Trunnion bearing dust seal
CA 2024779 A1 · Owner: Trozzi, Norman K. · Inventors: Trozzi, Norman K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A seal assembly for a rotating drum in which a trunnion is secured relative to the drum for rotation therewith and is supported by a bearing assembly. At least one seal ring engages a shoulder of the trunnion in an area adjacent to the bearing surfaces of the trunnion and the bearing assembly. The seal ring is laterally held loosely in place by at least one retaining ring and is biased against the trunnion by a spring loaded cable. A lubricant is injected between the trunnion and the bearing assembly and collects in at least one reservoir. The lubricant is absorbed by the seal ring from the reservoir through a wick.
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 September 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2012.
- 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.