Location History:
- Baldinsville, NY (US) (1994)
- Baldwinsville, NY (US) (2005)
Company Filing History:
Years Active: 1994-2005
Title: Innovations by John W. Harkins
Introduction
John W. Harkins is a notable inventor based in Baldwinsville, NY (US). He has made significant contributions to the field of lighting technology, holding a total of 2 patents. His work focuses on developing advanced lighting solutions that enhance visibility in challenging conditions.
Latest Patents
Harkins' latest patents include a flashlight equipped with a low wattage arc lamp. This hand-held flashlight features a metal halide arc lamp operating between 8 and 22 watts. The lamp is designed with an arc gap of between 0.7 and 1.4 mm and achieves a color temperature at or above 5000° Kelvin. It contains a fill gas that includes mercury and indium, allowing it to produce a point source of white light capable of penetrating dense smoke and fog. The flashlight is equipped with a reflector that houses the arc lamp, providing a collimated beam of high-intensity white light. Additionally, it includes a circuit that supplies a high starting voltage to the lamp and a lower operating voltage once the lamp is sustained. This circuit comprises a battery, a ballast, and a microprocessor that monitors the lamp and battery, ensuring optimal performance.
Another notable patent is for a sub-miniature tungsten halogen lamp with a major inert gas and minor halogen constituent. This low wattage lamp is designed for high efficacy and long life. It features a cylindrical envelope in the T-1 to T-11/4 range and operates at high fill gas pressures with lower halogen gas content.
Career Highlights
John W. Harkins is currently associated with Welch Allyn, Inc., where he continues to innovate in the field of lighting technology. His work has significantly impacted the design and functionality of portable lighting solutions.
Collaborations
Harkins has collaborated with notable colleagues, including Robert J. Wood and Lorand Ernyey, contributing to advancements in their respective fields.
Conclusion
John W. Harkins is a distinguished inventor whose work in lighting technology has led to innovative solutions that enhance visibility in various conditions. His patents reflect a commitment to improving the functionality and efficiency of lighting devices.