James D Symons

Title: Innovations of James D. Symons

Introduction

James D. Symons is a notable inventor based in Southfield, MI (US). He has made significant contributions to the field of engineering, particularly in the development of advanced mechanical systems. With a total of 5 patents to his name, Symons has demonstrated a commitment to innovation and problem-solving in his work.

Latest Patents

Among his latest inventions is a combined vacuum pump, bearing, and seal assembly. This innovative design features a rotor that is relatively rotatable with respect to a stator, incorporating two sets of radially spaced, concentric spiral grooves. As the rotor rotates, one set of grooves effectively forces ambient air between the rotor and stator surfaces, maintaining axial spacing and providing a low-friction bearing. The second set of grooves evacuates air from the vessel through a one-way exit, ensuring that the vessel remains sealed.

Another significant patent by Symons is an improved sealing surface configuration. This design consists of a grid-like pattern of indentations that create uniformly spaced intermediate seal support pads. Each indentation features a sloped wall that converges with adjacent pads, facilitating a hydrodynamic pumping action that distributes lubricant over the pads. This innovation reduces friction and enhances the performance of sealing surfaces.

Career Highlights

James D. Symons is currently employed at GM Global Technology Operations, Inc. His work at this esteemed company has allowed him to collaborate on various projects that push the boundaries of engineering and technology.

Collaborations

Throughout his career, Symons has worked alongside talented individuals such as Arnold O. DeHart and Ronald J. Dershem. These collaborations have contributed to the successful development of his innovative patents.

Conclusion

James D. Symons is a distinguished inventor whose work has significantly impacted the engineering field. His innovative patents reflect his dedication to advancing technology and improving mechanical systems.