Apparatus and method for maintaining uniform fill levels in a packaging machine
CA 1302224 C · Owner: Wylie, Richard Dalton · Inventors: Wylie, Richard Dalton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for maintaining a uniform product level within a package tube formed by a form-fill-seal packaging machine in which a web of packaging material is formed into a vertically-oriented tube structure. The rate of package formation and the level of product within said tube structure is determined by the speed of a drive motor. The level of product within the tube structure is measured without directly contacting the product inside. A control signal is generated in response to the level of product measured. The speed of the drive motor is modified in accordance with the control signal to change the rate of package formation and the level of product within the tube structure.
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.