Centrifugal filter
CA 2379289 A1 · Owner: Analytical Engineering, Inc. · Inventors: May, David F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A centrifugal filter assembly for filtering particulates from engine oil includes a housing with a threaded connector. A filter (306) disposed within the housing is rotatable relative to the housing about an axis of rotation. The filter has an inlet (314) and an outlet (316) for the oil. A filter head (300) includes a mating threaded connector (312) configured to mate with the housing threaded connector (344). The filter head includes a venturi section (374) in communication with the outlet. The venturi section is configured to draw a vacuum within the housing for drawing oil through the outlet. A brushless direct current motor (326, 328) carried by the filter head has a rotatable …
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 July 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2022.
- 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.