Company Filing History:
2 out of 35 
1 out of 465 
1 out of 1 Years Active: 1977-1994
Title: The Innovations of Robert A Pontefract
Introduction
Robert A Pontefract is an accomplished inventor based in Chelmsford, MA (US). He holds a total of four patents, showcasing his expertise in developing innovative solutions for various applications. His work primarily focuses on enhancing the functionality and efficiency of liquid level sensing technologies.
Latest Patents
One of his latest inventions is the LPG gauge sensor. This device fits between the units of an existing magnetically-coupled LPG gauge and includes a magnetic field sensing switch, a mechanism to variably position the switch, and an intermediate magnet. The intermediate magnet is positioned on an axle-like mechanism, allowing it to rotate freely and magnetically couple to the existing gauge base magnet. This innovative design enables the gauge unit to visually indicate the level of LPG within the tank, despite the increased distance caused by the sensor unit. The magnetic field sensing switch plays a crucial role in sensing the position of the base or intermediate magnet, thereby determining the liquid level.
Another significant patent is the optical probe shield. This apparatus protects and optically isolates the optical element of the probe used for sensing liquid levels. It features a tubular body made from a rigid, non-reflective material that slides over the optical probe. The design creates a gap between the shield and the probe where liquid collects. The open end of the tubular body is cut at an angle, tapering to a point at the widest part of the gap. This arrangement allows the surface tension of the liquid to draw fluid out of the shield when the liquid level falls below the probe end.
Career Highlights
Throughout his career, Robert A Pontefract has made significant contributions to the field of liquid level sensing. His innovative designs have improved the accuracy and reliability of various sensing applications.
Collaborations
Robert has worked with notable companies such as Scully Signal Company and White Consolidated Industries, Inc. These collaborations have allowed him to further develop his inventions and bring them to market.
Conclusion
Robert A Pontefract's contributions to the field of liquid level sensing through his innovative patents demonstrate his commitment to advancing technology. His work continues to impact various industries, making him a notable figure in the realm of invention.