This inventor holds 4 USPTO granted patents. Top assignees: Telsonic Ag, Telesonic Ag, Tetra Laval Holdings & Finance S.a.. Active years: 1997-2004.
Company Filing History:
2 out of 2 
1 out of 1 
1 out of 1,532 Years Active: 1997-2004
Title: The Innovative Contributions of Karl Frei
Introduction
Karl Frei is a notable inventor based in Wil, Switzerland. He has made significant contributions to the field of technology, particularly in the development of devices that enhance industrial processes. With a total of 4 patents to his name, Frei's work reflects a commitment to innovation and efficiency.
Latest Patents
One of Frei's latest patents is a defoaming device for packaging machines. This apparatus effectively defoams a foamable product that is dispersed into containers, such as TETRA REX gable-top cartons. The device creates a sonic shock wave that eliminates most, if not all, bubbles in the foamable product. It features a body that defines a recessed cavity, housing a pair of electrodes. The opening to the cavity is equipped with a radio frequency filter to absorb radio waves generated by the sonic shock wave. This defoaming apparatus is ideally positioned immediately after the filling of the container.
Another significant patent is a device for the continuous disintegration of activated sludge. This method is designed for sewage treatment plants, where microbial sludge is biologically decomposed by bacteria. The resultant sludge is subjected to sonic radiation in a treatment vessel, which helps to split the cell walls of microorganisms. The sonic radiation is generated asymmetrically within the treatment vessel, with an intensity ranging from 500 to 1500 W/m². The sludge is processed in counter-flow through the treatment vessel, with a mean dwell time of 2 to 4 minutes.
Career Highlights
Karl Frei has worked with several companies, including Telsonic AG and Telesonic AG. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
Frei has collaborated with notable individuals in his field, including Klaus Luger and Sevugan Palaniappan. These partnerships have further enhanced his work and expanded the impact of his inventions.
Conclusion
Karl Frei's contributions to technology through his innovative patents demonstrate his expertise and dedication to improving industrial processes. His work continues to influence the field, showcasing the importance of innovation in addressing modern challenges.