Donald J Hartley

Title: The Innovative Contributions of Donald J Hartley

Introduction

Donald J Hartley is a notable inventor based in Indianapolis, IN (US). He has made significant contributions to the field of fan technology, holding a total of 2 patents. His work focuses on improving the efficiency and manufacturing processes of fan constructions.

Latest Patents

Hartley's latest patents include the "Fan Spider with Rake Angle" and "Flexible Bladed Fan Construction." The "Fan Spider with Rake Angle" patent describes a sheet metal construction for a fan spider, where the spider arms carry an integral rib that is flat on its upper surface to mount a fan blade. The innovation lies in the forward canting of the spider arms, which reduces certain stresses in the fan and lowers manufacturing costs. The "Flexible Bladed Fan Construction" patent introduces a flexible fan blade design that incorporates a decamber limiter on each spider arm. This limiter bears against one side of the fan blade to restrict flexing, while avoiding high stress concentrations at the heel edge of the blade.

Career Highlights

Hartley is associated with Wallace-Murray Corporation, where he applies his expertise in fan technology. His innovative designs have contributed to advancements in the efficiency and durability of fan systems.

Collaborations

Throughout his career, Hartley has collaborated with notable colleagues such as William D Barton and Joseph V Matucheski. Their combined efforts have fostered a creative environment that encourages innovation in fan technology.

Conclusion

Donald J Hartley's contributions to fan technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative designs continue to influence the manufacturing processes and efficiency of fan systems.