Location History:
- Chillicothe, IL (US) (1999 - 2005)
- Edwards, IL (US) (2007 - 2009)
Company Filing History:
7 out of 9,471 
2 out of 128 
1 out of 1 Years Active: 1999-2009
Title: Inventor Spotlight: Francis J Raab
Introduction
Francis J Raab, an accomplished inventor based in Edwards, Illinois, has contributed significantly to the field of technology with a total of eight patents to his name. His innovative spirit is reflected in designs that enhance machinery and measurement systems, underscoring his role as a prominent figure in engineering and invention.
Latest Patents
Raab's most recent patents showcase his expertise in developing advanced systems. One of his notable inventions is the **Hybrid Optical Cylinder Position Sensor**. This patent describes a method for accurately locating the position of a movable member that travels along a designated path. By using imaging and calculations, his method determines the position while reducing potential errors based on surface markings.
Another significant patent is the **Hydraulic System Having Variable Back Pressure Control**. This invention outlines a hydraulic system designed for work machines with linking systems. It features a configurable tank and hydraulic actuators, equipped with an independent metering valve that regulates fluid flow, ensuring optimal functionality in various operating conditions.
Career Highlights
Throughout his career, Francis J Raab has worked with noteworthy companies such as Caterpillar Inc. and Shin Caterpillar Mitsubishi Ltd. His experience in these leading corporations speaks volumes about his capability and contributions to the industry. Raab's insights have driven advancements in hydraulic and sensor technologies.
Collaborations
In the course of his work, Raab has partnered with esteemed colleagues, including Willibald G Berlinger and Roger Clayton Fales. Their collaboration exemplifies the strength of teamwork in innovative ventures, allowing for the sharing of ideas and techniques that propel advancements in their respective fields.
Conclusion
Francis J Raab stands out as a dedicated inventor whose work has aimed at improving efficiency and accuracy in various applications. His eight patents reflect his inventive prowess, and his collaboration with recognized professionals in the industry highlights the collective effort required to drive innovation forward. As technology continues to evolve, Raab's contributions will undoubtedly leave a mark on the engineering landscape.