Apparatus and method for the in-line cropping and/or chamfering of a plastic tube
CA 2028624 C · Owner: Lenters, Egbert · Inventors: Lenters, Egbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and method for the in-line cropping and/or chamfering of a plastic tube. Described is an apparatus for in-line cropping and/or chamfering of a plastic tube which comprises pressure rollers for deforming a tube section and cutting devices to perform the cropping and/or chamfering operation. The control of movement of the pressure rollers and cutting devices is carried out by a combination of a face cam and a rotor disc; said face cam and rotor disc have according to the invention the same diameter and may be given rotary-speeds which are related to each other in any desired way. Control is carried out preferably with use of an interference box. The invention also relates to a …
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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 October 26, 1990 and granted April 19, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2012.
- 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.