Belt filter press with improved wedge section, wing roller, belt washer, and belt positioning assembly
CA 2357388 A1 · Owner: Sebright, Brent H. · Inventors: Sebright, Brent H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A belt filter press for dewatering a mixture of liquid and a solid material comprises a frame supporting a pair of operably communicating continuous belts supported on an assembly of rollers. The belts travel over a wedge section leading to a primary roller and a series of secondary rollers. The wedge section comprises a plurality of parallel spaced slat-like supports defining a planar section transitioning to a curved section. The primary roller comprises a plurality of wings over which the belts pass extending radially from the roller axle. Enclosed belt washers with replaceable resilient wipers remove dewatering material adhering to the belts. An automatically adjustable belt positioning …
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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 September 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 17, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2023.
- 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.