Company Filing History:
Years Active: 1978-1990
Title: The Innovative Contributions of David F. Fiedler
Introduction
David F. Fiedler is a notable inventor based in Richmond, Indiana. He has made significant contributions to the field of engineering, particularly in the design of valve stem sealing elements and piston pin bores. With a total of 2 patents to his name, Fiedler's work showcases his expertise and innovative spirit.
Latest Patents
One of Fiedler's latest patents is the "Frustoconical Valve Stem Sealing Element." This invention features a valve stem seal assembly that includes a rigid cylindrical shell and an annular resilient seal body contained entirely within the shell. The integral frustoconical sealing element is designed to engage a valve guide of an internal combustion engine. Upon installation, the outer surface of the sealing element bends radially inward to effectively seal the top surface of the guide. The seal body also includes a stem sealing aperture, which can engage the valve stem without a spring. Additionally, the shell contains a circumferential array of tangs for retention on the guide.
Another significant patent by Fiedler is the "Piston Pin Bore and Method of Finishing." This invention involves a piston that comprises a piston pin bore adapted to partially contain a piston pin. The bore is finished using a roll burnishing process that prestresses, smooths, and distorts the bore into a predetermined hourglass configuration.
Career Highlights
Throughout his career, David F. Fiedler has worked with reputable companies, including Dana Corporation and J. Dudley Binford. His experience in these organizations has contributed to his development as an inventor and engineer.
Collaborations
Fiedler has collaborated with notable individuals in the industry, including J. Dudley Binford and Philip L. Bond. These collaborations have likely enriched his work and expanded his innovative capabilities.
Conclusion
David F. Fiedler's contributions to engineering through his patents demonstrate his commitment to innovation and problem-solving. His work continues to impact the field, showcasing the importance of creativity in engineering design.