Improved shock with acceleration sensitive damping
CA 2298291 A1 · Owner: Carlstedt, Robert P. · Inventors: Carlstedt, Robert P.; Bell, Stephen H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an improved method and apparatus for controlling, damping in a shock absorber based on the relative acceleration between the shock main, body and the piston rod extended from the shock main body. The shock absorber has a, reservoir compartment and a fluid-filled internal chamber divided into a compression, compartment and a rebound compartment by a movable piston. A piston rod is connected, to the piston and extends through a seal in the rebound end of the internal chamber. The, shock absorber contains flow passages connecting and normally allowing fluid , to flow, between the reservoir compartment, the compression compartment and the rebound, …
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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 February 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 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.