Company Filing History:
Years Active: 1996-2000
Title: Innovations of Frank Alton Gray
Introduction
Frank Alton Gray is a notable inventor based in Portland, OR (US). He has made significant contributions to the field of engineering, particularly in the development of hydrodynamic bearing spindle motors. With a total of 4 patents to his name, Gray's work showcases his expertise and innovative spirit.
Latest Patents
One of Gray's latest patents is focused on groove forming processes for shaft outer diameter. This process involves forming a groove pattern on the outer diameter of a shaft, which is essential for use in hydrodynamic bearings of spindle motors. The method includes inserting the shaft between a pair of dies, positioning it correctly, and applying pressure to roll the shaft in both directions until the groove pattern is formed.
Another significant patent is for a self-pressure-balanced hydrodynamic bearing spindle motor. This invention features a shaft with a thrust bearing plate and an insert surrounding the shaft. The design includes annular skewed herringbone grooves and circulation channels for lubricating fluid flow. The face seal created in this motor design enhances its functionality in both static and dynamic states.
Career Highlights
Throughout his career, Frank Alton Gray has worked with various companies, including Sae Magnetics (H.K.) Limited and Synektron Corporation. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his innovative ideas.
Collaborations
Gray has collaborated with notable individuals in his field, including Charles J. Cheever and Mark Hazelton. These partnerships have likely influenced his work and contributed to the success of his inventions.
Conclusion
Frank Alton Gray's contributions to the field of engineering through his patents and collaborations highlight his innovative capabilities. His work continues to impact the development of hydrodynamic bearing spindle motors and related technologies.