Externally adjustable cam arm
CA 2220601 A1 · Owner: Hooper, John P. · Inventors: Hooper, John P.
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 adjustable mass cam arm for use in a rotary speed regulation device such as a belt drive torque converter. The cam arm has a base region and an elongated centrifugal mass region extending therefrom, the centrifugal mass region terminating in a proximal end which is attached to the base region. The cam arm has an internal cavity which in turn has a cavity opening which is located in the proximal end of the centrifugal mass region, and is readily accessible when the cam arm is installed in the torque converter. Mass can be installed in the internal cavity to add mass to the cam arm, thereby allowing for changing the moment of inertia of the cam arm. In a …
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 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2019.
- 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.