Company Filing History:
3 out of 30 
2 out of 767 
2 out of 11 Years Active: 1976-1995
Title: Hjalmar Fries: Innovator in Moisture Detection and Mixing Technology
Introduction
Hjalmar Fries is a notable inventor based in Spanga, Sweden, recognized for his contributions to technology with a total of eight patents. His innovative work primarily focuses on moisture detection and mixing devices, showcasing his expertise in engineering and design.
Latest Patents
Among his latest patents is a moisture-detecting switching device, which features a dual-ended housing. One end of this housing is closed off by a plug made from a combination of a water-soluble material and a thermosetting resin, creating a frangible structure. The device operates by having an electrical switch with an actuating plunger set against the plug, which holds the plunger in a depressed position. When moisture is detected, it expands the water-soluble material, compromising the integrity of the plug. This leads to the plunger breaking through the weakened structure to actuate the switch. Another significant invention is a submersible mixer, which further demonstrates his innovative capabilities in fluid dynamics.
Career Highlights
Hjalmar has worked with prominent companies such as Itt Flygt AB and Itt Industries, Inc., where he applied his inventive skills to develop advanced technologies. His career reflects a commitment to enhancing industrial processes through innovative solutions.
Collaborations
Throughout his career, Hjalmar has collaborated with talented individuals, including Giuliano Gatti and Roland I Narholm. These partnerships have contributed to the successful development of his inventions and patents.
Conclusion
Hjalmar Fries stands out as a significant figure in the field of invention, particularly in moisture detection and mixing technologies. His patents reflect a deep understanding of engineering principles and a dedication to innovation.