Cleaning device for cylinders of a printing press
CA 2116711 C · Owner: Stein, Lothar · Inventors: Braun, Michael; Stein, Lothar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a cleaning device for cylinders (1 2) of a printing press, comprising a cleaning cloth (10) which is unwound from a replaceable supply roll (5) on a clean-cloth spindle (7), guided over a press pad movable against the circumference of a cylinder and wound onto a, dirty-cloth spindle (8) and reversible drive means for a, sectional advancement and partial rewinding of said cleaning cloth (10) as well as for rewinding of said cleaning cloth (10) from said dirty-cloth spindle (8) onto said supply roll (9) of said clean-cloth spindle (7). In such a cleaning device a gear wheel (14) is driven by an electronically controlled electric motor (17) and movably mounted and it, …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed March 1, 1994 and granted April 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.