Company Filing History:
Years Active: 1978-1986
Title: The Innovative Contributions of David L. Willard
Introduction
David L. Willard, an accomplished inventor based in Cedar Rapids, IA, has made significant contributions to the field of crane technology. With two patents to his name, he continues to push the boundaries of innovation within his industry. Willard's work focuses on improving hydraulic systems and providing operators with better tools for efficient handling.
Latest Patents
David L. Willard's latest innovations include two notable patents:
1. **Hydraulic Circuit for Crane** - This patent describes a hydraulic circuit designed for cranes, which features both lift and boom hoist pumps driven by a single engine. The system includes control valves that allow for independent operation of the lift hooks and the boom angle. An unloading valve is integrated into the boom hoist circuit, ensuring safety by dumping the flow back to the reservoir when excessive pressure is detected. Additionally, a boom limit valve is activated as the boom reaches its upper and lower limits, further enhancing operational safety and efficiency.
2. **Drum Rotation Indicator** - This invention facilitates a crane operator's ability to sense the rotation of a drum, thereby determining the linear movement of a cable wound around it. The device incorporates a cam that rotates with the drum, along with a cam follower that translates this rotation into linear movement. An ergonomically positioned readout plunger allows the operator to easily monitor the movement, while the system includes mechanisms to automatically disengage and re-engage as necessary, ensuring accuracy and responsiveness.
Career Highlights
David L. Willard's career is marked by his association with FMC Corporation, where he collaborates with a team dedicated to advancing crane technology and hydraulic systems. His inventive prowess has played a crucial role in enhancing the functionality and safety of crane operations.
Collaborations
Willard works alongside talented colleagues, including Rickie A. Young and Gerald P. Berger. Together, they foster an environment of innovation, exchanging ideas and expertise to elevate the development of cutting-edge technologies in their field.
Conclusion
David L. Willard's contributions to crane technology exemplify the spirit of innovation. His patents not only improve operational efficiency but also prioritize the safety of crane operations. As he continues his work with FMC Corporation, we can expect further advancements from this dedicated inventor.