Everett N Hiestand

Title: The Innovative Contributions of Everett N. Hiestand

Introduction

Everett N. Hiestand is a notable inventor based in Galesburg, MI (US). He has made significant contributions to the field of pharmaceutical testing, holding a total of 3 patents. His work focuses on developing innovative testing apparatuses that enhance the evaluation of pharmaceutical products.

Latest Patents

One of Hiestand's latest inventions is the "Slow Strain Rate Shear Strength Tester for Compact." This apparatus is designed for testing the shear strength of compressed pharmaceutical powders. It features a ram assembly with a reciprocal ram that is horizontally supported on a housing. The ram extends outward and mounts a compression member at its free end. The head arrangement is removable and includes holding members that create a notch for accommodating a compact during compression.

Another significant patent is the "Hardness Impact Tester." This device tests the hardness of tablets formed from pharmaceutical powders. It utilizes a spherical indenter suspended from a wire to impact the tablet, allowing for an evaluation of its hardness. The tablet is held in a split die holder that regulates die wall pressure. The indenter is controlled by an electromagnet and swings through a controlled arc to impact the tablet. The device incorporates photocells to measure the rebound height of the indenter, which is then used to calculate the indentation hardness and strain index.

Career Highlights

Everett N. Hiestand has had a distinguished career at The Upjohn Company, where he has contributed to various innovative projects. His expertise in pharmaceutical testing has positioned him as a key figure in the development of testing methodologies that ensure the quality and efficacy of pharmaceutical products.

Collaborations

Throughout his career, Hiestand has collaborated with notable colleagues, including Stephen Balog and David D. Gleason. These partnerships have fostered an environment of innovation and have led to the successful development of advanced testing technologies.

Conclusion

Everett N. Hiestand's contributions to pharmaceutical testing through his innovative patents have significantly impacted the industry. His work continues to influence the development of testing methodologies that ensure the quality of pharmaceutical products.