Bearing housing seal
CA 2229339 C · Owner: Lampart, Karl D. · Inventors: Lampart, Karl D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pillow block assembly comprising a hollow housing having axially spaced end walls (28, 32), an opening (24, 26) in at least one end wall for a rotatable shaft member (36), a bearing (40) in the housing to rotatably support the shaft member in the housing and seal means (Sl and So) in the wall of the housing defining the opening including a labyrinth seal member (Sl) mounted on the shaft, and a first resilient sealing member (84) disposed between the labyrinth seal member and the housing, and a second resilient sealing member (90) between the labyrinth seal member and the shaft.
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 24, 1996 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2018.
- 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.