing.

Collaborations

Rauwendaal has collaborated with notable professionals in his field, including Paul J Gramann and Bruce A Davis. These collaborations have contributed to the development of innovative solutions in extrusion engineering.

Conclusion

Chris J Rauwendaal's contributions to the field of extrusion engineering through his patents and innovative designs have significantly impacted manufacturing processes. His work continues to influence the industry, showcasing the importance of effective mixing in extruder technology.