This inventor holds 10 USPTO granted patents. Top assignees: Geophysical Systems Corporation, California Institute of Technology, Massachusetts Institute of Technology. Active years: 1976-1989.
Company Filing History:
6 out of 15 
3 out of 4,622 
1 out of 8,568 
Years Active: 1976-1989
Title: Innovations of James A. Westphal
Introduction
James A. Westphal is a notable inventor based in Altadena, CA (US). He has made significant contributions to the field of engineering, particularly in the development of precision instruments. With a total of 10 patents to his name, Westphal's work has had a lasting impact on various industries.
Latest Patents
One of Westphal's latest patents is a positioning device designed to maintain a tilt meter in a horizontal plane despite temperature changes. This apparatus offers greater precision than previous models. The device features leveling screws that hold the upper surface of a base member precisely horizontal. These screws are engaged with nuts made of the same material to eliminate tilting caused by temperature variations. Additionally, the curved glass bubble tubes are mounted in V-grooves, ensuring four-point contact for enhanced accuracy. Another significant invention is a tilt meter that comprises two tilt sensors housed in a durable casing. Each sensor functions as two variable resistors, forming a Wheatstone bridge that outputs a DC signal indicating tilt magnitude and direction. This innovative design allows for precise measurements in various applications.
Career Highlights
Throughout his career, Westphal has worked with esteemed organizations such as Geophysical Systems Corporation and the California Institute of Technology. His experience in these institutions has contributed to his expertise in developing advanced measurement technologies.
Collaborations
Westphal has collaborated with notable individuals in his field, including J. Robert Fort and Donald R. Juilfs. These partnerships have fostered innovation and the sharing of ideas, further enhancing the quality of his inventions.
Conclusion
James A. Westphal's contributions to precision instrumentation and tilt measurement technology have established him as a prominent figure in the field of engineering. His innovative patents continue to influence various industries, showcasing the importance of his work.