This inventor holds 1 USPTO granted patent. Top assignee: Deere & Company. Active years: 1983.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1983
Title: Stephen M. Hillman and Agricultural Implement Leveling
Introduction
Stephen M. Hillman is an inventor associated with Mesa, Arizona, and Deere & Company. His work includes a patent for a leveling system designed to help keep a wheeled agricultural implement’s frame parallel to the ground.
Latest Patents
Hillman is credited with 1 patent: “Leveling System for a Wheeled Implement.” The invention concerns an implement with ground-engaging tools, a frame, a forward hitch structure, support wheels, and wheel-lift cylinders. Its fore-and-aft leveling mechanism connects the frame and hitch structure, while a controller operates the leveling mechanism and wheel-lift cylinders. This arrangement allows the frame to remain substantially parallel to the ground as it is raised or lowered, during both transport and field work.
Career Highlights
Hillman’s patent reflects an engineering focus on coordinating implement height and orientation. By linking the wheel-lift system with fore-and-aft leveling, the design addresses the challenge of maintaining a consistent frame position as operating conditions change.
Collaborations
Hillman is associated with Deere & Company. His listed coworker is Paul Reed Riewerts.
Conclusion
Stephen M. Hillman’s patented leveling system combines wheel-lift control and fore-and-aft adjustment to help keep an agricultural implement level during transport and operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile