Pneumatic transportation system with a material feeder
CA 1260992 A · Owner: Asea Stal Aktiebolag · Inventors: Brannstrom, Roine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic transportation system for transferring particulate material from a storage container at one pressure level to a receiving unit at another pressure level (e.g. in a feeding system for bed material to a combustion chamber of a PFBC plant). The transportation system incorporates a material feeder comprising a housing having a rotor containing two material chambers. The end walls of the housing and the rotor have cooperating sealing surfaces. The inlet opening of one material chamber is positioned opposite to an inlet opening in the upper end wall of the housing, when the outlet opening of the other material chamber is positioned opposite to an outlet opening in the lower end wall …
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.