Donald J Hemmelgarn

Title: The Innovative Contributions of Donald J Hemmelgarn

Introduction

Donald J Hemmelgarn is a notable inventor based in Minster, OH (US). He holds a total of 4 patents that showcase his innovative spirit and technical expertise. His work has significantly impacted the fields of manufacturing and engineering.

Latest Patents

One of Hemmelgarn's latest patents is for an "Apparatus for manufacturing ovenable paperboard articles." This invention describes a method and apparatus for imparting a desired shape to a paperboard blank. The blank is formed between two dies for a sufficient length of time and with sufficient force to set the form, while moving the dies in tandem along a predetermined portion of a reciprocation path. This design allows for greater production speeds as the formed blank remains in dwell while the dies are moving.

Another significant patent is the "Linear bearing arrangement." This invention provides a bearing arrangement for various apparatus, such as machine tool tables and tool slides. The design features a hydraulic device that preloads the bearing on one side of a movable element, ensuring extreme accuracy in movement. The hydraulic pressure developed allows for a constant preload of the bearing, simplifying machining and setup for accurate linear movement.

Career Highlights

Throughout his career, Hemmelgarn has worked with reputable companies, including the Minster Machine Company and International Paper Company. His contributions to these organizations have helped advance their technological capabilities and product offerings.

Collaborations

Hemmelgarn has collaborated with notable coworkers such as Arthur L Grow and Raymond A Bergman. These partnerships have likely fostered an environment of innovation and creativity, leading to the development of impactful inventions.

Conclusion

Donald J Hemmelgarn's inventive contributions have made a lasting impact in the fields of manufacturing and engineering. His patents reflect a commitment to innovation and excellence, showcasing his ability to solve complex problems through creative solutions.