Company Filing History:
Years Active: 1995
Title: Innovations by William S. Drummond
Introduction
William S. Drummond is an accomplished inventor based in Medford, OR (US). He holds 2 patents that showcase his innovative contributions to the field of plastic container sorting systems.
Latest Patents
One of his latest patents is a "Plastic container sorting system and method." This invention involves a plastic container sorter that moves labeled plastic containers of various colors and transparencies through an inspection zone. A pair of line-scanning color cameras captures respective transmittance and reflectance images of the containers, generating raw image data. The data is then digitized, normalized, and binarized to provide accurate RGB image data for differentiating container image data from background data. The sorting process includes analyzing the containers to determine their opacity and classifying them based on their transparency.
Another significant patent is the "Apparatus and method for sorting post-consumer articles according to PVC." This invention features a sorting apparatus that includes a conveyor belt carrying a stream of randomly arranged articles, some of which are post-consumer plastic articles made of PVC. The articles are irradiated with ultraviolet light, causing the PVC articles to emit phosphorescent light, which is then captured by a video camera in an inspection zone. This method allows for the effective distinction between PVC and other materials, such as PET.
Career Highlights
William S. Drummond is associated with Simco/Ramic Corporation, where he has made significant contributions to the development of innovative sorting technologies. His work has advanced the efficiency and effectiveness of recycling processes.
Collaborations
He has collaborated with notable coworkers, including H Parks Squyres and Casey P Walsh, who have contributed to his projects and innovations.
Conclusion
William S. Drummond's inventive work in plastic container sorting systems demonstrates his commitment to innovation and sustainability. His patents reflect a deep understanding of material properties and sorting technologies, contributing to advancements in recycling and waste management.