This inventor holds 3 USPTO granted patents. Top assignee: Deere & Company. Active years: 1987-1988.
Company Filing History:
Years Active: 1987-1988
Title: Innovations of Frederick D Griswold, Jr.
Introduction
Frederick D Griswold, Jr. is an accomplished inventor based in Dubuque, IA (US). He has made significant contributions to the field of engineering, particularly in the development of innovative sensors and control systems. With a total of 3 patents to his name, his work reflects a commitment to enhancing technology in practical applications.
Latest Patents
One of his notable inventions is the uplift sensor, which is designed to detect uplift from a planar surface. This sensor features a wedge-shaped bracket with an elongated member that contacts the uplift. In response, it depresses a hydraulic piston in a hydraulic cylinder, producing a hydraulic uplift signal. The design includes a spring that biases the elongated member downwardly towards the uplift, ensuring accurate detection.
Another significant patent is the remote control system for earth working vehicles. This system involves ground working tools that are moved by hydraulic motors and cylinders. Each hydraulic motor and cylinder is adjusted through a main control valve, which is controlled by two sets of valves. One set consists of pilot valves that are manually adjustable at the operator's station, while the other set includes electrohydraulic valves controlled remotely via radio signals. Safety switches are integrated to block the transmission of these signals, enhancing operational safety. Additionally, a television camera mounted externally on the vehicle cab transmits images to a screen at a remote location, providing real-time visual feedback.
Career Highlights
Frederick D Griswold, Jr. is currently associated with Deere & Company, a leading manufacturer in the agricultural and construction equipment industry. His role at the company allows him to apply his innovative ideas in practical settings, contributing to advancements in machinery and technology.
Collaborations
Throughout his career, Frederick has collaborated with notable colleagues, including Edwin Lee Whisler and Stuart Lee Neagle. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Frederick D Griswold, Jr. exemplifies the spirit of innovation through his patents and contributions to engineering. His work continues to influence the industry, showcasing the importance of creativity and collaboration in technological advancement.