David R Johnson

Title: The Innovative Contributions of David R Johnson

Introduction

David R Johnson is a notable inventor based in Mechanicsburg, PA (US). He has made significant contributions to the field of window and door assembly design. His innovative approach has led to the development of a unique patent that enhances the functionality and ease of installation of upper window sashes.

Latest Patents

David R Johnson holds a patent for an "Upper window sash with projections for simplified sash installation." This invention features an upper sash of a frame window or door assembly that includes projections extending below the lower rail of the upper sash. These projections engage and cooperate with a notch found on the flange of the jamb of the frame assembly, effectively supporting and restricting movement of the upper sash. This design simplifies the installation process and improves the overall efficiency of window assembly.

Career Highlights

David is currently employed at Capitol Products Corporation, where he continues to innovate and contribute to the field. His work at the company has allowed him to apply his inventive skills in practical applications, further enhancing the products offered by the organization.

Collaborations

Throughout his career, David has collaborated with talented individuals such as Dietrich F Schmidt and J Carson Jackson. These partnerships have fostered a creative environment that encourages the development of new ideas and solutions in the industry.

Conclusion

David R Johnson's contributions to window and door assembly design exemplify the spirit of innovation. His patent for the upper window sash demonstrates his commitment to improving functionality and ease of use in everyday products. His work continues to influence the industry positively.