Location History:
- Metamora, IL (US) (1994 - 1995)
- Lenexa, KS (US) (1996)
Company Filing History:
Years Active: 1994-1996
Title: M Kathryn Christensen: Innovator in Noise Reduction Technologies
Introduction
M Kathryn Christensen is a notable inventor based in Metamora, IL (US). She has made significant contributions to the field of noise reduction technologies, holding a total of 3 patents. Her work focuses on innovative solutions for noise cancellation and suppression, particularly in engine applications.
Latest Patents
One of her latest patents is titled "Indirectly Sensed Signal Processing in Active Periodic Acoustic Noise." This invention involves a system that processes an indirectly sensed signal representative of a periodic noise acoustic wave into an input signal for a noise-canceling system. The system converts the indirectly sensed signal into a pulse signal per period, which carries fundamental and harmonic frequency information of the periodic noise. Additionally, a tachometer-type RPM signal is processed in a counter circuit controlled by a logic circuit to produce a signal of one pulse per revolution with a controlled duration. The pulse amplitude is adjusted, low pass filtered, and any D.C. is blocked from the noise-canceling system input.
Another significant patent is for a "Noise Suppression Enclosure for an Engine." This invention addresses the shortcomings of existing noise reduction enclosures used with engines and engine-driven equipment. Many current enclosures fail to meet reduced noise emission requirements and are often expensive and bulky. Christensen's enclosure is designed to be reasonably priced while effectively reducing noise emissions. It features a housing with a generally rectangular configuration, divided into an engine portion and a duct portion, with outlet ducts longer than inlet ducts to enhance noise reduction.
Career Highlights
M Kathryn Christensen is currently employed at Caterpillar Inc., where she continues to innovate in the field of noise reduction technologies. Her work has been instrumental in developing solutions that meet modern noise emission standards.
Collaborations
Throughout her career, she has collaborated with notable colleagues, including Everett Gene Brandt and W Charles Sahm. These collaborations have contributed to her success and the advancement of her inventions.
Conclusion
M Kathryn Christensen is a pioneering inventor whose work in noise reduction technologies has made a significant impact in her field. Her innovative patents reflect her commitment to creating effective and affordable solutions for noise suppression.