Company Filing History:
1 out of 95 
1 out of 2,544 
1 out of 81 Years Active: 1989-1998
Title: Innovations by David George Field
Introduction
David George Field is an accomplished inventor based in Dover, NH (US). He has made significant contributions to the field of printing technology, holding 2 patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of his latest patents is the "Fold-off guiding method and device for a folding apparatus." This invention relates to a folder apparatus that includes a first cylinder for transporting a product and a folding cylinder that is rotatably engaged with the first cylinder at a nip. A product guiding device is assigned to a transition area between the surfaces of the first cylinder and the folding cylinder. The guiding device features a smoothing element that includes different sections of product contacting elements angled in opposite directions.
Another notable patent is the "Ink fountain closure system." This apparatus is designed for closing an ink fountain on a printing press. The press has a fountain roll that is rotatable relative to a supply of ink and a flexible fountain blade adjacent to it, spaced apart by a small gap. The size of the gap is controlled by a series of ink keys that move blade sections toward or away from the roll. When the press is to be shut down, the gap is closed by moving the blade against the roll to prevent ink leakage from the fountain. This is achieved by inflating a bladder located adjacent to the blade, which forces the entire length of the blade against the roll, thus closing the gap. The inflatable bladder operates independently of the ink keys, allowing for seamless operation during press shutdown and restart.
Career Highlights
David George Field has worked with prominent companies in the printing industry, including Heidelberg Harris, Inc. and Heidelberger Druckmaschinen AG. His experience in these organizations has contributed to his understanding of printing technologies and has influenced his innovative designs.
Collaborations
Throughout his career, David has collaborated with notable individuals such as David Crowell Emery and Derek C Leck. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
David George Field is a notable inventor whose contributions to printing technology have been recognized through his patents. His innovative solutions address practical challenges in the industry, showcasing his expertise and commitment to advancing technology.