David Leo Sigl

Title: **David Leo Sigl: Innovator in Mechanical Systems**

Introduction

David Leo Sigl, an inventive mind based in Waterloo, IA, has made significant contributions to engineering with three patents to his name. His work primarily revolves around mechanical systems, highlighting his expertise and experience in the field.

Latest Patents

David's latest patents showcase his innovative approach to mechanical engineering.

1. **Mechanical Hitch Control Unit** – This invention provides a comprehensive mechanical hitch control system for vehicles. It includes a draft force sensing member, a mechanical hitch control unit, a hitch valve actuator, and a cable transmitting a draft force signal. The system utilizes multiple cams for enhanced control, ensuring a reliable and efficient operation.

2. **Hydraulic Lubrication Filter Circuit** – This patent focuses on a vehicle hydraulic system that integrates a lubrication circuit and a filter circuit. Key components include a suction filter, a return filter, and a complex arrangement of valves to optimize performance and maintain fluid integrity.

Career Highlights

Throughout his career, David has been affiliated with notable companies such as Deere & Company and Sauer-Danfoss Inc. These positions have allowed him to further his expertise and contribute to various engineering projects.

Collaborations

David has worked alongside several talented professionals, including Norman E. Muzzy and Shawn Robert Simons. These collaborations have fostered a rich exchange of ideas and innovations, enhancing the development of solutions in their field.

Conclusion

David Leo Sigl stands out as an accomplished inventor whose latest innovations in mechanical systems support advancements in vehicle technology. His patents reflect not only technical excellence but also a commitment to improving mechanical performance and reliability.