David Gelfand

Title: Innovations by David Gelfand in Differential Mechanisms

Introduction

David Gelfand, an accomplished inventor based in Aurora, CA, has made significant contributions to the field of mechanical innovations, specifically in the area of differential mechanisms. With a total of two patents to his name, his work focuses on improving automotive functionality, emphasizing efficiency and reliability.

Latest Patents

One of Gelfand's key inventions is a disconnecting differential side gear mechanism. This innovative design features a disconnectable differential assembly that reduces the axial length while allowing the side gear to be disconnected from an axle shaft through a clutch unit. The mechanism comprises various components that are axially aligned and concentric, which contribute to minimizing the axial length. The assembly includes an output hub that is splined on the axle shaft, which can be actuated by an axially shiftable armature into toothed engagement with the side gear using respective axially extending teeth. The design also incorporates radially extending flanges that are aligned with the teeth, ensuring efficient force transmission at a consistent diameter. A thrust bearing positioned between the flanges allows the output hub to rotate relative to the armature, while also supporting the side gear for rotation on the axle shaft, thus improving radial alignment.

Career Highlights

David Gelfand is associated with Magna Powertrain Inc., a leading company in the automotive sector known for its advanced powertrain systems. His role at Magna has allowed him to be at the forefront of innovative automotive technologies, contributing to the development of cutting-edge mechanical solutions.

Collaborations

Throughout his career, Gelfand has collaborated with skilled professionals such as Dusan Milacic and Sean A Steele. These partnerships have facilitated the exchange of ideas and expertise, enriching the innovation process and leading to impactful advancements in automotive technology.

Conclusion

David Gelfand’s inventions in disconnecting differential mechanisms have paved the way for more efficient automotive systems. His valuable contributions to Magna Powertrain Inc. highlight the importance of innovation and collaboration in driving the future of engineering solutions. As he continues to work alongside talented coworkers, Gelfand remains a significant figure in the realm of automotive inventions.