Company Filing History:
3 out of 6 
1 out of 39 Years Active: 1976-1981
Title: The Innovative Contributions of Robert E. Ennis
Introduction
Robert E. Ennis is a notable inventor based in West Simsbury, Connecticut, recognized for his significant contributions to the field of coal processing. With a total of three patents to his name, Ennis has developed innovative methods for cleaning and dewatering fine coal, which have implications for the efficiency and environmental impact of coal production.
Latest Patents
Ennis's latest patents include a "Process for Cleaning Fine Coal" and a "Process for Cleaning and Dewatering Fine Coal." The first patent outlines a method for the wet concentration and cleaning of fine coal, involving steps such as desliming and thickening a dilute slurry of fine coal and contaminant particles. This process utilizes a hydrocyclone separator to retain larger particles while concentrating and dewatering the overflow using a sizing screen. The second patent describes a wet mechanical process for cleaning and upgrading fine coal, where an aqueous feed slurry is separated into coal and refuse portions using a spiral gravity concentrator. This innovative approach effectively removes contaminants and ensures the efficient dewatering of coal particles.
Career Highlights
Throughout his career, Robert E. Ennis has worked with prominent companies in the industry, including Linatex Corporation of America and Derrick Manufacturing Corporation. His experience in these organizations has contributed to his expertise in coal processing technologies and has facilitated the development of his patented processes.
Collaborations
Ennis has collaborated with various professionals in his field, including Robert G. Derrick, which has further enriched his work and innovations in coal processing.
Conclusion
Robert E. Ennis's contributions to the field of coal processing through his innovative patents demonstrate his commitment to improving efficiency and sustainability in the industry. His work continues to influence practices in coal cleaning and dewatering, showcasing the importance of innovation in resource management.