Method and apparatus for continuously feeding a drum machine with compressible articles, especially folded cellulose napkins for the wrapping thereof in a thin plastic envelope
CA 2123867 C · Owner: Rent S.R.L. · Inventors: Tommasi, Renzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for continuously feeding a drum machine with compressible articles for the wrapping thereof, comprising: - means for progressively and continuously compressing the packs (1) to be wrapped which are fed by a belt conveyer (10) and, at the sime time transferring them towards the revolver (2) of a wrapping machine by means of a pair of superimposed belt conveyers (4) converging towards the revolver (2) and each being operated by a relevant driving roller (40) parallel to the axis (21) of rotation of the revolver (2), the packs (1) being interposed individually and in succession between said belt conveyers (4); - means for cyclically varying the feeding speed of the belt conveyers …
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 May 18, 1994 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 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.