Company Filing History:
Years Active: 2000
Title: Innovations of David M Hoerr
Introduction
David M Hoerr is an accomplished inventor based in Mazomanie, Wisconsin. He is known for his innovative contributions to portable power systems, particularly in the realm of hand tools. His work has led to the development of a unique system that enhances the efficiency and usability of power tools.
Latest Patents
David M Hoerr holds a patent for a "Portable power system using DC to DC converter." This invention features a portable power system designed for hand tools, utilizing high-voltage power transmission from a battery pack. The system incorporates a DC to DC converter that steps down the transmission voltage to the rated tool voltage. It employs a switching transistor to manage power transmission based on a duty cycle that automatically adjusts according to the tool's current draw and voltage requirements. The converter utilizes synchronous rectification with an inductor-capacitor network to convert a duty cycle square wave into DC power. Additionally, it includes a startup voltage sense feature that powers the converter circuitry only when necessary. The system is equipped with safeguards to prevent fouling or shorting in wet environments and is adaptable for both left and right-handed users.
Career Highlights
David M Hoerr is associated with Fiskars Brands, Inc., where he has made significant contributions to the field of portable power systems. His innovative approach has not only improved the functionality of hand tools but has also enhanced user safety and convenience.
Collaborations
Throughout his career, David has collaborated with notable colleagues, including John Edward Pfeifer and James C Boda. These partnerships have fostered a creative environment that encourages the development of groundbreaking inventions.
Conclusion
David M Hoerr's work exemplifies the spirit of innovation in the field of portable power systems. His patented technology has the potential to revolutionize the way hand tools operate, making them more efficient and user-friendly.