Modular clarifier with integral flocculator
CA 2082391 C · Owner: Aero-Mod Inc. · Inventors: Schmid, Lawrence A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A waste treatment module (10) designed for placement within an aeration basin (12) is provided which performs all of the desirable functions of aeration, flocculation sedimentation, sludge return, effluent collection and skimming. The module (10) includes walls (20) defining an upright chamber (22); the latter is provided with a pair of side marginal slotted inlets (28, 30) with corresponding flocculators (24 26) below the respec-, tive inlets (28 30). Each flocculator (24; 26) is equipped with a plurality of vertically spaced baffle plates (86 88, 90) having, offset openings (92, 94 96, 98) so as to cause solids within the wastewater to traverse a tortuous descending flow path which …
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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 February 7, 1991 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 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.