Company Filing History:
Years Active: 1978-1984
Title: The Innovations of Donald Stephen Nemcek, Sr.
Introduction
Donald Stephen Nemcek, Sr. is a notable inventor based in Roselle, IL (US). He has made significant contributions to the field of measurement technology, holding a total of 2 patents. His work reflects a commitment to precision and innovation in the development of advanced instruments.
Latest Patents
One of Nemcek's latest inventions is the Accurate Hand-Held Digital Readout Thermometer. This device measures temperatures ranging from -50°C to +1100°C, with a maximum error of less than 3°C. It features a thermocouple, a temperature-stable power supply, and a digital display that indicates temperature according to a preselected scale. A unique aspect of this thermometer is its latching comparator, which activates a low battery indicator when the supply voltage drops below a certain threshold.
Another significant invention is the Electrometric Apparatus. This apparatus utilizes a measuring device that provides a high impedance DC signal, which varies according to the variable being measured. The signal is amplified and displayed, allowing for accurate readings. The design includes a regulating means with a transistor and a programmable operational amplifier, ensuring reliable performance.
Career Highlights
Nemcek is associated with Cole-Parmer Instrument Company LLC, where he has contributed to the development of innovative measurement solutions. His expertise in creating precise instruments has made a lasting impact on the industry.
Collaborations
Throughout his career, Nemcek has worked alongside talented individuals, including his coworker John J. Selman, III. Their collaboration has fostered an environment of innovation and creativity.
Conclusion
Donald Stephen Nemcek, Sr. exemplifies the spirit of innovation through his patents and contributions to measurement technology. His work continues to influence the field, showcasing the importance of precision in scientific instruments.