Company Filing History:
Years Active: 1994-1999
Title: Innovations by Francis A. Friedmann
Introduction
Francis A. Friedmann is an accomplished inventor based in South St. Paul, MN (US). He has made significant contributions to the field of filtration technology, holding a total of 3 patents. His work focuses on innovative filter designs that enhance fluid flow and filtration efficiency.
Latest Patents
One of his latest patents is for a "Rolled liquid filter using fluted media." This filter apparatus features a fluted filter element housed in a filter housing with a first open end and a second closed end. The filter element is coiled into a cylindrical shape and may include an end cap for support and fluid control. Fluid can flow into the open end and either around the filter to the closed end or through the filter element to the closed end, then back through a central opening in the filter element.
Another notable patent is for a "Pleated filter having a planar sheet of randomly arranged filaments." This invention includes a filter element with a succession of interconnected pleats. The pleats define an outer boundary of the filter element, and a permeable, generally inelastic sheet covers the entire outer boundary. This sheet is adhesively affixed to the pleat tips to maintain spacing and comprises a plurality of randomly arranged plastic filaments that allow for unrestricted fluid flow through the sheet.
Career Highlights
Francis A. Friedmann is currently employed at Donaldson Company, Inc., where he continues to innovate in the field of filtration. His work has contributed to advancements in filter technology, making significant impacts in various industries.
Collaborations
Throughout his career, Friedmann has collaborated with notable colleagues, including Wayne M. Wagner and Daniel T. Risch. These collaborations have fostered a creative environment that encourages the development of cutting-edge filtration solutions.
Conclusion
Francis A. Friedmann's contributions to filtration technology through his innovative patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence the design and efficiency of filtration systems.