Ducting for transporting granular or powder substances under gravity, in particular on sites having silos
CA 1307749 C · Owner: Guery S.A.R.L. (Societe A Responsabilite Limitee) · Inventors: Guerid, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elementary length of the ducting comprises a pair of top and bottom plane panels (2, 3) and a pair of side panels (4, 5) having outwardly projecting longitudinal rims (8 9, 12, 13) on their outside faces, the margins (10 11, 14, 15) of the, top and bottom panels (2 3) and the rims (8,9, 12, 13) of the, side panels (4 5) are predrilled to receive fixing bolts (6). A detection panel (47) is disposed as an inside lining of the bottom panel (3) and is connected via its own rims (48 49) to, the side panels (4, 5), and a tunnel (52) is left between the bottom panel (3) and the detection panel (47) with said tunnel, opening out into the ducting close to a bend.
Read the whole patent
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 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2009.
- 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.