William L Andrews

Title: Innovations by William L Andrews

Introduction

William L Andrews is an accomplished inventor based in Rochester, NH (US). He holds a total of 4 patents that showcase his innovative contributions to various fields. His work primarily focuses on methods that enhance the processing of human waste and improve grinding techniques.

Latest Patents

One of Andrews' latest patents is titled "Methods for processing human waste." This invention provides methods for processing municipal human waste, ensuring that the processed material is over 99% free of pathogenic organisms. The resulting material can be utilized as an organic fertilizer or a 'Class A' organic fertilizer. The methods involve reducing the moisture content of human sludge to less than 30% and processing it through an extruder under specific conditions, including a minimum temperature of about 140°C and an atmospheric pressure differential of about 40 atmospheres. These methods are not only economical but also offer numerous advantages, such as reduced fossil fuel usage, fast processing times, and the production of an odor-free organic fertilizer that is free of many land use restrictions.

Another significant patent by Andrews is the "Abrading method and holding device." This invention provides a method for grinding, polishing, buffing, scaling, and grooving a finish onto and into a workpiece. It allows for the versatility of a hand-held angle grinder to be used while being supported by a clamping device. The invention also includes a means for supporting a hand-held angle grinder from various clamping devices, enhancing the efficiency and effectiveness of the grinding process.

Career Highlights

Throughout his career, William L Andrews has demonstrated a commitment to innovation and problem-solving. His patents reflect his ability to address real-world challenges through inventive solutions.

Collaborations

Andrews has collaborated with fellow inventor William R Deware, contributing to the advancement of their respective fields through shared knowledge and expertise.

Conclusion

William L Andrews is a notable inventor whose work has made significant contributions to the fields of waste processing and grinding techniques. His innovative patents continue to influence and improve various industries.