Bearing system comprising two facing hydrodynamic bearings
CA 1237757 A · Owner: N.V.Philips'Gloeilampenfabrieken · Inventors: Van Roemburg, Franciscus M.J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bearing system comprising two facing hydrodynamic bearings. A bearing system comprises two hydrodynamic bearings 5 and 7 by means of which two bodies 1 and 3 are rotatably supported relative to one another. Each of the bearings 5 and 7 has an inner and an outer pattern of helical grooves, which patterns in the direction of rotation for which the bearing system is intended build-up in opposite direction a pressure in lubricant. A reservoir 17 is situated between the bearings 5 and 7 and has two patterns 27 and 29 of feed grooves which pump lubricant towards the bearings 5 and 7 during operation. Fig. 1.
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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 June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
- 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
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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.