Location History:
- Glens Falls, NY (US) (1996)
- Queensbury, NY (US) (1997 - 2006)
Company Filing History:
2 out of 53 
2 out of 210 
1 out of 28 Years Active: 1996-2006
Title: The Innovative Mind of John Pietrangelo
Introduction
John Pietrangelo is a prominent inventor based in Queensbury, NY, renowned for his advancements in material treatment technologies. With a total of five patents to his name, his work has significantly impacted industries that rely on efficient processing of cellulosic fibrous materials.
Latest Patents
Among his latest contributions is a patent for a method of treating material in a continuous digester. This invention features a comminuted cellulosic fibrous material treatment vessel assembly, which consists of a substantially vertical vessel designed for efficient material flow. The vessel includes a cylindrical wall with diameter-changing transitions, promoting optimal liquid flow and material treatment. A novel screen assembly, which features annular surfaces diverging in the flow direction, plays a crucial role in reducing radial compression of the material. This design increases the volume and rate of liquid that can be filtered through the material, significantly improving processing efficiency compared to traditional methods.
Career Highlights
Throughout his career, John has worked with notable companies such as Ahlstrom Machinery, Inc. and Andritz Inc. His experiences in these organizations have greatly contributed to his understanding and innovation in the field of material treatment.
Collaborations
John has collaborated with several professionals in the industry, including Joseph R. Phillips and Jerry R. Johanson. Together, they have contributed to advancements in technology and engineering, particularly in improving processing techniques for fibrous materials.
Conclusion
John Pietrangelo's inventive spirit and dedication to innovation continue to shape the field of material treatment. His patents, particularly in continuous digesting methods, emphasize the importance of efficiency and effectiveness in industrial processes. As he continues to develop new technologies, the impact of his work will undoubtedly be felt across various industries.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.