This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Caldwell Manufacturing Company, Other. Active years: 1989-2021.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- San Diego, CA (US) (1989)
- Rochester, NY (US) (1992 - 1993)
- Los Angeles, CA (US) (2021)
Company Filing History:
2 out of 55 
2 out of 834,570 Years Active: 1989-2021
Title: The Innovative Contributions of Donald D. Davis
Introduction
Donald D. Davis is a notable inventor based in Rochester, NY (US), recognized for his innovative contributions to lighting and window technology. With a total of 4 patents to his name, Davis has made significant strides in enhancing everyday devices through his inventive designs.
Latest Patents
One of Davis's latest inventions is a decorative bi-directional portable lighting device. This dual-mode lighting device features decorative electronic illumination and an optional magnifying device. It incorporates at least two sets of light sources, allowing for both decorative lighting and focused illumination of specific areas. The device is designed to illuminate in both upward and downward directions, enhancing its versatility. Additionally, it includes an optional lens for magnification that spans the length and width of the device, positioned between the upward and downward illumination sources.
Another significant patent by Davis is the window sash counterbalance with varying lift. This invention utilizes a multiple spring counterbalance system, which includes both a torsion spring and a tension spring. This combination exerts a lifting force on a window sash, with a spiral rod that converts torque from the torsion spring into a lifting force. The design features a varied pitch along the length of the spiral rod, ensuring a consistent lifting force throughout most of the sash's travel range.
Career Highlights
Throughout his career, Donald D. Davis has worked with Caldwell Manufacturing Company, where he applied his inventive skills to develop practical solutions for everyday challenges. His work has contributed to advancements in both lighting and window technology, showcasing his ability to innovate in diverse fields.
Collaborations
Davis has collaborated with notable individuals such as Kathleen Kennedy Davis and Norman R. Westfall, further enriching his professional journey and expanding his innovative reach.
Conclusion
Donald D. Davis exemplifies the spirit of innovation through his inventive contributions to lighting and window technology. His patents reflect a commitment to enhancing functionality and design in everyday devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile