Improved bearing isolator
CA 2357782 A1 · Owner: Isotech Of Illinois, Inc. · Inventors: Coe, Thomas D.; Orlowski, David C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bearing isolator mechanism is adapted to use with a machinery housing having rotatable shaft protruding through the housing. The isolator mechanism comprises a stator surrounding said shaft and being affixed to the housing the stator having a single groove or multiple deep grooves in the stator extended radially from said shaft. The wall ends of the stator forming the sides of the deep groove are located in as close proximity as mechanically possible to the shaft. The groove is as deep and wide as possible within the mechanical constraints of the stators width and the material. The groove in said stator has a hole or orifice in the stator wall that connects said groove in said …
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 October 19, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 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.