Gear wheel assembly for hydraulic purposes, and method assembling the same
CA 2062252 A1 · Owner: Tychsen, Tom · Inventors: Petersen, Hans C.; Tychsen, Tom
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A gear wheel assembly for hydraulic purposes is provided, with a toothed ring having n internal teeth (4) and a gear wheel with n-1 external teeth (6) the, centre point of which gear wheel is displaced about an eccentricity with respect to the centre point of the toothed ring and rotates around this toothed ring the, gear wheel rolling on the toothed ring and a recess (10, 11) being provided on the tooth flanks (8 9) of, each tooth. It is desired that, with a gear wheel assembly of this kind, when the motor is without pressure a braking action shall occur without any increase in wear. For that purpose the gear wheel is oversized and, each recess has three successive curved …
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 March 4, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2014.
- 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.