Fluidized bed bottle filling system
CA 2073408 C · Owner: Mcneil-Ppc, Inc. · Inventors: Jones, Jay J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and apparatus for counting tablets and feeding a predetermined number of tablets to a bottle are disclosed. The present invention creates a fluidized bed of tablets above a plurality of slat bars each of, which comprises a plurality of cavities having a vacuum port connected to a source of negative pressure. The vacuum draws individual tablets down from the fluidized bed and into the cavities in the slat bar thereby, ensuring efficient and complete filling of each cavity with a tablet. Upon exit from the fluidized bed the, vacuum flow is disconnected and, in certain embodiments a positive airflow may be flowed through the vacuum ports to eject the tablets into means for feeding the …
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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 July 9, 1992 and granted May 19, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2014.
- 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.