Company Filing History:
2 out of 1,572 
1 out of 15,471 
Years Active: 2007-2011
Title: Herbert Tobias: Innovator in Aerodynamic Focusing Systems
Introduction
Herbert Tobias is a notable inventor based in Kensington, CA (US). He has made significant contributions to the field of aerodynamic focusing systems, holding a total of 3 patents. His work focuses on developing advanced methods and systems that enhance the efficiency of particle sampling and focusing.
Latest Patents
One of his latest patents is a "Computerized method and system for designing an aerodynamic focusing lens stack." This invention utilizes input from designers regarding various parameters, such as particle size range and gas characteristics, to determine the optimal number of focusing lenses and their respective orifice diameters. The system calculates the orifice diameter of the first focusing lens using the Stokes formula and iteratively determines the orifice diameters of subsequent lenses, outputting the results for the designer's use. Additionally, it can calculate Reynolds numbers and exit nozzle sizes to further improve the stack design.
Another significant patent is the "Pressure-flow reducer for aerosol focusing devices." This invention features a pressure-flow reducer that allows for high-flow, atmospheric pressure sampling while delivering a tightly focused particle beam in a vacuum. The design includes an inlet nozzle for adjusting the sampling flow rate and a relaxation chamber for managing aerosol particles. This innovation decouples pressure from flow, enabling efficient aerosol sampling at rates exceeding 1 liter per minute.
Career Highlights
Herbert Tobias has worked with prominent organizations, including Lawrence Livermore National Security, LLC and the University of California. His experience in these institutions has contributed to his expertise in the field of aerodynamic systems.
Collaborations
Throughout his career, Tobias has collaborated with notable colleagues such as Eric Evan Gard and Bruce Woods. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Herbert Tobias is a distinguished inventor whose work in aerodynamic focusing systems has led to innovative patents that enhance particle sampling techniques. His contributions continue to impact the field significantly.