James R Pfaltzgraff

Title: James R Pfaltzgraff: Innovator in Trimmer Technology

Introduction

James R Pfaltzgraff is a notable inventor based in Portland, OR (US). He has made significant contributions to the field of trimmer technology, holding a total of 6 patents. His innovative designs have improved the efficiency and functionality of flexible line rotary trimmers.

Latest Patents

One of Pfaltzgraff's latest patents is for an aerodynamic trimmer head designed for use in flexible line rotary trimmers. This invention features a trimmer head with a curvilinear upper head surface and a shroud that extends over the head surface. The design includes a plurality of ribs that extend downwardly and forwardly in the direction of rotation, creating channels between the head surface and shroud. These channels have inlet openings in the upper portion of the shroud and outlet openings at the lower end. As the head and shroud rotate, air is drawn downwardly around the drive mechanism, through the channel inlets, and out through the channels. This process cools the drive mechanism and reduces aerodynamic drag on the line, enhancing the overall performance of the rotary trimmer.

Career Highlights

Throughout his career, Pfaltzgraff has worked with several companies, including Proulx Manufacturing, Inc. and Shindaiwa, Inc. His experience in these organizations has contributed to his expertise in developing innovative trimmer technologies.

Collaborations

James R Pfaltzgraff has collaborated with Richard A Proulx, further enhancing his work in the field of trimmer technology.

Conclusion

James R Pfaltzgraff's contributions to trimmer technology through his innovative patents demonstrate his commitment to improving the efficiency of gardening tools. His work continues to influence the industry and inspire future innovations.