Roger H Grothaus

Title: Innovations by Roger H. Grothaus

Introduction

Roger H. Grothaus is an accomplished inventor based in Racine, Wisconsin. He has made significant contributions to the field of insect trapping, particularly focusing on methods to effectively capture flying insects such as houseflies. With a total of 2 patents to his name, Grothaus has developed innovative solutions that address common pest problems.

Latest Patents

Grothaus's latest patents include a "Method of Trapping Flying Insects" and a "Trap for Houseflies." The method of trapping common houseflies utilizes a device with an upright array of parallel exposed conductors. These conductors are dimensioned and spaced so that alighting houseflies must contact two of them. The device periodically applies opposing pulsating charges to adjacent pairs of conductors, causing the houseflies to dive downward toward an adhesive-covered sheet or other means to capture and hold the insects. The charges used are about 25 to 40 volts peak, with a frequency of approximately 60 to 600 Hz. Applying these charges as a square wave is highly preferred for optimal effectiveness.

Career Highlights

Roger H. Grothaus is currently employed at S. C. Johnson Son, Inc., where he continues to innovate and develop solutions for pest control. His work has contributed to the advancement of effective insect trapping technologies.

Collaborations

One of Grothaus's notable collaborators is Donald W. Hildebrandt. Together, they have worked on various projects that enhance the effectiveness of insect traps.

Conclusion

Roger H. Grothaus is a notable inventor whose work in insect trapping has led to practical solutions for pest control. His innovative patents reflect his commitment to addressing everyday challenges through technology.