Company Filing History:
Years Active: 1996-2000
Title: The Innovations of Charles J. Cheever
Introduction
Charles J. Cheever is a notable inventor based in Beaverton, OR (US). He holds a total of 6 patents that showcase his contributions to the field of engineering and technology. His work primarily focuses on advancements in hydrodynamic bearing spindle motors and groove forming processes.
Latest Patents
One of his latest patents is titled "Groove forming processes for shaft outer diameter." This invention describes a method for forming groove patterns on the outer diameter of a shaft used in hydrodynamic bearings of spindle motors. The process involves inserting the shaft between a pair of dies, positioning it correctly, and applying pressure to roll the shaft in multiple directions until the desired groove pattern is achieved.
Another significant patent is the "Self-pressure-balanced hydrodynamic bearing spindle motor." This invention includes a shaft with a thrust bearing plate and an insert surrounding the shaft. The design features annular skewed herringbone grooves and circulation channels for lubricating fluid flow. The face seal created in this design serves to maintain functionality in both static and dynamic states.
Career Highlights
Throughout his career, Charles has worked with various companies, including Sae Magnetics (H.K.) Limited and Synektron Corporation. His experience in these organizations has contributed to his innovative designs and patents.
Collaborations
Charles has collaborated with notable individuals in his field, including Frank Alton Gray and Mark Hazelton. Their combined expertise has likely influenced the development of his patents and innovations.
Conclusion
Charles J. Cheever's contributions to the field of engineering through his patents reflect his innovative spirit and dedication to advancing technology. His work continues to impact the industry positively.