Company Filing History:
6 out of 7 
15 out of 832,843 Years Active: 1976-1986
Title: The Innovative Mind of Harold P. Dahlgren
Introduction
Harold P. Dahlgren, an inventive genius based in Dallas, TX, has made significant contributions to the printing industry throughout his career. With a remarkable portfolio of 21 patents, Dahlgren's innovations have revolutionized the way ink is metered and sheets are registered in printing presses.
Latest Patents
Among his noteworthy inventions, two recent patents stand out. The first is an "Ink Metering Apparatus," which is designed for printing presses. This apparatus allows for an excess of ink to be applied to a resilient roller's surface, with a metering member that expertly controls the thickness of the ink film. The meticulous design includes a polished metering edge and support surface that ensure precise ink application and clean separation from the roller. This innovation guarantees consistent film thickness even with varying press speeds.
The second patent, the "Planetary Conveyor System," introduces an automatic sheet register control system. Utilizing photocells for position sensing relative to the printing cylinder, this system employs computers to generate signals that adjust conveyor bands, ensuring accurate sheet registration. These patents exemplify Dahlgren's commitment to enhancing the efficiency and quality of printing processes.
Career Highlights
Dahlgren's career has been marked by his association with companies such as Dahlgren Manufacturing Company, Inc. His work has not only advanced the technology within the industry but has also positioned him as a distinguished inventor. His patents reflect a deep understanding of mechanical engineering and a desire to optimize performance in printing technology.
Collaborations
Throughout his career, Dahlgren has collaborated with notable individuals, including James E. Taylor and John W. Gardiner. Their collective expertise and teamwork have undoubtedly played a role in the development of Dahlgren's innovative patents and have contributed to the advancements in the printing sector.
Conclusion
Harold P. Dahlgren's contributions to the field of printing through his 21 patents demonstrate his innovative spirit and dedication to improving technology. As the industry continues to evolve, his inventions serve as foundational elements that enhance both efficiency and quality in printing processes. Dahlgren's legacy as an inventor will undoubtedly influence future advancements in the field.