Location History:
- Oceanside, CA (US) (1977)
- Denver, CO (US) (1976 - 1985)
Company Filing History:
3 out of 1,372 
2 out of 9 
1 out of 1,238 Years Active: 1976-1985
Title: Innovations of Hasan F Onal
Introduction
Hasan F Onal is a notable inventor based in Denver, Colorado, recognized for his contributions to the field of engineering. He holds a total of seven patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on advancements in pump technology, particularly in reducing operating noise.
Latest Patents
One of Hasan F Onal's latest patents is a high-speed centrifugal pump and method for operating the same at reduced noise levels. This invention features a single-stage, single-suction design utilizing a closed Francis-vane impeller. The design includes a radially extending vane support portion, which has an outer discharge diameter at least approximately twice the inlet diameter of the impeller's inlet eye. The operating noise is significantly reduced by encasing a single-step helical gear drive arrangement within a common bearing housing alongside the impeller's shaft. Additional noise reduction is achieved by forming the driven helical gear directly on the impeller's shaft to enhance dynamic balance. Furthermore, a plurality of fins mounted on the bearing housing absorbs high-frequency sound wave energy and translates it into low-frequency mechanical vibrations. The fins are encased within a shroud, and a fan is provided to blow ambient air by the fins, disrupting sound wave patterns emanating from the bearing housing. Maintaining tension on the impeller's shaft also reduces vibration and associated noise.
Career Highlights
Throughout his career, Hasan F Onal has worked with prominent companies such as Sundstrand Corporation and Hydrotech, Inc. His experience in these organizations has contributed to his development as an inventor and engineer.
Collaborations
Hasan has collaborated with various professionals in his field, including Clarence R Harmon, enhancing his innovative projects and expanding his knowledge base.
Conclusion
Hasan F Onal's contributions to pump technology and his innovative patents reflect his dedication to engineering excellence. His work continues to influence the industry and improve operational efficiencies in various applications.