Apparatus for adjusting hysteresis in a clutch
CA 2029652 A1 · Owner: Dana Corporation · Inventors: Flotow, Richard A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A clutch driven disc assembly includes a hub a support, plate and at least one reinforcing plate mounted on and rotatable relative to the hub, a plurality of circumferentially spaced fasteners connecting together said support plate and said reinforcing plate and a coaxial, spring damper. An apparatus for adjusting hysteresis in the damper includes a backing plate mounted on the hub with facing material abutting the fasteners for applying an axial load to the support plate. The load is selectively adjustable through a threaded locking nut and wave washer mounted on the hub. Segmented facing material on the backing plate can be used to delay the application of the load. Camming surfaces on …
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 November 9, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 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.