Bearing wiper seal
CA 2001408 A1 · Owner: Ingersoll-Rand Company · Inventors: Albert, Gregory P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sealing device for providing a seal between two relatively rotatable bearing components includes an annular ring having a radially inner and a radially outer flange. The flanges extend axially to define an annular channel. An annular wiper element is disposed in the channel so as to axially extend just beyond the flanges. The annular ring is positioned axially adjacent to rotational inner face between the two bearing components so that the annular ring rotates relative with one bearing component and the wiper element is in surface contact with the other bearing component.
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 25, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 25, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2011.
- 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.