High drainage dimensionally stable brownstock washer belt design
CA 2500103 C · Owner: Albany International Corp. · Inventors: Vanhandel, John; Zilker, Gregory D.; Levine, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High drainage dimensionally stable brownstock washer belt and a method of producing the same are disclosed. The belt is produced from a multi-layer woven , fabric that is woven in a high density weave pattern. The fabric may be seemed to , form an endless structure or may be woven endless for belt use. The fabric is made , from one or more of polyphenylene sulfide polyetheretherketone and , KEVLAR®. , The belt exhibits high degree of fiber support and void volume to eliminate sheet , sealing and to facilitate maximum drainage potential and production rate with minimum machine adjustment. Its high fiber support reduces the vacuum requirements in the formation zone resulting in the …
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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 October 24, 2003 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2025.
- 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
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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.