Location History:
- Oshkosh, WI (US) (1990)
- North Fond du Lac, WI (US) (1994 - 2000)
- Fond du Lac, WI (US) (2003)
Company Filing History:
Years Active: 1990-2003
Title: David D Liegeois: Innovator in Marine Propulsion Technology
Introduction
David D Liegeois is a notable inventor based in North Fond du Lac, WI (US). He holds a total of 5 patents that showcase his contributions to the field of marine propulsion systems. His innovative designs focus on enhancing the efficiency and functionality of internal combustion engines.
Latest Patents
One of Liegeois's latest patents is an exhaust treatment device for an internal combustion engine. This device is designed for marine propulsion systems and features an outer chamber that contains a first inner chamber, which is supported to allow relative movement in response to temperature changes. The exhaust inlet conduit directs exhaust gases from the engine cylinder into the inner chamber, where they are processed before flowing into the outer chamber and subsequently to the exhaust conduit of the marine propulsion system.
Another significant patent is a fine adjustment mechanism for slow-speed operation of an internal combustion engine. This mechanism allows for manual adjustments to the engine's speed, enabling it to operate slightly above idle speed. The design includes a tubular member with threaded surfaces and an adjustment head that can be rotated to modify the engine's idle speed, making it suitable for applications such as trolling.
Career Highlights
Throughout his career, David D Liegeois has worked with prominent companies, including Brunswick Corporation and Kohler Company. His experience in these organizations has contributed to his expertise in developing innovative solutions for marine engines.
Collaborations
Liegeois has collaborated with notable coworkers such as James C Hubbell and Gordon L Stiller. Their combined efforts have likely fostered a creative environment that has led to significant advancements in their respective fields.
Conclusion
David D Liegeois is a distinguished inventor whose work in marine propulsion technology has made a lasting impact. His patents reflect a commitment to innovation and improvement in engine performance.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.