Company Filing History:
Years Active: 1996-1999
Title: Innovations of Randall M. Crippen
Introduction
Randall M. Crippen is an accomplished inventor based in Chicago, IL. He has made significant contributions to the field of electrical engineering, particularly in the development of innovative switch assemblies and variable resistance modules. With a total of 2 patents to his name, Crippen's work showcases his expertise and creativity in designing practical solutions for modern technology.
Latest Patents
Crippen's latest patents include an electrical switch and a variable resistance module for vehicle brake pedals. This invention provides a method and apparatus for actuating an electrical switch while offering a variable electrical resistance that can sense the displacement of a movable member. The design features a housing that accommodates the electrical switch, a variable resistance element, and an actuator with a body member and a transverse cylindrical sleeve. The electrically conductive wiper is coupled to the actuator, allowing it to contact the variable resistance element, which changes with the pivotal movement of the actuator. Additionally, a guide surface within the housing ensures that the actuator and wiper maintain a fixed relationship with the variable resistance element during operation.
Another notable patent is the hinge-operated switch assembly. This assembly is activated by a shaft or hinge pin and includes a cam member that rotates with the shaft. An actuating band is connected to the cam member, featuring an engagement portion that interacts with a lever. This lever can move to enable contact with an electrical switch, thereby making or breaking the desired electrical circuit. A sealing insert is also included to provide a waterproof seal between the hinge shaft and the switch assembly.
Career Highlights
Randall M. Crippen is currently employed at Illinois Tool Works Inc., where he continues to innovate and develop new technologies. His work has had a significant impact on the industry, particularly in enhancing the functionality and reliability of electrical components.
Collaborations
Throughout his career, Crippen has collaborated with notable colleagues, including Mario M. Orrico and Earl J. Genz. These partnerships have contributed to the successful development of his inventions and have fostered a collaborative environment for innovation.
Conclusion
Randall M. Crippen's contributions to electrical engineering through his patents demonstrate his commitment to innovation and problem-solving. His work continues to influence the industry, making him a noteworthy figure in the field of inventions.