Energex weight motor
CA 2329164 A1 · Owner: Woods, John T. · Inventors: Woods, John T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This weight motor utilizes the radial deflection which occurs in a spiral bevel pinion gear when, through a hinged-shaft yoke assembly pressure, upon the pinion shaft causes it to "attack" another spiral bevel gear (of more than 1.6 times* the diameter of the pinion gear) in the "unpreferred," convex-to- convex rotational direction. The net effect of such a choice of attack direction - related to the rotational direction of the larger spiral gear -, is that, in spite of its apparent pressure against the larger gear's rotation the, smaller pinion must relent to all the forces imposed by the larger gear but , it, is the radial deflection across the face of the smaller spiral gear which most …
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 December 21, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2022.
- 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.