System for controlling the grinding of roast coffee
CA 2039946 C · Owner: Illy, Ernesto · Inventors: Illy, Ernesto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System for controlling the grinding of roast coffee consisting of, - A coffee grinder (3); - A conveyor (T) for transporting ground coffee to packing machinery;, - A test-meter (5) which uses a laser beam (R) and compares ground coffee samples with a reference sample; - A first device (1) which receives ground coffee samples from the stream of ground coffee (2) coming fro- the grinder (3) and releases these samples into a second device; - A second compressed-air operated device (II) which disperses the samples before delivering then to the test-meter (5);, - A third co-pressed-air operated device (III) which protects the lenses (25) of the test-meter (5) from coffee grains, and;, - A fourth …
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 April 8, 1991 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2013.
- 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.