Rotary vibration damper
CA 2029202 C · Owner: Schwibinger, Peter · Inventors: Andrae, Rainer-Horst; Mueller, Klaus; Schwibinger, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary vibration damper for a shaft has a flywheel ring a, hub, circumferentially evenly distributed first resilient elements for interconnection of the flywheel ring with the hub and second resilient elements of substantially columnar shape which are located between the first resilient elements. The second resilient elements each have one end affixed to the hub and with the other end to the flywheel ring and are inwardly curved between their ends when the rotary vibration damper is at standstill. The curvature is progressively straightened out with increasing speed of rotation of the rotary vibration damper by the centrifugal force acting on the second resilient elements. This …
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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
- Filed November 2, 1990 and granted September 27, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2012.
- 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.