Low torque seal assembly
CA 2482020 C · Owner: Stemco Llc · Inventors: Hood, Charles Robin; Wells, Donald G.; Gold, Mark N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A unitized seal assembly (100) for use with roller or ball bearing assemblies is disclosed. The unitized seal (100) assembly includes among other things, a , radially outer ring (60) and a radially inner deflector ring (70). The outer ring (60) includes a first shield element (64) which defines a first sealing face (66). The radially inner deflector ring (70) includes a second shield element (74) which defines a second sealing face (78). The second sealing face (78) is dimensioned and configured so as to correspond to the first sealing face (66) such that when the first shield element (64) is positioned in a noncontacting proximity to the second shield element (74) a circuitous …
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 April 24, 2003 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2025.
- 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.