Company Filing History:
Years Active: 1996-1997
Title: Innovations by Sandra Sheehe
Introduction
Sandra Sheehe is an accomplished inventor based in Bryan, Ohio. She has made significant contributions to the field of refrigerant analysis and handling, holding a total of three patents. Her work focuses on improving the efficiency and effectiveness of refrigerant recovery and reuse.
Latest Patents
One of her latest patents is an "Apparatus for analyzing refrigerant properties." This invention allows for the analysis of one or more properties of a refrigerant sample, such as composition and purity, for the purpose of refrigerant recovery and reuse. The apparatus includes a refrigerant cell with a chamber for containing a refrigerant sample and a passage for connecting the chamber to a source of refrigerant in vapor phase. The sample chamber and passage are evacuated and cooled to a predetermined temperature, allowing for the condensation of the refrigerant vapor sample into a liquid phase for measurement.
Another notable patent is the "Refrigerant handling system and method with air purge and system." This system features an air purge chamber and a refrigerant pump that directs refrigerant into the chamber, where it collects in liquid phase while air and non-condensibles gather in the vapor space above. The system includes a purge valve for removing unwanted gases and a refrigerant outlet for drawing liquid refrigerant from the chamber. Additionally, a desiccant adsorbent material is used to prevent the venting of refrigerant vapor with non-condensibles.
Career Highlights
Sandra Sheehe is currently employed at SPX Corporation, where she continues to innovate in the field of refrigerant technology. Her work has been instrumental in developing systems that enhance the efficiency of refrigerant handling and analysis.
Collaborations
She has collaborated with notable coworkers, including Daniel L. Olds and Kenneth W. Manz, contributing to the advancement of technologies in her field.
Conclusion
Sandra Sheehe's contributions to refrigerant technology through her patents demonstrate her commitment to innovation and efficiency. Her work not only enhances the understanding of refrigerant properties but also improves the systems used for refrigerant handling.