Company Filing History:
2 out of 158 
1 out of 173 
1 out of 10 Years Active: 1984-1997
Title: G S Castle: Innovator in Powder Metallurgy and Plastic Waste Separation
Introduction
G S Castle is a notable inventor based in London, Canada, recognized for his contributions to the fields of powder metallurgy and plastic waste separation. With a total of 4 patents to his name, Castle has developed innovative methods that enhance material properties and promote sustainability.
Latest Patents
One of Castle's latest patents is the "Powder metallurgy apparatus and process using electrostatic die wall." This invention describes a method for creating a metal composite part by compacting a metal powder composition in a die with electrostatically coated wall surfaces. This process reduces the need for lubricants in the metal powder composition, resulting in a composite with greater density and strength. Additionally, the method includes providing an electrostatic charge to the metal powder composition. Another significant patent is the "Electrostatic separation of mixed plastic waste." This invention involves a rotating tube that processes a mixture of plastic materials with different work functions. As the particles move through the tube, they acquire a triboelectrically induced charge, enhancing the separation process.
Career Highlights
Throughout his career, G S Castle has worked with esteemed organizations such as the University of Western Ontario and Howmedica Corporation. His work has significantly impacted the development of advanced materials and waste management technologies.
Collaborations
Castle has collaborated with notable individuals in his field, including Ion I Inculet and James D Brown. These partnerships have contributed to the advancement of his innovative projects.
Conclusion
G S Castle's work exemplifies the intersection of innovation and sustainability in engineering. His patents reflect a commitment to improving material properties and addressing environmental challenges.