Damped high speed tire testing machine
CA 2065232 A1 · Owner: Cargould, Barry D. · Inventors: Beebe, James C.; Cargould, Barry D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine (9) for measuring force variation or imbalance of tires particularly at high speeds. A rotating roadwheel (10) is engaged by a tire (11) mounted on a spindle (12). Force sensing means such as load cells, are operably interposed between the tire spindle (12) and a force sensor mount (47). To minimize the adverse effects of mechanical resonance of the machine on force measurement accuracy, the roadwheel (10) and/or the force sensor mount (47) are connected to ground through dampers (23 32) which provide a, damping ratio of at least about five percent and preferably higher. Where the force sensor mount (47) is to be supported by such damping means (32), the invention further …
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 September 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.