Company Filing History:
Years Active: 1999-2003
Title: Innovations of David Ward Carr
Introduction
David Ward Carr is a notable inventor based in Chelmsford, GB. He has made significant contributions to the field of electron gun technology, holding two patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of Carr's latest patents is focused on electron gun arrangements that feature closely spaced cathodes and electrodes. This invention includes a cathode with a front surface and a control grid positioned in front of it. The control grid is mounted on a Kovar mount via a cylindrical support, while the cathode is supported by another cylindrical support also mounted on a Kovar support. A ceramic material is located between these two supports. The vacuum envelope containing the electron gun includes the Kovar support and a flexible member that creates a vacuum seal, made of copper. This copper member is sealed to a ceramic cylinder using metal flanges. The design allows for the maintenance of spacing between the cathode and grid while accommodating thermal expansion to preserve vacuum integrity.
Another patent involves cavity coupling means that are rotatable in response to linear movement. This actuator is designed for the rotation of coupling means, such as a loop in a high-frequency resonant cavity. It features a rotatable member to which the loop is fixed, along with a rod positioned adjacent to it. The member and rod have interengaging teeth, allowing the rod's inward or outward movement to cause the member, and consequently the loop, to rotate. This compact assembly consists of simple components that are easy to facilitate, with the rod located in a groove within the cavity wall.
Career Highlights
David Ward Carr is associated with EEV Limited, a company known for its advancements in electron technology. His work has contributed to the development of innovative solutions in this specialized field.
Collaborations
Carr has collaborated with notable coworkers, including Alfred Christopher Thwaites and Steven Bardell, who have also contributed to the advancements in their respective areas of expertise.
Conclusion
David Ward Carr's contributions to electron gun technology through his patents reflect his innovative mindset and technical proficiency. His work continues to influence advancements in the field, showcasing the importance of creativity and collaboration in driving technological progress.