Thermal barrier for clutch (brake) actuation element (tube)
CA 2019500 C · Owner: Eaton Corporation · Inventors: Latsko, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a fluid operated clutch or brake of a type in which an inflatable annular tube element of elastomeric material actuates or moves a plurality of circumferentially aligned friction shoes radially outwardly or inwardly to effect torque-sustaining clutching or braking engagement. More particularly the, invention relates to clutches and brakes of the above type in which the circumferentially aligned shoes generate heat when in clutching or braking engagement and means to provide a thermal barrier to retard the transfer of heat from the friction shoes to the tube element.
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 June 21, 1990 and granted October 8, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.