Fred E Tarver

Title: The Innovative Mind of Fred E Tarver

Introduction

Fred E Tarver is an accomplished inventor based in Corvallis, Oregon. With a remarkable portfolio showcasing three patents, Tarver has significantly contributed to the world of ink jet technology. His latest inventions exemplify innovative thinking and practical engineering.

Latest Patents

Tarver's latest patents include a method and apparatus for refilling ink jet printer cartridges. This invention features an ink jet printer equipped with a traveling ink jet pen that houses a foam-filled ink chamber. A separate source reservoir possesses an ink outlet nozzle that can be connected to the pen chamber for refilling. A unique probe on the reservoir compresses the foam to reduce its ink capacity during the filling process. Additionally, an electrical contact either on the reservoir or pen detects over-filling and prevents the foam from becoming overly saturated. If overflow occurs, the decompression of the foam allows it to absorb any excess ink.

Another notable patent by Tarver is the pressure-sensitive accumulator for ink-jet pens. This device effectively manages changes in the back pressure of an ink-jet pen reservoir, ensuring that ink does not leak from the print head. The accumulator consists of a flexible bag mounted to a flat curved spring. As the bag expands due to reduced back pressure, the elasticity of the spring contracts the bag to facilitate complete emptying of the ink reservoir.

Career Highlights

Throughout his career, Fred E Tarver has had the opportunity to work with notable companies in the technology sector. He spent significant time at Hewlett-Packard Company and Hewlett-Packard Corporation, where he collaborated on various innovative projects.

Collaborations

In his professional journey, Tarver has collaborated with talented individuals, including Bruce Cowger and Marc A Baldwin. These partnerships have made valuable contributions to his endeavors in developing new technologies.

Conclusion

Fred E Tarver stands out as a pioneer in the field of ink jet technology. With his inventive spirit and dedication to engineering, he has developed patents that enhance the functionality and efficiency of ink jet printer systems. His contributions reflect the importance of innovation in technology and set a standard for future inventors in the industry.