David P Ratcliffe is an accomplished inventor based in Bristolville, OH (US). He has made significant contributions to the field of calibration systems for bulk material feeders. With a total of 2 patents, his work demonstrates a commitment to enhancing the accuracy and efficiency of weigh assemblies.

Latest Patents

One of his latest patents is a "System for checking the calibration of gravimetric feeders and belt scales." This innovative system and method calibrate weigh assemblies of bulk material feeders using test chains of known weight and pitch. The invention features a calibration checking system for a belt-type gravimetric feeder or conveyor, which includes a continuous conveyor belt, support rollers, and a weigh roller. The design ensures that the weigh roller is positioned under the conveyor belt and aligned with the support rollers. The system also incorporates a test chain with a chain pitch that is integrally divisible into the pitch of the weigh span section. Additionally, the conveyor belt is inclined at a specific angle on both sides of the weigh span. The calibration checking system is equipped with load cells and a processor that work together to determine the optimal elevation for the weigh roller, while also analyzing belt tension and weigh load.

Career Highlights

David P Ratcliffe is associated with General Signal Corporation, where he applies his expertise in developing innovative calibration systems. His work has contributed to advancements in the field, enhancing the reliability of bulk material handling.

Collaborations

Throughout his career, David has collaborated with notable colleagues, including John C Homer, III and J Ronald Walsh. Their combined efforts have fostered innovation and progress in their respective projects.

Conclusion

David P Ratcliffe's contributions to the field of calibration systems for bulk material feeders highlight his innovative spirit and dedication to improving industrial processes. His patents reflect a deep understanding of the complexities involved in weigh assemblies, making him a valuable figure in the realm of invention.