Douglas W Hartford

Title: Douglas W. Hartford: Innovator in Low-Density Foam Extrusion

Introduction

Douglas W. Hartford, an inventive mind from Sandown, NH, has made significant contributions to the field of materials processing with his innovative inventions. With two patents to his name, Hartford specializes in the extrusion of low-density foam using water as a blowing agent, demonstrating the potential of sustainable practices in manufacturing.

Latest Patents

One of Hartford's notable patents is the "Process for extruding low density foam using water blowing agent." This invention focuses on utilizing foamable thermoplastic elastomers, such as thermoplastic rubber, which are fed into a heated extruder barrel. Here, the elastomer is melted and compressed by the action of a screw, allowing for the introduction of water as a blowing agent. The resulting mixture is thoroughly combined and cooled to a predetermined temperature before being extruded through a die to produce a foam profile.

His other patent, "Process for extruding low density foam using water as a blowing agent," closely mirrors the first, highlighting the innovative approach of using water instead of traditional chemical blowing agents. This process not only enhances the efficiency of foam production but also aligns with environmentally-friendly manufacturing practices.

Career Highlights

Douglas Hartford is associated with Amesbury Group, Inc., where he continues to contribute to advancements in polymer processing and foam technology. His experience and insights have led to the development of techniques that improve production efficiency and product quality.

Collaborations

Throughout his career, Hartford has collaborated with talented individuals such as Alan J. Demello and Peter E. Mertinooke. These collaborations reflect a commitment to innovation and the sharing of knowledge within the industry, highlighting the importance of teamwork in the pursuit of technological advancement.

Conclusion

With his patents and contributions to the field of foam extrusion using water as a blowing agent, Douglas W. Hartford exemplifies the spirit of innovation. His work not only advances material processing techniques but also promotes sustainability within the manufacturing sector. As he continues his role at Amesbury Group, Inc., the industry eagerly anticipates further developments from this inventive luminary.