Company Filing History:
Years Active: 1978-1986
Title: Innovations by Donald L. Thomsen
Introduction
Donald L. Thomsen is a notable inventor based in Minneapolis, MN (US). He has made significant contributions to the field of surface maintenance technology, holding a total of 4 patents. His work focuses on creating efficient machines that enhance the cleaning and maintenance of various surfaces.
Latest Patents
Thomsen's latest patents include a "Surface maintenance machine with rotary lip" and a "Surface maintenance machine having air recirculation." The first patent describes a surface maintenance machine that features a body supported on wheels and a power source for driving the wheels. This machine includes a driven cylindrical brush and a powered rotary lip that works in conjunction with the brush to effectively project dirt and debris into a hopper. The rotary lip is designed for vertical movement at both ends, enhancing its functionality.
The second patent outlines a powered sweeping machine that is particularly effective for removing both light and heavy litter from surfaces such as parking lots and warehouse floors. This machine consists of a main frame that carries a hopper and a powered brush, which operates through an opening in the lower side of a brush housing. The hopper is divided into a debris receiving compartment and a filter compartment, with an air fan that recirculates air to aid in moving debris efficiently. This innovative design also includes a fan that withdraws a portion of the air from the filter compartment, ensuring effective dust control at the base of the brush housing.
Career Highlights
Donald L. Thomsen has made a significant impact in the field of surface maintenance through his inventive designs. His work at Tennant Company has allowed him to develop machines that improve cleaning efficiency and effectiveness. His patents reflect a commitment to innovation and practical solutions in the industry.
Collaborations
Thomsen has collaborated with notable coworkers such as Harley E. Kroll and Donald L. Olson. These partnerships have contributed to the development of advanced technologies in surface maintenance.
Conclusion
Donald L. Thomsen's contributions to surface maintenance technology through his patents and collaborative efforts highlight his role as an influential inventor. His innovative machines continue to enhance cleaning processes across various industries.