William C Trimble

Title: Innovations of William C. Trimble

Introduction

William C. Trimble is a notable inventor based in Columbia, MD (US). He has made significant contributions to the field of lighting technology, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

Trimble's latest patents include a high-frequency inductive lamp and a power oscillator. The high-frequency inductively coupled electrodeless lamp features an excitation coil with an effective electrical length that is less than one half wavelength of the driving frequency, which can exceed 100 MHz, and is preferably as high as 915 MHz. The design of the excitation coil is non-helical and semi-cylindrical, resembling a wedding ring. At high frequencies, the current in the coil forms two loops that are spaced apart and parallel to each other, approximating a Helmholtz configuration. The lamp utilizes a bulb encased in a reflective ceramic cup, which may include structural features for alignment and thermal management. The integrated lamp head comprises a metal matrix composite surrounding an insulating ceramic, with the excitation integrally formed on the ceramic. A novel solid-state oscillator provides RF power to the lamp, capable of delivering over 70 watts of power at over 70% efficiency, with various control circuits to adjust the driving frequency.

The jacketed lamp bulb envelope is another of Trimble's innovations. It consists of a ceramic cup with an open end and a partially closed end that defines an aperture. A lamp bulb is positioned inside the ceramic cup, abutting the aperture, while reflective ceramic material covers a portion of the bulb not abutting the aperture. The ceramic cup may include structural features for alignment and an external flange about its periphery. One example of this design includes a ceramic washer covering the open end of the ceramic cup, defining an aperture, and a method of packing the jacketed lamp bulb envelope involves filling the ceramic cup with a flowable slurry of reflective material and applying centrifugal force to pack the material.

Career Highlights

William C. Trimble is associated with Fusion Lighting, Inc., where he has contributed to the development of advanced lighting technologies. His work has significantly impacted the efficiency and design of modern lighting solutions.

Collaborations

Trimble has collaborated with notable coworkers, including Donald A. MacLennan and Aleksandr Gitsevich, who have also contributed to advancements in the field