Catalyst unloader apparatus and method
CA 1050737 A · Owner: Browning-Ferris Industries · Inventors: Thompson, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of Disclosure, A catalyst unloader apparatus and method for unloading flowable particle catalyst from reactor tubes using the apparatus. The unloader apparatus forms a reference pressure area in a head adjacent an open end of the reactor tubes to provide a pressure differential for flowing the catalyst from the tubes to the head. A higher pressure discharge of a plurality of lances movable through the tubes is used for dislodging and circulating out catalyst lodged within the tubes of the reactor. -I-
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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 March 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 1996.
- 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.