This inventor holds 4 USPTO granted patents. Top assignees: The United States of America as Represented by the Administrator of the, United States of America as Represented by the Administrator of NASA, Vigyan, Inc.. Active years: 1993-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 2,546 
1 out of 2,490 
1 out of 5 Years Active: 1993-2001
Title: David W Alderfer: Innovator in Thermal Conductivity and Flame Detection Technologies
Introduction
David W Alderfer is a notable inventor based in Newport News, VA (US). He holds four patents that showcase his expertise in measuring thermal conductivity and flame detection technologies. His innovative contributions have significantly advanced these fields.
Latest Patents
One of Alderfer's latest patents is a device and method for measuring the thermal conductivity of thin films. This device is designed to measure the thermal conductivity of rigid or flexible, homogeneous or heterogeneous thin films between 50 µm and 150 µm thick, achieving relative standard deviations of less than five percent. The specimen is sandwiched between highly conductive upper and lower slabs, each equipped with six thermocouples. The testing occurs within a vacuum environment, ensuring accurate measurements while minimizing heat losses.
Another significant invention is the optical flameout detector. This device monitors the presence of a flame within a combustion chamber by responding to changes in combustor light intensity across two spectral bands. Utilizing a photomultiplier tube and a silicon photodiode, the system can quickly detect any longitudinal movement of the flame front away from the injector. If a change in intensity is detected, the fuel supply is automatically shut off, enhancing safety by limiting unburned fuel.
Career Highlights
Alderfer has worked with esteemed organizations, including the United States of America as represented by the Administrator of NASA. His work has contributed to advancements in both thermal conductivity measurement and combustion safety technologies.
Collaborations
Throughout his career, Alderfer has collaborated with notable colleagues such as Kamran Daryabeigi and Tahani R Amer. Their combined expertise has furthered the development of innovative solutions in their respective fields.
Conclusion
David W Alderfer's contributions to thermal conductivity measurement and flame detection technologies highlight his role as a significant inventor. His patents reflect a commitment to innovation and safety in engineering applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile