Advancing material of indeterminate length – By fluid current – Floating web
Reexamination Certificate
2005-08-02
2005-08-02
Matecki, Kathy (Department: 3654)
Advancing material of indeterminate length
By fluid current
Floating web
C034S530000, C034S559000
Reexamination Certificate
active
06923359
ABSTRACT:
Methods and apparatus to reduce or eliminate misalignment, wrinkles, and creases in coated web product. A relationship between web outgassing pressure and surface roughness of the web and web transporting rollers is developed. This relationship allows for the control over the web outgassing pressure. The ability to adjust the web tension pressure, as well as the selection of web transporting rollers with prescribed surface characteristics, allows an operator to control the degree to which the web floats over or tracks the web transporting roller. A controller, in response to pressure and tension sensors, can also provide dynamic, closed-loop control of the entire system.
REFERENCES:
patent: 3075679 (1963-01-01), Wadey
patent: 4065044 (1977-12-01), Painter et al.
patent: 4761256 (1988-08-01), Hardenbrook et al.
patent: 4943446 (1990-07-01), Isherwood et al.
patent: 5232141 (1993-08-01), Mittmeyer et al.
patent: 5667418 (1997-09-01), Fahlen et al.
patent: 5950899 (1999-09-01), Bassa
patent: 6032342 (2000-03-01), Kawabe et al.
patent: 6443389 (2002-09-01), Palone
Jones, D.P., “Traction in Web Handling: A Review ” Proceedings of the 6thInternational Conference on Web Handling, Jun. 10-13, 2001, Emral Ltd. UK, 23 pgs.
Schwarz, W., “Thermo-Mechanical Behaviour of the Web during Coating,” Leybold Ag, Hanau, 13 pgs.
Wales et al., “Model For Thermal Creasing In Roll-To-Roll Vacuum Metallising,” Proceedings of the 2ndInternational Conference on Web Coating, Bakish Materials Corp., B.V.T. Ltd., Sep. 9-11, 1988, pp. 204-215.
Lowd Robert Bruce
Vaidyanathan Nandakumar
Goodwin & Procter LLP
Langdon Evan H
Matecki Kathy
Presstek Inc.
LandOfFree
Methods and apparatus for prescribing web tracking in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for prescribing web tracking in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for prescribing web tracking in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3473226