A spring system for resilient suspension of objects, such as vehicle seats
CA 2189367 A1 · Owner: Rova, Jan-Erik · Inventors: Rova, Jan-Erik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention refers to a spring system for resilient suspension of objects subjected to great disturbing forces with low frequencies such as vehicle seats and particularly driver's seats in railway vehicles, and for accommodation of movements with at least three degrees of freedom between object and base the object (1) by means, of two sets of guide means (2 4) arranged vertically above each, other being mounted freely movable substantially horizontally in two directions (x, y) at right angles to each other. In order to provide for a more compact and less complicated spring arrangement as well as in order to obtain a desirable progressive spring action the invention, suggests that the …
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 May 4, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2016.
- 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.