Company Filing History:
2 out of 20 
1 out of 48 
1 out of 13 Years Active: 1997-2000
Title: The Innovative Journey of James P. Hart
Introduction
James P. Hart, a distinguished inventor based in Portage, Wisconsin, holds a remarkable portfolio of four patents that reflect his commitment to advancing technology in the field of thermoforming. His ingenuity has paved the way for innovative approaches to plastic sheet support structures, showcasing his expertise in mechanical design.
Latest Patents
Hart's latest patents focus on the development of a track-supported rotatable sheet support structure specifically designed for twin-sheet thermoforming. The primary invention involves a multi-legged design that elevates a central ring bearing. This arrangement supports a ring-shaped rotatable plastic sheet support carousel, which is equipped with a ring gear that interacts with a drive system. This design enables precise positioning of the carousel and the thermoplastic sheets it supports. The inclusion of a multi-post vertical press that can transition between interior and exterior posts allows the carousel to efficiently supply and remove plastic sheets. Notably, the design ensures a high degree of parallelism between the molds mounted on the upper and lower platens—critical for accurate twin-sheet thermoforming. Additionally, the incorporation of rollers and an elevated ring track effectively distributes the loads of the outer and inner rings, enhancing operational stability.
Career Highlights
Throughout his career, James P. Hart has contributed his innovative ideas to reputable organizations, including Alltrista Corporation and Penda Corporation. His experiences at these companies have enriched his capabilities as an inventor, allowing him to refine his techniques and solutions within the realm of plastic-forming technologies.
Collaborations
In his journey, Hart has collaborated with notable professionals, including William L. Dresen and Wesley W. Roberts. These partnerships have facilitated a dynamic exchange of ideas and innovative solutions, further driving advancements in their respective fields.
Conclusion
James P. Hart stands out as a notable inventor whose work has significantly impacted the industry of thermoforming. His patents not only demonstrate his technical expertise but also his commitment to innovation. As he continues to develop new technologies, Hart remains a significant figure in the realm of mechanical design and plastic sheet processing solutions.