IP Library Granted Patent US 6,009,421
Granted Patent Utility
US 6,009,421 · App. 08/847,114

Device and method for decreasing web breaks in a printing system based on web tension ratios

Inventors: Zhenhua Xie, Did-Bun Wong, Robert B. Evans
Patented Case View Patent ↗
Granted: Dec 28, 1999 Filed: May 1, 1997
Inventors
Zhenhua Xie
Did-Bun Wong
Robert B. Evans
Assignee (at issue)
R.R. DONNELLEY & SONS COMPANY

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Quick Facts
Patent No.
US 6,009,421
App. No.
08/847,114
Filed
1997-05-01
Granted
1999-12-28
Kind
A