Filter cloth arrangement in a rotating filter
CA 2083176 A1 · Owner: Nilsson, Harry · Inventors: Jakobson, Folke; Nilsson, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a rotating filter a filter cloth (18) is arranged outside a filter sector skeleton (34, 36). The filter cloth is provided with at least one bending resistant element (37 38) extending through, a pocket (49) arranged in or on the filter cloth (18) to restrain bulging of the filter cloth due to forces perpendicular to the plane of the filter cloth. The filter sector skeleton (34 35, 36, 45) is provided with radially outer support and guide means (43, 44) and radially inner support and guide means (45 46). The, bending resistant element (37 38) is at its ends adapted for, detachable engagement with said means such that the ends are undisplaceable perpendicularly to the support and guide …
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
- Filed May 17, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2013.
- 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.