Process and apparatus for dispensing liquid colorants into a paint can, and quality control therefor
CA 2029228 A1 · Owner: Dunn-Edwards Corporation · Inventors: Frederickson, Larry; Edwards, Edward D.; Edwards, Kenneth N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automated paint-batching system for producing paint cans of any size and color. The system includes d plurality of paint-batching cells, with each cell having a maching comprised of either one or two dispensing stations. When two dispensing stations are used the two, dispensing stations are: A first tint-station where a, small volumetric dispensing of the base water-base or, oil-base, of the paint is dispensed in order to wet the, bottom of the can at which first station, thereafter, is dispensed all of the liquid colorants making up the formula of the paint can, at which the remainder of the base of the formula of the paint is dispensed and a, second base dispensing station. Each of 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 November 2, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2012.
- 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.