This inventor holds 3 USPTO granted patents. Top assignee: Multipoint Control Systems. Active years: 1991-1992.
Company Filing History:
Years Active: 1991-1992
Title: C David Long: Innovator in Lighting Technology
Introduction
C David Long is a notable inventor based in Redmond, WA, who has made significant contributions to the field of lighting technology. With a total of 3 patents to his name, Long has developed innovative solutions that enhance the efficiency and reliability of lighting systems.
Latest Patents
One of Long's latest inventions is the anti-cycling device for high-pressure sodium lamps. This device utilizes a current sensor to monitor lamp current continuously. When the lamp current indicates a starting or recycling condition, the sensor's output increases, prompting an amplifier to respond accordingly. The second amplifier acts as a voltage comparator, triggering a malfunction signal if the cycling condition persists. An LED indicator illuminates to signal the need for lamp maintenance.
Another significant invention is the constant-current light sensing system. This system employs a constant-current diode in series with the power lead to a photoconductive cell. The diode ensures a fixed current through the cell, optimizing the system's design for maximum efficiency. The housing for the cell is designed for easy mounting on walls or ceilings using adhesive materials.
Career Highlights
C David Long is currently associated with Multipoint Control Systems, where he continues to innovate in the lighting technology sector. His work has contributed to advancements that improve the performance and longevity of lighting systems.
Collaborations
Long has collaborated with notable coworkers such as Frederick H Blake and Arthur G Collin, further enhancing the innovative environment at Multipoint Control Systems.
Conclusion
C David Long's contributions to lighting technology through his patents demonstrate his commitment to innovation and efficiency. His work continues to impact the industry positively, paving the way for future advancements in lighting solutions.