Patrick M Toal, Jr. is an accomplished inventor based in Pearl River, NY (US). He has made significant contributions to the field of three-dimensional printing through his innovative patents. With a total of 3 patents, Toal's work focuses on creating advanced thermoplastic filaments that enhance the capabilities of 3D printing technology.

Latest Patents

Toal's latest patents include a process for creating a polymer filament suitable for use in three-dimensional printing. This thermoplastic filament comprises multiple polymers of differing flow temperatures arranged in a regular geometric pattern. The unique property of these polymers allows for a temperature range where one polymer remains mechanically stable while the other is flowable. This characteristic is crucial for producing thermoplastic monofilament feedstock for 3D printed parts. The mechanically stable polymer ensures geometric stability, while the flowable polymer fills gaps and provides strong bonding between deposited material lines and layers. Additionally, these multimaterial filaments can be produced via thermal drawing from a thermoplastic preform, which can also be three-dimensionally printed. The preform can be designed with complex geometries, enabling the creation of monofilament and fiber with unique decorative or functional properties.

Another notable patent involves a thermoplastic filament that contains an interior channel with a structural or functional thread. This design allows for the incorporation of additional properties, such as electrical conductivity or optical waveguiding, into the filament. The method for producing this filament also emphasizes the importance of the differing flow temperatures of the polymers, which contribute to the overall functionality and stability of the printed materials.

Career Highlights

Toal works for the US Government as represented by the Secretary of the Army. His role involves leveraging his expertise in materials science and engineering to develop innovative solutions for military applications. His patents reflect a commitment to advancing technology in the field of 3D printing, particularly in creating materials that enhance performance and functionality.

Collaborations

Toal has collaborated with notable colleagues, including Eric Dean Wetzel and Larry R Holmes, Jr. These partnerships have contributed to the development of his innovative patents and have fostered a collaborative environment for advancing research in 3D printing technologies.

Conclusion

Patrick M Toal, Jr. is a pioneering inventor whose work in thermoplastic filaments is shaping the future of three-dimensional printing

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