David C Grantz

Title: The Innovative Contributions of David C Grantz

Introduction

David C Grantz is a notable inventor based in Hamilton, OH (US). He has made significant contributions to the field of recycling, particularly in the processing of office waste paper. With a total of 2 patents to his name, Grantz has developed methods that enhance the efficiency of recycling processes.

Latest Patents

Among his latest patents is an innovative apparatus for pulping and deinking. This invention focuses on methods and apparatus for recycling office waste paper that contains ink and laser print particles. The process involves simultaneously pulping the waste paper and dispersing ink particles by kneading the paper in a high solids content aqueous mixture or sludge. After this simultaneous pulping and dispersing, no additional dispersion step is required to create deinked paper stock. The high solids content mixture is then diluted and sent to wet deinking separation devices, such as a froth flotation unit. The treated pulp is subsequently washed, resulting in high-quality pulp stock that is ready for bleaching and paper-making procedures.

Career Highlights

David C Grantz has worked with several companies throughout his career, including Thermo Black Clawson Inc. and The Black Clawson Company. His experience in these organizations has contributed to his expertise in recycling technologies and processes.

Collaborations

Throughout his career, Grantz has collaborated with notable colleagues, including Don L Scott and William J Fondow. These collaborations have likely enriched his work and contributed to the development of his innovative patents.

Conclusion

David C Grantz's contributions to the recycling industry through his patents and career experiences highlight his commitment to innovation. His work in pulping and deinking processes demonstrates the potential for improving recycling methods and promoting sustainability.