Location History:
- McHenry, IL (US) (1985)
- Palatine, IL (US) (1990 - 1991)
Company Filing History:
3 out of 4 
1 out of 1 Years Active: 1985-1991
Title: The Innovations of Randall R. Coffman
Introduction
Randall R. Coffman is an accomplished inventor based in Palatine, IL (US). He holds a total of 4 patents that showcase his innovative contributions to the field of drying technology. His work has significantly impacted the efficiency and functionality of dryers used in various applications.
Latest Patents
One of Coffman's notable inventions is the Heat Recirculating Dryer. This dryer is designed to extract moisture from goods while recirculating a portion of the air withdrawn from the tumbler cylinder. The air distribution system within the dryer supplies heated air to the tumbler cylinder and includes a burner tube and a heating passageway that directs recirculated air to enhance heating efficiency. Additionally, the air circulating system features an air flow tube that cools the burner tube by directing ambient air around it.
Another significant invention by Coffman is the Dryer Door Mechanism. This mechanism facilitates the opening, closing, and sealing of a dryer enclosure. It features a movable door that rolls along tracks affixed to the door frame. The design allows the door to move both perpendicular and parallel to the enclosure opening, creating an airtight seal when closed.
Career Highlights
Coffman has worked with notable companies such as Norman Dryer Company, Inc. and the Norman Dryer Division of G. A. Braun, Inc. His experience in these organizations has contributed to his expertise in dryer technology and innovation.
Collaborations
Coffman has collaborated with various professionals throughout his career, including his coworker James E. Mitchell. These collaborations have likely enriched his inventive process and led to the development of his patents.
Conclusion
Randall R. Coffman's contributions to dryer technology through his patents demonstrate his innovative spirit and commitment to improving efficiency in this field. His inventions continue to influence the design and functionality of drying systems today.