Company Filing History:
1 out of 42 
1 out of 3 
1 out of 2 Years Active: 1999-2016
Title: The Innovative Contributions of David E. Harhay
Introduction
David E. Harhay is a notable inventor based in Uniontown, Ohio, who has made significant contributions to the field of engineering through his innovative patents. With a total of three patents to his name, Harhay has demonstrated a commitment to advancing technology and improving industrial processes.
Latest Patents
One of Harhay's latest inventions is the Fill Valve Apparatus. This device features a first valve member with a tapered contour facing axially downstream and a second valve member with a corresponding tapered contour facing axially upstream. The second valve member can transition between a closed position, where it abuts the first seat surface, and an open position, where it is spaced downstream. Notably, the second valve member includes a terminal end portion designed as a nose cone, which may have a cavity with a drain opening.
Another significant patent is the Scrap Cutter Assembly, designed for use in a reciprocating press. This assembly includes a cutter carried on a ram that reciprocates relative to a fixed base. The assembly features an exit plate mounted on the press base, which has a tapered bottom surface that supports material as it passes through the press. The shutter spring and backing spring are attached to the exit plate, allowing for efficient cutting of material as the ram descends.
Career Highlights
Throughout his career, David E. Harhay has worked with several companies, including Redicon Corporation and Akron Steel Fabricators Co. His experience in these organizations has contributed to his expertise in developing innovative solutions for industrial applications.
Collaborations
Harhay has collaborated with notable individuals in his field, including Richard A. Mackey and Edward A. Dray. These partnerships have likely fostered an environment of creativity and innovation, leading to the development of his patents.
Conclusion
David E. Harhay's contributions to engineering through his patents reflect his dedication to innovation and improvement in industrial processes. His work continues to influence the field and inspire future inventors.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.