Reactor vessel discharge
CA 2075184 A1 · Owner: Mercer, Ian H. · Inventors: Mercer, Ian H.; Hopper, Martin K.; Green, Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method are provided for containing particulate material e.g.: spent catalyst when evacuating an industrial reactor vessel used in hydrocarbon processing. A containment bag (3) isprovided one end of which is located adjacent the wall of the reactor housing (1) about an outlet (2) thereof. The bag (3) has a panel defining side walls (4, 5), and a top wall (6) and an end panel (7) and assumes a generally cuboid shape when inflated in use. A barrier wall (22) may be constructed in the vicinity of the outlet (2) to provide additional containment. In one embodiment a, vent outlet G is defined in the region adjacent the vessel outlet to permit venting of steam and air whilst …
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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 1, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 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.