Swivel seal assembly
CA 2320077 A1 · Owner: Kalsi Engineering, Inc. · Inventors: Dietle, Lannie; Kalsi, Manmohan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A swivel seal assembly is defined for providing sealed high pressure fluid communication between relatively rotatable generally coaxial conduits (4 6) , where dynamic runout and static misalignment may occur to one conduit relative to the other. A generally tubular washpipe (66) is mounted in pivotally articulating relation to one conduit, and a generally tubular seal housing (40) is telescoped over the washpipe (66) and mounted in pivotally articulating relation to the other conduit. High pressure staged rotary seals , (41) are supported by the seal housing (40) and maintain bearing and sealing engagement with the washpipe (66) so that the seal housing (40) and washpipe (66) …
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 February 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2021.
- 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.