Unitized wheel bearing seal
CA 1262746 C · Owner: Christiansen, Paul J. · Inventors: Christiansen, Paul J.
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 unitized wheel bearing seal includes inner and outer metal casings each of which has a cylindrical wall press fitted between inner and outer concentric bores in a wheel bearing to seal a lubricant space. The outer bore is stationary and the inner metal, casing has a radially extending outer annular flange. A two lip unsprung seal extends from the inner casing one leg engaging the annular flange and the other engaging the cylindrical wall of the outer casing each, at an acute angle, with a lubricant containing cavity formed between them. This orientation allows the lips to flex away to allow pressure egress from the lubricant space, but prevents flexing in the …
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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
- Granted November 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 7, 2006.
- 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.