Company Filing History:
Years Active: 2000-2001
Title: Innovations of David C O'Donnell
Introduction
David C O'Donnell is a notable inventor based in Green Bay, WI (US). He has made significant contributions to the field of printing technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and precision of printing processes.
Latest Patents
O'Donnell's latest patents include a groundbreaking printing press with in-line central impression cylinders. This innovative design features a pair of central impression cylinders that rotate about parallel axes. The web, which is printed on these cylinders, is advanced from one cylinder to the other along a path that is perpendicular to the axes. The web is initially advanced from an unwind to the first central impression cylinder along a parallel path, and subsequently from the second cylinder to a rewind. This design minimizes contact with rolls, ensuring that the printed side of the web remains pristine. Additionally, the central impression cylinders and plate rolls are driven by separate servo motors, allowing for precise control over the repeat of printed images.
Another significant patent by O'Donnell is a method and apparatus for registering a pre-printed web on a printing press. This invention allows for the reprinting of a web that has a series of first repeating images with second images that align perfectly with the first. By printing register marks on the web for each first image, the system can sense and compare the positions of these marks with the second images. This ensures that the unwind tension of the web is adjusted to maintain consistent relative positions during the printing process.
Career Highlights
David C O'Donnell is currently employed at Paper Converting Machine Company, where he continues to innovate in the printing industry. His expertise and inventions have significantly impacted the efficiency of printing operations.
Collaborations
O'Donnell has collaborated with notable coworkers such as James E Hertel and Roman J Mudry, contributing to advancements in printing technology.
Conclusion
David C O'Donnell's contributions to the field of printing through his innovative patents demonstrate his commitment to enhancing printing technology. His work continues to influence the industry, making processes more efficient and precise.