Gelatin capsule and method and apparatus for ultrasonically welding thereof
CA 1236020 A · Owner: Scherer (R.P.) Corporation · Inventors: Pace, Joseph A.; Vostrovsky, Ladislav J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method for ultrasonically welding the body and cap portions of capsules together includes randomly storing the filled capsules within a hopper and moving the capsules from the hopper to an ultrasonic welding station. While moving the capsules from the hopper to the ultrasonic welding station the, capsules are oriented in such a way that the overlapping section of each capsule is presented to the ultrasonic welding station in the same relative position. Sufficient ultrasonic power is imparted to the overlapping section of each capsule so that the desired bonding strength is obtained in order to resist the separation of the cap and body portions from each other without, causing damage to …
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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
- Granted May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
- 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
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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.